Faculty Profiles - TOKONAMI SHINJI

Papers - TOKONAMI SHINJI

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Elevated levels of tritium in surface water collected in the immediate aftermath of the Fukushima accident

Khemruthai Kheamsiri, Donovan Anderson, Hirofumi Tazoe, Kazusa Okada, Nao Otashiro, Haruka Kuwata, Hideki Kakiuchi, Masahiro Hosoda, Tibor Kovács, Shinji Tokonami, Naofumi Akata

Environmental Pollution 372 126040 - 126040 2025.5

Impact of intermittent high-dose radon exposures on lung epithelial cells: proteomic analysis and biomarker identification

Subsomwong, P; Kranrod, C; Sakai, Y; Asano, K; Nakane, A; Tokonami, S

JOURNAL OF RADIATION RESEARCH 66 ( 2 ) 107 - 114 2025.3

Fukushima’s Tap and Groundwater a Decade after the Nuclear Accident with Radiocesium, Tritium, and Radon

Donovan Anderson, Yuki Oda, Yasuyuki Taira, Yasutaka Omori, Hirofumi Tazoe, Naofumi Akata, Chutima Kranrod, Ryohei Yamada, Haruka Kuwata, Yuki Tamakuma, Hiromi Kudo, Minoru Osanai, Natsuki Nishimura, Yumi Yasuoka, Tetsuya Sanada, Masahiro Hosoda, Shinji Tokonami

Environmental Science & Technology 59 ( 10 ) 4906 - 4914 2025.3

Natural gamma dose rate and radioactivity concentrations at a former tin mining area in Kanchanaburi, Thailand

Saowarak Musikawan, Worawat Poltabtim, Khemruthai Kheamsiri, Chutima Kranrod, Theerawat Pluemjit, Kitkawin Aramrun, Yasutaka Omori, Hirofumi Tazoe, Masahiro Hosoda, Naofumi Akata, Shinji Tokonami

Journal of Radioanalytical and Nuclear Chemistry 2025.3

Radon exhalation rate and natural radioactivity in the building materials used in metropolitan Jakarta and its surrounding areas, Indonesia

Nugraha, ED; Modibo, OB; Pradana, R; Merdekawati, RA; Megagasri, K; Topandi, A; Rachman, AN; Kurniawan, R; Fajrianshah, EA; Hidayati, N; Winarni, ID; Rosianna, I; Rixson, L; Purnama, DS; Prasetio, H; Tokonami, S

FRONTIERS IN PUBLIC HEALTH 13 1539957 2025.2

Serum biomarkers associated with health impacts of high residential radon exposure: a metabolomic pilot study.

Narongchai Autsavapromporn, Aphidet Duangya, Pitchayaponne Klunklin, Imjai Chitapanarux, Chutima Kranrod, Churdsak Jaikang, Tawachai Monum, Atchara Paemanee, Shinji Tokonami

Scientific reports 15 ( 1 ) 5099 - 5099 2025.2

Revisiting the influence of the equilibrium factor and the contribution of Rn, Tn and their progeny in dose assessment

Gondji Dieu Souffit, Koyang François, Oumar Bobbo Modibo, Eka Djatnika Nugraha, Ndjana Nkoulou II Joseph Emmanuel, Jalaluddin Shah, Rosaline Mishra, Chutima Kranrod, Yasutaka Omori, Masahiro Hosoda, Balvinder K Sapra, Saïdou, Shinji Tokonami

Air Quality, Atmosphere & Health 2025.2

A Bioassay Analysis of Uranium and Lead in Urine Samples from a High Natural Background Radiation Area in Indonesia

Very Susanto, Radhia Pradana, Eka Djatnika Nugraha, Prihadi Sumintadireja, Oumar Bobbo Modibo, Ilsa Rosianna, Nastiti Rahajeng, Haeranah Ahmad, Rusbani Kurniawan, Leons Rixson, Atika Yuningsih, Yusraini Dian Inayati Siregar, Asep Saepuloh, Wahyudi Wahyudi, Hirofumi Tazoe, Naofumi Akata, Shinji Tokonami

Environments 12 ( 2 ) 51 - 51 2025.2

Systematic Review and Meta-Analysis of Inflammatory Biomarkers in Individuals Exposed to Radon

Anel Lesbek, Yasutaka Omori, Meirat Bakhtin, Polat Kazymbet, Shinji Tokonami, Nursulu Altaeva, Danara Ibrayeva, Yerlan Kashkinbayev

Biomedicines 13 ( 2 ) 499 - 499 2025.2

Public exposure from inhalation of radon and thoron around the tin mine and smelter areas in Bangka, Indonesia

Radhia Pradana, Eka Djatnika Nugraha, Yasutaka Omori, Sharah Nataz Shilfa, Ilma Dwi Winarni, Wahyudi Wahyudi, Untara Untara, Irwan Kurnia, Rini Safitri, Chutima Kranrod, Michiya Sasaki, Ade Devriany, Agus Nur Rachman, Rusbani Kurniawan, Haeranah Ahmad, Muflihatul Muniroh, Fahrul Islam, Ilsa Rosianna, Nurokhim Nurokhim, Makhsun Makhsun, Susilo Widodo, Heru Prasetio, Masahiro Hosoda, Shinji Tokonami

Scientific Reports 14 ( 1 ) 30731 2024.12

What can we learn from high background radiation area (HBRA) studies in three Asian countries: India, China and Indonesia? Radiological aspects in various HBRAs

Kranrod, C; Kudo, H; Tokonami, S

JOURNAL OF RADIATION RESEARCH 65 i32 - i41 2024.12

What can we learn from high background radiation area (HBRA) studies in three Asian countries: India, China and Indonesia? Radiological aspects in various HBRAs.

Chutima Kranrod, Hiromi Kudo, Shinji Tokonami

Journal of radiation research 65 ( Supplement_1 ) i32-i41 2024.12

What can we learn from high background radiation area (HBRA) studies in three Asian countries: India, China and Indonesia? Radiological aspects in various HBRAs

Chutima Kranrod, Hiromi Kudo, Shinji Tokonami

Journal of Radiation Research 65 i32 - i41 2024.12

Direct measurement of indoor thoron and radon progeny and estimation of inhalation dose in three cities in Gabon: Comparison of the use of thoron typical and measured equilibrium factor values

Sylvere Yannick Loemba Mouandza, Saïdou, W. Ndong, Chutima Kranrod, Masahiro Hosoda, P. Ondo Meye, R. Bipolo Djeune, E.-D. Durastanti-Rabenga Mombo, H.M.-J, Andeme-Abondhoume, B.C. Mabika, Ndjembidouma, T.B. Ekogo, G.H. Ben-Bolie, Shinji Tokonami

Journal of Environmental Radioactivity 280 107557 2024.12

Direct measurement of indoor thoron and radon progeny and estimation of inhalation dose in three cities in Gabon: Comparison of the use of thoron typical and measured equilibrium factor values

Mouandza, SYL; Säidou; Ndong, W; Kranrod, C; Hosoda, M; Meye, PO; Djeune, RB; Mombo, EDDR; Andeme-Abondhoume, HMJ; Ndjembidouma, BCM; Ekogo, TB; Ben-Bolie, GH; Tokonami, S

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 280 107557 2024.12

A Study of the Relationship Among Radon, Thoron and Radioactive Aerosol Particle Distribution in PM2.5 Risk Areas in Kanchanaburi Province, Thailand

Kranrod, C; Rattanapongs, C; Sola, P; Manowan, A; Onjan, A; Aramrun, K; Tokonami, S

ATMOSPHERE 15 ( 12 ) 2024.12

Structure shielding of school and gymnasium buildings against fallout gamma radiation from the Fukushima Daiichi Nuclear Power Plant accident

Manaya Taoka, Rui Kudo, Ryohei Yamada, Yasutaka Omori, Kazutaka Tanaka, Masahiro Hosoda, Shinji Tokonami

Ecotoxicology and Environmental Safety 288 117394 - 117394 2024.12

Serum Metabolomics Study to Screen Potential Biomarkers of Lung Cancer Risk in High Natural Background Radiation Areas of Thailand: A Pilot Study.

Narongchai Autsavapromporn, Aphidet Duangya, Pitchayaponne Klunklin, Imjai Chitapanarux, Chutima Kranrod, Churdsak Jaikang, Tawachai Monum, Atchara Paemanee, Shinji Tokonami

Cancers 16 ( 24 ) 2024.12

Tritium concentration in monthly precipitation in Okinawa and Kagoshima, southern Japan

Naofumi Akata, Kaho Ohno, Haruka Kuwata, Khemruthai Kheamsiri, Yukiko Yoshinaka, Ryohei Yamada, Yuisa Kitayama, Sana Aizawa, Shunya Nakasone, Akinobu Ishimine, Masahiro Tanaka, Yoshitaka Shiroma, Shinji Tokonami, Masahide Furukawa

Radiation Protection Dosimetry 200 ( 16-18 ) 1792 - 1796 2024.11

The Preface

Tokonami, S; Shimada, Y; Ueda, S; Mc Laughlin, J; Kovacs, T

RADIATION PROTECTION DOSIMETRY 200 ( 16-18 ) 1493 - 1494 2024.11

Radiation dose estimation for indoor radon, thoron and their progenies using a stochastic method—a small-scale survey in Wuhan, China

Jun Hu, Chutima Kranrod, Yasutaka Omori, Masahiro Hosoda, Shinji Tokonami

Radiation Protection Dosimetry 200 ( 16-18 ) 1720 - 1725 2024.11

Practical cut-off value for radon concentration in indoor air using an activated-charcoal radon collector

Yumi Yasuoka, June Takemoto, Yasutaka Omori, Nanaho Kawamoto, Nao Goda, Hiroyuki Nagahama, Jun Muto, Shinji Tokonami, Masahiro Hosoda, Takeshi Iimoto, Takahiro Mukai

Radiation Protection Dosimetry 200 ( 16-18 ) 1701 - 1705 2024.11

Evaluation of an ionization chamber characteristics for 222Rn calibration

Rio Furukawa, Miroslaw Janik, Satoshi Kodaira, Hiroki Hashimoto, Yasutaka Omori, Shinji Tokonami, Masahiro Hosoda, Morihito Shimizu, Seiya Manabe, Tetsuro Matsumoto, Chihiro Shimodan, Yasushi Sato, Hideki Harano

Radiation Protection Dosimetry 200 ( 16-18 ) 1696 - 1700 2024.11

Environmental dependence of geometrical efficiency for the scintillation cell in radon and thoron measurement

Kazuki Iwaoka, Lorna Jean H Palad, Chitho P Feliciano, Yuki Tamakuma, Masahiro Hosoda, Shinji Tokonami, Reiko Kanda, Takashi Moritake

Radiation Protection Dosimetry 200 ( 16-18 ) 1711 - 1714 2024.11

Effect of sampling face velocity on the ultrafine particle surface collection efficiency of a cellulose membrane filter and a cellulose-glass fiber filter for environmental airborne radioactivity monitoring

Mizuki Kiso, Manaya Taoka, Aoi Sampei, Hiroki Hashimoto, Yuki Abe, Yuki Oda, Yasutaka Omori, Ryohei Yamada, Masahiro Hosoda, Chutima Kranrod, Tetsuo Ishikawa, Shinji Tokonami

Radiation Protection Dosimetry 200 ( 16-18 ) 1671 - 1675 2024.11

Assessment of annual effective doses from indoor radon and thoron in Doi Lo, Chiang Mai, Thailand

Tarika Thumvijit, Siriprapa Somboon, Monruedee Tapanya, Kewalin Ruktinnakorn, Chutima Kranrod, Shinji Tokonami, Supitcha Chanyotha, Sompong Sriburee

Radiation Protection Dosimetry 200 ( 16-18 ) 1715 - 1719 2024.11

Thoron exposure in the radon-thoron prone area of the Adamawa Region, Cameroon

Soumayah Bachirou, Saïdou, Rosaline Mishra, Chutima Kranrod, Masahiro Hosoda, Sabahet Jalaluddin, Balvinder K. Sapra, Moise Godfroy Kwato Njock, Shinji Tokonami

Applied Radiation and Isotopes 213 111498 - 111498 2024.11

International intercomparison and quality assessment of passive and active 222Rn measuring devices in the Asia-Pacific region

N. Karunakara, A.P. Vijith, Rosaline Mishra, B.K. Sahoo, Miroslaw Janik, Sudeep Kumara, B.K. Sapra, Shinji Tokonami, Chutima Kranrod, S. Chandrasekaran, N. Chitra, Seon hong Kim, Juhee Yoo, Chao Zhao, Bo Chen, Hong-Gi Kim, Jin-il Kim, Josef Holecek, Le Dinh Cuong

Radiation Measurements 178 107295 - 107295 2024.11

Ecological and Health Risks from Trace Elements Contamination in Soils at the Rutile Bearing Area of Akonolinga, Cameroon

Fayette Kitcha Sime, Dieu Souffit Gondji, Ilsa Rosianna, Eka Djatnika Nugraha, Oumar Bobbo Modibo, Chutima Kranrod, Yasutaka Omori, Naofumi Akata, Masahiro Hosoda, Saïdou, Shinji Tokonami

Applied Sciences 14 ( 22 ) 10538 - 10538 2024.11

Transparent X-ray Shielding Solutions with Various Metal Ions

Ryoma Tokonami, Minoru Osanai, Masahiro Hosoda, Shinji Tokonami, Tatsuhiro Takahashi

ACS Omega 9 ( 44 ) 44770 - 44777 2024.10

Interlaboratory Comparison in Japan for Radon Determination in Water

NAKASONE Shunya, ISHIMINE Akinobu, TAMAKUMA Yuki, HOSODA Masahiro, AKATA Naofumi, SANADA Tetsuya, TANAKA Masahiro, YOKOYAMA Sumi, SAKAMA Minoru, TANAHARA Akira, FURUKAWA Masahide, TOKONAMI Shinji, YASUOKA Yumi, SHIROMA Yoshitaka

Japanese Journal of Health Physics 59 ( 3 ) 131 - 134 2024.10

Development of radon detectors calibration system in Cameroon

Oumar Bobbo Modibo, Gondji Dieu Souffit, Koyang François, Ndjana Nkoulou II Joseph Emmanuel, Eka Djatnika Nugraha, Chutima Kranrod, Saïdou, Shinji Tokonami

Radiation Medicine and Protection 2024.10

Flexible Composites of Barium Sulfate Modified by Tannic Acid Using Glycerol/Starch for X-Ray Shielding Applications

Tokonami, R; Osanai, M; Hosoda, M; Tokonami, S; Takahashi, T

MACROMOLECULAR CHEMISTRY AND PHYSICS 226 ( 4 ) 2024.9

Radon exhalation rate from the latex pillows and its potential exposure to users

Phachirarat Sola, Kanokporn Boonsirichai, Santi Raksawong, Ritiron Samran, Pimprapa Chaijak, Hirofumi Tazoe, Chutima Kranrod, Rawiwan Kritsananuwat, Sattawat Jongjitklang, Vichai Puripunyavanich, Masahiro Hosoda, Waleeporn Pongkua, Shinji Tokonami

Radiation Medicine and Protection 2024.9

Influence of Meteorological Parameters on Indoor Radon Concentration Levels in the Aksu School

Yerlan Kashkinbayev, Meirat Bakhtin, Polat Kazymbet, Anel Lesbek, Baglan Kazhiyakhmetova, Masaharu Hoshi, Nursulu Altaeva, Yasutaka Omori, Shinji Tokonami, Hitoshi Sato, Danara Ibrayeva

Atmosphere 15 ( 9 ) 1067 - 1067 2024.9

Radon in Soil Gas and Ambient Dose Equivalent Rate Measurements in Yaoundé, Cameroon

13 ( 2 ) 52 - 59 2024.8

Water Quality Analysis for Comprehensive Evaluation of Combined Exposure from Heavy Metals and Radionuclides

Tazoe Hirofumi, Oda Yuki, Kiso Mizuki, Sampei Aoi, Hashimoto Hiroki, Taira Yasuyuki, Omori Yasutaka, Kranrod Chutima, Shimizu Mayumi, Kudo Hiromi, Akata Naofumi, Yamada Ryohei, Yamaguchi Masaru, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 13 ( 2 ) 94 2024.8

The Project on Indoor Radon Measurement in Kazakhstan. What Do We Need to Clarify?

Omori Yasutaka, Bakhtin Meirat, Kudo Hiromi, Kranrod Chutima, Yoshinaga Shinji, Tokonami Shinji, Hoshi Masaharu

Radiation Environment and Medicine 13 ( 2 ) 76 2024.8

The Effective Dose from Inhalation of Radon and Thoron in the Dwelling around the Tin Mine and Smelter Area in Bangka, Indonesia

Radhia Pradana, Eka D. Nugraga, Sharah N. Shilfa, Omori Yasutaka, Wahyudi Wahyudi, Untara Untara, Irwan Kurnia, Rini Safitri, Kranrod Chutima, Sasaki Michiya, Ade Devriany, Agus N. Rachman, Rusbani Kurniawan, Leli Nirwani, Nurokhim Nurokhim, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 13 ( 2 ) 83 2024.8

Radon in Soil Gas and Ambient Dose Equivalent Rate Measurements in Yaoundé, Cameroon

Gourda Hebsia Eric, Bobbo Modibo Oumar, Ndimantchi Ayoba, Emmanuel Ndjana Nkoulou II Joseph, Djatnika Nugraha Eka, Kranrod Chutima, Omori Yasutaka, Hosoda Masahiro, Saïdou, Tokonami Shinji

Radiation Environment and Medicine 13 ( 2 ) 52 - 59 2024.8

Preparation of Barium Sulfate Polymer Composites Using Tapioca-Starch and Its X-Ray Shielding Properties

Tokonami Ryoma, Osanai Minoru, Hosoda Masahiro, Tokonami Shinji, Takahashi Tatsuhiro

Radiation Environment and Medicine 13 ( 2 ) 88 2024.8

Morphological Characteristics of Respiratory Tract on Inhalation Dose Assessments for Japanese Populations

Sampei Aoi, Kiso Mizuki, Hashimoto Hiroki, Sakai Yuna, Morita Takeshi, Osanai Minoru, Omori Yasutaka, Kakehata Shinya, Tsushima Fumiyasu, Hosoda Masahiro, Saito Yoko, Kakeda Shingo, Tokonami Shinji

Radiation Environment and Medicine 13 ( 2 ) 85 2024.8

Dose Assessments Due to Inhalation of Radon and Thoron at 70 Dwellings in the Coastal Area of Fukushima

Hosoda Masahiro, Oda Yuki, Kranrod Chutima, Sampei Aoi, Kiso Mizuki, Taira Yasuyuki, Omori Yasutaka, Tazoe Hirofumi, Akata Naofumi, Shimizu Mayumi, Kudo Hiromi, Yamada Ryohei, Tamakuma Yuki, Tokonami Shinji

Radiation Environment and Medicine 13 ( 2 ) 82 2024.8

Comparison of Gamma-Ray Dose Rate Map Using Car-Borne Survey and Man-Borne Survey

Kiso Mizuki, Kuwata Haruka, Oda Yuki, Poltabtim Worawat, Musokawan Saowarak, Kranrod Chutima, Omori Yasutaka, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 13 ( 2 ) 95 2024.8

Annual Effective Dose Due to External Exposure at Hamadori District in Fukushima Prefecture

Oda Yuki, Kiso Mizuki, Sampei Aoi, Hashimoto Hiroki, Taira Yasuyuki, Omori Yasutaka, Tazoe Hirofumi, Kranrod Chutima, Shimizu Mayumi, Kudo Hiromi, Akata Naofumi, Yamada Ryohei, Yamaguchi Masaru, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 13 ( 2 ) 81 2024.8

Effective dose assessment due to inhalation of 222Rn, 220Rn, and their progeny: highlighting the major contribution of thoron in a thoron-prone area in Cameroon

Djeufack, LB; Hamadou, I; Kranrod, C; Mishra, R; Hosoda, M; Sapra, BK; Saïdou; Tokonami, S

RADIATION AND ENVIRONMENTAL BIOPHYSICS 63 ( 3 ) 357 - 369 2024.8

Effective dose assessment due to inhalation of 222Rn, 220Rn, and their progeny: highlighting the major contribution of thoron in a thoron-prone area in Cameroon

Djeufack, LB; Hamadou, I; Kranrod, C; Mishra, R; Hosoda, M; Sapra, BK; Saïdou; Tokonami, S

RADIATION AND ENVIRONMENTAL BIOPHYSICS 63 ( 3 ) 357 - 369 2024.8

Contribution of Thoron and Its Progeny to the Effective Dose by Inhalation in the Uranium-Thorium Bearing Regions of Mayo Kebbi and Guéra in Chad

Ziebno Patale, Bineng Guillaume Samuel, Chutima Kranrod, Oumar Bobbo Modibo, Takoukam Soh Serge Didier, Hamadou Yerima Abba, Yasutaka Omori, Masahiro Hosoda, Saïdou, Ekobena Henri Paul, Shinji Tokonami

Health Physics 2024.6

Contribution of Thoron and Its Progeny to the Effective Dose by Inhalation in the Uranium-Thorium Bearing Regions of Mayo Kebbi and Guéra in Chad

Health Physics 2024.6

Health Impacts of Natural Background Radiation in High Air Pollution Area of Thailand

Autsavapromporn, N; Kranrod, C; Kritsananuwat, R; Sola, P; Klunklin, P; Chitapanarux, I; Jaikang, C; Monum, T; Hosoda, M; Tokonami, S

TOXICS 12 ( 6 ) 2024.6

Health Impacts of Natural Background Radiation in High Air Pollution Area of Thailand

Autsavapromporn, N; Kranrod, C; Kritsananuwat, R; Sola, P; Klunklin, P; Chitapanarux, I; Jaikang, C; Monum, T; Hosoda, M; Tokonami, S

TOXICS 12 ( 6 ) 2024.6

Real-time air quality monitoring based on locally developed unmanned aerial vehicle and low-cost smart electronic device

Jacob Mbarndouka Taamté, Michaux Kountchou Noube, Vitrice Ruben Folifack Signing, Yerima Abba Hamadou, Hosoda Masahiro, Sa\"{\i}dou, Shinji Tokonami

Journal of Instrumentation 19 ( 5 ) P05036 - P05036 2024.5

Simple surface modification of barium sulfate for improving the interface of polymer composites and its x-ray shielding properties.

(1)Ryoma Toonami, Minoru Osanai, Masahiro Hosoda, Shinji Tokonami, Tatsuhiro Takahashi.

Polymer Composites 2024 1 - 11 2024.2

Simple surface modification of barium sulfate for improving the interface of polymer composites and its x‐ray shielding properties

Ryoma Tokonami, Minoru Osanai, Masahiro Hosoda, Shinji Tokonami, Tatsuhiro Takahashi

Polymer Composites 45 ( 8 ) 7519 - 7529 2024.2

Changes in Particulate Matter (PM2.5 and PM10) Concentrations and Ambient Dose Equivalent Rates at Different Altitudes in Chiang Mai, Thailand

(2)Chutima Kranrod, Tarika Thumvijit, Ryohei Yamada, Worawat Poltabtim, Mizuki Kiso, Sompong Sriburee, Siriprapa Somboon, Kewalin Ruktinnakorn and Shinji Tokonami

Radiation Environment and Medicine 2024 13 ( 1 ) 28 - 34 2024.2

Changes in Particulate Matter (PM2.5 and PM10) Concentrations and Ambient Dose Equivalent Rates at Different Altitudes in Chiang Mai, Thailand

Kranrod Chutima, Thumvijit Tarika, Yamada Ryohei, Poltabtim Worawat, Kiso Mizuki, Sriburee Sompong, Somboon Siriprapa, Ruktinnakorn Kewalin, Tokonami Shinji

Radiation Environment and Medicine 13 ( 1 ) 28 - 34 2024.2

Changes in Particulate Matter (PM2.5 and PM10) Concentrations and Ambient Dose Equivalent Rates at Different Altitudes in Chiang Mai, Thailand

Chutima Kranrod, Tarika Thumviji, Ryohei Yamada, Worawat Poltabtim, Mizuki Kiso, Sompong Sriburee, Siriprapa Somboon, Kewalin Ruktinnakorn, Shinji Tokonami

Radiation Environment and Medicine 2024 13 ( 1 ) 28 - 34 2024.2

Simultaneous measurements of radon, thoron and thoron progeny and induced cancer risk assessment in Djeno, Pointe-Noire, Republic of Congo

Jucit Sem Sondzo, Guy Blanchard Dallou, Philippe Ondo Meye, Russel Rolphe Caroll Moubakou Diahou, Clobite Bouka Biona, Chutima Kranrod, Yasutaka Omori, Masahiro Hosoda, Saïdou, Shinji Tokonami

Radiation Protection Dosimetry ncad314 ( 5 ) 437 - 447 2024.1

Temporal variation of tritium concentration in monthly precipitation collected at a Difficult-to-Return Zone in Namie Town, Fukushima Prefecture, Japan

Ryohei Yamada, Hidenao Hasegawa, Naofumi Akata, Hideki Kakiuchi, Shinya Ochiai, Haruka Kuwata, Khemruthai Kheamsiri, Shinji Tokonami, Shinji Ueda

Environmental Science and Pollution Research 31 ( 5 ) 7818 - 7827 2024.1

Assessment of Radiological Risks due to Indoor Radon, Thoron and Progeny, and Soil Gas Radon in Thorium-Bearing Areas of the Centre and South Regions of Cameroon

Atangana Bingana Martin Serge, Takoukam Soh Serge Didier, Bineng Guillaume Samuel, Chutima Kranrod, Yasutaka Omori, Masahiro Hosoda, Saïdou, Shinji Tokonami

Atmosphere 14 ( 12 ) 1708 - 1708 2023.12

Uranium Isotope Characterization in Volcanic Deposits in a High Natural Background Radiation Area, Mamuju, Indonesia

Ilsa Rosianna, Eka Djatnika Nugraha, Hirofumi Tazoe, Heri Syaeful, Adi Gunawan Muhammad, I Gde Sukadana, Frederikus Dian Indrastomo, Ngadenin, Fadiah Pratiwi, Agus Sumaryanto, Sucipta Sucipta, Hendra A. Pratama, Deni Mustika, Leli Nirwani, Nurokhim, Yasutaka Omori, Masahiro Hosoda, Naofumi Akata, Shinji Tokonami

Geosciences 13 ( 12 ) 388 2023.12

Improvement of spectral analysis using a NaI (Tl) scintillation spectrometer to evaluate ambient gamma dose rates from primordial radionuclides

(7)Yasutaka Omori, Atsuyuki Sorimachi, Masahiro Hosoda, Sarata Kumar Sahoo, Norbert Kavasi, Osamu Kurihara, Shinji Tokonami, Tetsuo Ishikawa.

Radiation Protection Dosimetry 199 ( 18 ) 2233 - 2237 2023.11

Improvement of spectral analysis using a NaI(Tl) scintillation spectrometer to evaluate ambient gamma dose rates from primordial radionuclides

Yasutaka Omori, Atsuyuki Sorimachi, Masahiro Hosoda, Sarata Kumar Sahoo, Norbert Kavasi, Osamu Kurihara, Shinji Tokonami, Tetsuo Ishikawa

Radiation Protection Dosimetry 199 ( 18 ) 2233 - 2237 2023.11

Estimation of radiation dose due to thoron and progeny inhalation in high background natural radiation area of Odisha, India

Rakesh C Ramola, Mukesh Prasad, Sarata K Sahoo, Shinji Tokonami

Radiation Protection Dosimetry 199 ( 18 ) 2179 - 2182 2023.11

Development of calculation tool for iodine 131 biodistribution depending on the aerosol particle distribution

Kazuki Iwaoka, Eliza B Enriquez, Yuki Tamakuma, Masahiro Hosoda, Shinji Tokonami, Chitho P Feliciano, Reiko Kanda

Radiation Protection Dosimetry 199 ( 18 ) 2244 - 2247 2023.11

Calibration experiments for radon in drinking water measurements using portable-type electrostatic-collection radon monitors

Masahiro Hosoda, Yasutaka Omori, Hiroki Hashimoto, Maho Matsumoto, Yumi Yasuoka, Tetsuya Sanada, Yuki Oda, Mizuki Kiso, Aoi Sampei, Chutima Kranrod, Hirofumi Tazoe, Naofumi Akata, Yasuyuki Taira, Yuki Tamakuma, Ryohei Yamada, Hiromi Kudo, Mayumi Shimizu, Shinji Tokonami

Radiation Protection Dosimetry 199 ( 18 ) 2203 - 2206 2023.11

Site-specific dose conversion factors for radon progeny based on ambient aerosol characteristics in an outdoor environment and a tourist cave

Yuki Tamakuma, Mizuki Kiso, Aoi Sampei, Hiroki Hashimoto, Chutima Kranrod, Masahiro Hosoda, Sohei Ooka, Masahide Furukawa, Shinji Tokonami

Radiation Protection Dosimetry 199 ( 18 ) 2207 - 2211 2023.11

Mapping in a radon-prone area in Adamawa region, Cameroon, by measurement of radon activity concentration in soil

Soumayah Bachirou, Saïdou, Chutima Kranrod, Joseph Emmanuel Ndjana Nkoulou II, Daniel Bongue, Hamadou Yerima Abba, Masahiro Hosoda, Moise Godfroy Kwato Njock, Shinji Tokonami

Radiation and Environmental Biophysics 62 ( 4 ) 427 - 439 2023.11

Development and a feasibility study using Gafchromic XRQA2 film as a novel passive radon measurement technique

Worawat Poltabtim, Chutima Kranrod, Yasutaka Omori, Saowarak Musikawan, Masahiro Hosoda, Shinji Tokonami

Radiation Measurements 168 107012 - 107012 2023.11

External dose measurements to investigate the body-size dependence of personal dosemeter responses in areas affected by the Fukushima Daiichi nuclear accident

K Yajima, E Kim, K Tani, H Arae, K Iwaoka, M Hosoda, S Tokonami, O Kurihara, T Aono

Radiation Protection Dosimetry 199 ( 15-16 ) 2000 - 2004 2023.10

Doses from inhalation of radon and thoron for residents in tectonically active region in central Indian Himalaya

G. Prasad, S. Kimothi, S. Chandra, Y. Omori, S. K. Sahoo, T. Ishikawa, S. Tokonami, R. C. Ramola

Journal of Radioanalytical and Nuclear Chemistry 333 ( 6 ) 2999 - 3005 2023.9

Expectation for Utilizing Supercomputers in Natural Radiation Research

Iwaoka Kazuki, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 12 ( 2 ) 107 - 110 2023.8

Expectation for Utilizing Supercomputers in Natural Radiation Research

Kazuki Iwaoka, Masahiro Hosoda, Shinji Tokonami

Radiation Environment and Medicine 12 ( 2 ) 107 - 110 2023.8

Car-borne survey and dose assessment from external radiation exposure in Bangka Island

Radhia Pradana, Eka Djatnika Nugraha, Wahyudi Wahyudi, Untara Untara, Muji Wiyono, Ade Devriany, Sharah Nataz Shilfa, Michiya Sasaki, Heru Prasetio, Ilma Dwi Winarni, Egnes Ekaranti, Nunung Nuraeni, Chutima Kranrod, Dadong Iskandar, Gatot Suhariyono, Harry Nugroho Eko Surniyantoro, Makhsun Makhsun, Susilo Widodo, Yasutaka Omori, Eri Hiswara, Masahiro Hosoda, Shinji Yoshinaga, Shinji Tokonami

Environmental Science and Pollution Research 30 ( 38 ) 89280 - 89292 2023.8

The presence of carcinogenic radon in the Padma River water, adjacent to the Rooppur Nuclear Power Plant

M.M. Mahfuz Siraz, M.S. Alam, A.M. Jubair, S.C. Das, J. Ferdous, Z. Hossain, S. Das, Mayeen Uddin Khandaker, D.A. Bradley, Shinji Tokonami, S. Yeasmin

Nuclear Engineering and Technology 55 ( 8 ) 3046 - 3053 2023.8

Tritium concentration in bottled drinking water and internal dose assessment

Khemruthai Kheamsiri, Naofumi Akata, Haruka Kuwata, Masahiro Tanaka, Masahiro Hosoda, Michiya Sasaki, Yoshitaka Shiroma, Shinji Tokonami, Ryohei Yamada, Chutima Kranrod, Kazuki Iwaoka, Tibor Kovάcs

Journal of Radioanalytical and Nuclear Chemistry 333 ( 5 ) 2597 - 2603 2023.7

Environmental radioactivity measurements in soil using inductively coupled plasma mass spectrometry and gamma-ray spectrometry in various areas in Cameroon

Modibo Oumar Bobbo, Guosheng Yang, Saïdou, Hirofumi Tazoe, Naofumi Akata, Chutima Kranrod, Masahiro Hosoda, Shinji Tokonami

Journal of Radioanalytical and Nuclear Chemistry 333 ( 5 ) 2557 - 2565 2023.7

Residential radon exposure in Astana and Aqsu, Kazakhstan

Shinji Tokonami, Chutima Kranrod, Polat Kazymbet, Yasutaka Omori, Meirat Bakhtin, Worawat Poltabtim, Saowarak Musikawan, Radhia Pradana, Yerlan Kashkinbayev, Kassym Zhumadilov, Ainur Pirmanova, Moldir Aumalikova, Zhantore Isa, Aya Sakaguchi, Hitoshi Sato, Masaharu Hoshi

Journal of Radiological Protection 43 ( 2 ) 023501 - 023501 2023.6

Public Exposure to Natural Radiation and the Associated Increased Risk of Lung Cancer in the Betare-Oya Gold Mining Areas, Eastern Cameroon

Joseph Emmanuel Ndjana Nkoulou, Louis Ngoa Engola, Guy Blanchard Dallou, Saïdou, Daniel Bongue, Masahiro Hosoda, Moïse Godefroy Kwato Njock, Shinji Tokonami

Journal of Radiation Protection and Research 48 ( 2 ) 59 - 67 2023.6

A study on measuring the 222Rn in the Buriganga River and tap water of the megacity Dhaka

M. S. Alam, M. M. Mahfuz Siraz, Jubair A. M., S. C. Das, D. A. Bradley, Mayeen Uddin Khandaker, Shinji Tokonami, Afroza Shelley, Selina Yeasmin

PLOS ONE 18 ( 5 ) e0286267 - e0286267 2023.5

Fruit Peel Powder as Natural Antioxidant and Reinforcing Bio-Filler in Natural Rubber Latex Gloves: Cases of Mangosteen, Pomelo and Durian

Arkarapol Thumwong, Jitsuna Darachai, Nuatawan Thamrongsiripak, Shinji Tokonami, Tetsuo Ishikawa, Kiadtisak Saenboonruang

Antioxidants 12 ( 5 ) 1119 - 1119 2023.5

Efforts to Bioassay for Internal Radiation Dose Assessment at Advanced Radiation Emergency Medical Support Center, Hirosaki University

YAMADA Ryohei, OSANAI Osamu, AKATA Naofumi, TAZOE Hirofumi, TSUJIGUCHI Takakiyo, ITO Katsuhiro, HANADA Hiroyuki, TOKONAMI Shinji, KASHIWAKURA Ikuo

Japanese Journal of Health Physics 58 ( 1 ) 27 - 30 2023.4

Status of Radon Traceability and Calibration Techniques for Radon Gas

Tamakuma Yuki, Kranrod Chutima, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 12 ( 1 ) 12 - 24 2023.2

Estimation of Ambient Dose Equivalent Rate Distribution Map Using Walking Survey Technique in Hirosaki City, Aomori, Japan

Worawat Poltabtim, Saowarak Musikawan, Arkarapol Thumwong, Yasutaka Omori, Chutima Kranrod, Masahiro Hosoda, Kiadtisak Saenboonruang, Shinji Tokonami

International Journal of Environmental Research and Public Health 20 ( 3 ) 2657 - 2657 2023.2

A study into the long-overlooked carcinogenic radon in bottled water and deep well water in Dhaka, Bangladesh

Jubair Al Mahmud, M. M. Mahfuz Siraz, Mohammad Shafiqul Alam, Sudeb Chandra Das, David Andrew Bradley, Mayeen Uddin Khandaker, Shinji Tokonami, Afroza Shelley, Selina Yeasmin

International Journal of Environmental Analytical Chemistry 104 ( 18 ) 1 - 13 2023.1

Evaluation of radon concentration measurements in water using the radon degassing method

Maho Matsumoto, Yumi Yasuoka, Yui Takakaze, Masahiro Hosoda, Shinji Tokonami, Kazuki Iwaoka, Takahiro Mukai

Journal of Radioanalytical and Nuclear Chemistry 332 ( 1 ) 167 - 172 2023.1

From Radon and Thoron Measurements, Inhalation Dose Assessment to National Regulation and Radon Action Plan in Cameroon

Saidou, Tokonami Shinji, Hosoda Masahiro, Simo Augustin, Hell Joseph Victor, German Olga, Meless Esmel Gislere Oscar

JOURNAL OF RADIATION PROTECTION AND RESEARCH 47 ( 4 ) 237 - 245 2022.12

Oxidative Modification Status of Human Serum Albumin Caused by Chronic Low-Dose Radiation Exposure in Mamuju, Sulawesi, Indonesia

Masaru Yamaguchi, Yota Tatara, Eka Djatnika Nugraha, Yuki Tamakuma, Yoshiaki Sato, Tomisato Miura, Masahiro Hosoda, Shinji Yoshinaga, Mukh Syaifudin, Shinji Tokonami, Ikuo Kashiwakura

Antioxidants 11 ( 12 ) 2384 - 2384 2022.12

Dual X-ray- and Neutron-Shielding Properties of Gd2O3/NR Composites with Autonomous Self-Healing Capabilities

Worawat Poltabtim, Arkarapol Thumwong, Ekachai Wimolmala, Chanis Rattanapongs, Shinji Tokonami, Tetsuo Ishikawa, Kiadtisak Saenboonruang

Polymers 14 ( 21 ) 4481 - 4481 2022.11

TEMPORAL VARIATION OF POST-ACCIDENT 129I IN ATMOSPHERIC PARTICULATE MATTER COLLECTED FROM AN EVACUATED AREA OF FUKUSHIMA PREFECTURE, JAPAN

Hidenao Hasegawa, Hideki Kakiuchi, Shinya Ochiai, Naofumi Akata, Shinji Ueda, Shinji Tokonami

Radiation Protection Dosimetry 198 ( 13-15 ) 1143 - 1149 2022.9

INFLUENCE OF SAMPLING FLOW RATE ON THORON EXHALATION RATE MEASUREMENTS BY THE CIRCULATION METHOD

Masahiro Hosoda, Ryohei Yamada, Hiromu Kobyashi, Yuki Tamakuma, Eka Djatnika Nugraha, Hiroki Hashimoto, Ryoju Negami, Chutima Kranrod, Yasutaka Omori, Hirofumi Tazoe, Naofumi Akata, Shinji Tokonami

Radiation Protection Dosimetry 198 ( 13-15 ) 904 - 908 2022.9

Serum Proteomic and Oxidative Modification Profiling in Mice Exposed to Total Body X-Irradiation

Masaru Yamaguchi, Yota Tatara, Eka Djatnika Nugraha, Yoshiaki Sato, Tomisato Miura, Masahiro Hosoda, Mukh Syaifudin, Shinji Tokonami, Ikuo Kashiwakura

Antioxidants 11 ( 9 ) 1710 2022.9

A Comparative Study on X-ray Shielding and Mechanical Properties of Natural Rubber Latex Nanocomposites Containing Bi2O3 or BaSO4: Experimental and Numerical Determination

Thumwong Arkarapol, Chinnawet Manchusa, Intarasena Preawpraw, Rattanapongs Chanis, Tokonami Shinji, Ishikawa Tetsuo, Saenboonruang Kiadtisak

POLYMERS 14 ( 17 ) 3654 2022.9

ヒト血清タンパク質の酸化修飾に着目した慢性低線量放射線被ばく線量の検出(Detection of biological responses to low-dose radiation in humans)

山口平, 多田羅洋太, Nugraha Djatnika Eka, Ramadhani Dwi, 玉熊佑紀, 佐藤喜晃, 三浦富智, 細田正洋, 吉永信治, Mukh Syaifudin, 柏倉幾郎, 床次眞司

日本放射線影響学会大会講演要旨集 65回 50 - 50 2022.9

全身X線照射マウスにおける血清プロテオミクスおよび酸化的修飾プロファイリング(Serum proteomic and oxidative modification profiling in total body X-irradiated mice)

柏倉幾郎, 山口平, 多田羅洋太, Nugraha Djatnika Eka, 佐藤嘉晃, 三浦富智, 細田正洋, Syaifudin Mukh, 床次眞司

日本放射線影響学会大会講演要旨集 65回 191 - 191 2022.9

Activities of the Organization for Radiation Emergency Medicine and Cooperation Promotion in Hirosaki University

Kashiwakura Ikuo, Akata Naofumi, Hosoda Masahiro, Miura Tomisato, Itaki Chieko, Tsujiguchi Takakiyo, Kameya Sadakiyo, Ito Katsutoshi, Hanada Hiroyuki, Tokonami Shinji

Radiation Environment and Medicine 11 ( 2 ) 75 - 81 2022.8

Utilization of Computational Fluid Dynamics Simulation for Gas Exposure Chamber

Iwaoka Kazuki, Janik Miroslaw, Tamakuma Yuki, Hosoda Masahiro, Tokonami Shinji, Kanda Reiko

Radiation Environment and Medicine 11 ( 2 ) 61 - 65 2022.8

Thoron Equilibrium Factor Observed around Chhatrapur Placer Deposit, a High Background Radiation Area in Odisha, India

Omori Yasutaka, Prasad Ganesh, Vidya Sagar Devulapalli, Kumar Sahoo Sarata, Sorimachi Atsuyuki, Janik Miroslaw, Ishikawa Tetsuo, Ch Rakesh, Ramola, Tokonami Shinji

Radiation Environment and Medicine 11 ( 2 ) 50 - 55 2022.8

An Overview of Passive-Type Detectors for Radon and Its Progeny Measurement

Poltabtim Worawat, Kranrod Chutima, Tokonami Shinji

Radiation Environment and Medicine 11 ( 2 ) 41 - 49 2022.8

Internal Exposure From Indoor Radon, Thoron and Their Progeny in Residence Around High Background Radiation Area, Phang Nga Province, Thailand

Rattanapongs Chanis Pornnumpa, Kranrod Chutima, Jitpakdee Manit, Tokonami Shinji, Chanyotha Supitcha

RADIATION PROTECTION DOSIMETRY 198 ( 8 ) 467 - 471 2022.7

Low-cost radon monitoring with validation by a reference instrument

Jacob Mbarndouka Taamte, Francois Koyang, Dieu Souffit Gondji, Modibo Oumar Bobbo, Yerima Abba Hamadou, Michaux Kountchou Noube, Saidou, Tokonami Shinji

INSTRUMENTATION SCIENCE & TECHNOLOGY 51 ( 1 ) 68 - 83 2022.6

Health Effects of Natural Environmental Radiation during Burning Season in Chiang Mai, Thailand

Narongchai Autsavapromporn, Chutima Krandrod, Pitchayaponne Klunklin, Rawiwan Kritsananuwat, Churdsak Jaikang, Kittikun Kittidachanan, Imjai Chitapanarux, Somchart Fugkeaw, Masahiro Hosoda, Shinji Tokonami

Life 12 ( 6 ) 853 - 853 2022.6

Radon Risk Assessment and Correlation Study of Indoor Radon, Radium-226, and Radon in Soil at the Cobalt-Nickel Bearing Area of Lomie, Eastern Cameroon

Souffit Gondji Dieu, Valdes Monempimb Jacob, Modibo Oumar Bobbo, Flore Tchuente Siaka Yvette, Felix Beyala Ateba Jean, Saidou, Tokonami Shinji

WATER AIR AND SOIL POLLUTION 233 ( 6 ) 2022.6

Detection of biological responses to low-dose radiation in humans

Masaru Yamaguchi, Yota Tatara, Eka Djatnika Nugraha, Dwi Ramadhani, Yuki Tamakuma, Yoshiaki Sato, Tomisato Miura, Masahiro Hosoda, Shinji Yoshinaga, Mukh Syaifudin, Ikuo Kashiwakura, Shinji Tokonami

Free Radical Biology and Medicine 184 196 - 207 2022.5

Development of an in-situ continuous air monitor for the measurement of highly radioactive alpha-emitting particulates (α-aerosols) under high humidity environment

Youichi Tsubota, Fumiya Honda, Shinji Tokonami, Yuki Tamakuma, Takahiro Nakagawa, Atsushi Ikeda-Ohno

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1030 166475 - 166475 2022.5

Radiation exposure due to 222Rn, 220Rn and their progenies in three metropolises in China and Japan with different air quality levels

Jun Hu, Yunyun Wu, Miki Arian Saputra, Yanchao Song, Guosheng Yang, Shinji Tokonami

Journal of Environmental Radioactivity 244 106830 - 106830 2022.4

Text Mining Analysis of Questions and Explanations in Radiation Risk Communication Round Table Discussions

SHIMIZU Mayumi, KIDACHI Ruriko, OGURA Koya, KIKUCHI Kazutaka, YAMADA Motoya, KUDO Kohsei, OSANAI Minoru, TSUJIGUCHI Takakiyo, TANAKA Makoto, NORIKANE Kazuya, SHIROMA Yoshitaka, TOKONAMI Shinji, KASHIWAKURA Ikuo

Japanese Journal of Health Physics 57 ( 1 ) 36 - 48 2022.3

Estimation of lung cancer deaths attributable to indoor radon exposure in upper northern Thailand

Somsunun Kawinwut, Prapamontol Tippawan, Pothirat Chaicharn, Liwsrisakun Chalerm, Pongnikorn Donsuk, Fongmoon Duriya, Chantara Somporn, Wongpoomchai Rawiwan, Naksen Warangkana, Autsavapromporn Narongchai, Tokonami Shinji

SCIENTIFIC REPORTS 12 ( 1 ) 5169 2022.3

High Indoor Radon Concentration Observed in Yomitan-son,Okinawa Prefecture, Southwestern Part of Japan

Furukawa Masahide, Omori Yasutaka, Masuda Nagi, Tamakuma Yuki, Suzuki Takahito, Obata Mika, Shingaki Reina, Nakasone Syunya, Ishimine Akinobu, Nakamura Kaori, Shiroma Yoshitaka, Hosoda Masahiro, Akata Naofumi, Tokonami Shinji

Radiation Environment and Medicine 11 ( 1 ) 16 - 20 2022.2

Rapid Chemical Separation Protocol for Optimized 90Sr Determination by ICP-MS in Water Samples for Radiological Incident

Tazoe Hirofumi, Tomisaka Yuto, Akata Naofumi, Russell Ben, Ivanov Peter, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 11 ( 1 ) 7 - 15 2022.2

222Rn and 226Ra Concentrations in Spring Water and Their Dose Assessment Due to Ingestion Intake

Ryohei Yamada, Masahiro Hosoda, Tomomi Tabe, Yuki Tamakuma, Takahito Suzuki, Kevin Kelleher, Takakiyo Tsujiguchi, Yoshiki Tateyama, Eka Djatnika Nugraha, Anna Okano, Yuki Narumi, Chutima Kranrod, Hirofumi Tazoe, Kazuki Iwaoka, Yumi Yasuoka, Naofumi Akata, Tetsuya Sanada, Shinji Tokonami

International Journal of Environmental Research and Public Health 19 ( 3 ) 1758 - 1758 2022.2

Reassessment of the radiocesium resuspension flux from contaminated ground surfaces in eastern Japan

Kajino Mizuo, Watanabe Akira, Ishizuka Masahide, Kita Kazuyuki, Zaizen Yuji, Kinase Takeshi, Hirai Rikuya, Konnai Kakeru, Saya Akane, Iwaoka Kazuki, Shiroma Yoshitaka, Hasegawa Hidenao, Akata Naofumi, Hosoda Masahiro, Tokonami Shinji, Igarashi Yasuhito

ATMOSPHERIC CHEMISTRY AND PHYSICS 22 ( 2 ) 783 - 803 2022.1

Heavy Metal Assessments of Soil Samples from a High Natural Background Radiation Area, Indonesia

Eka Djatnika Nugraha, June Mellawati, Wahyudi, Chutima Kranrod, Makhsun, Hirofumi Tazoe, Haeranah Ahmad, Masahiro Hosoda, Naofumi Akata, Shinji Tokonami

Toxics 10 ( 1 ) 39 - 39 2022.1

青森県六ヶ所村におけるヨウ素-129降下量の季節変動とその要因

長谷川英尚, 柿内秀樹, 赤田尚史, 床次眞司

アイソトープ・放射線研究発表会 2 ( 0 ) 12 2022

Heavy Metal Assessments of Soil Samples from a High Natural Background Radiation Area, Indonesia

床次眞司

Toxics 10 39 2022

Determination of Activity Concentration of Natural Radionuclides and Radiation Hazards’ Assessment of Building Materials in High Background Radiation Areas of Homa and Ruri, Kenya

Willis Otieno Gor Odongo, Margaret Chege, Nadir Hashim, Shinji Tokonami, Kranrod Chutima, Charles Rotich

The Scientific World Journal 2021 1 - 7 2021.12

A Preliminary Study of Radon Equilibrium Factor at a Tourist Cave in Okinawa, Japan

Ryohei Yamada, Yuki Tamakuma, Takahito Suzuki, Shunya Nakasone, Yoshitaka Shiroma, Masahide Furukawa, Hiroki Hashimoto, Masahiro Hosoda, Naofumi Akata, Shinji Tokonami

Atmosphere 12 ( 12 ) 1648 - 1648 2021.12

Key outcome summaries of the scientific programme of the IRPA15 congress

Wolfgang Weiss, Sisko Salomaa, Marina Di Giorgio, Mike Boyd, Jim Thurston, John Takala, Shinji Tokonami, Ludovic Vaillant, Roger Coates, Jong Kyung Kim

Journal of Radiological Protection 41 ( 4 ) S490 - S505 2021.12

The First Attempt to Reevaluate Radon and Thoron Exposure in Gansu Province Study Using Radon-Thoron Discriminating Measurement Technique.

Hiromi Kudo, Shinji Yoshinaga, Xiaoliang Li, Shujie Lei, Shouzhi Zhang, Quanfu Sun, Chihaya Koriyama, Suminori Akiba, Shinji Tokonami

Frontiers Public Health 9 764201 2021.11

A Potential Serum Biomarker for Screening Lung Cancer Risk in High Level Environmental Radon Areas: A Pilot Study

Narongchai Autsavapromporn, Pitchayaponne Klunklin, Imjai Chitapanarux, Churdsak Jaikang, Busyamas Chewaskulyong, Patumrat Sripan, Masahiro Hosoda, Shinji Tokonami

Life 2021 ( 11 ) 1273 2021.11

Radon and Thoron Exhalation Rates from Earthen Building Materials Used in High Background Radiation Areas of Homa and Ruri, Kenya

Willis Otieno Gor Odongo, Margaret Chege, Shinji Tokonami, Nadir Hashim, Chutima Kranrod, Catherine Nyambura

Radiation Protection Dosimetry 197 ( 1 ) 12 - 18 2021.11

Car-borne survey for a black shale area and influence of snowfall on absorbed dose rate in air of a coastal area

Yuki Tamakuma, Masahiro Hosoda, Yasutaka Omori, Hiroyuki Nagahama, Tetsuo Ishikawa, Michikuni Shimo, Shinji Tokonami

Radiation Environment and Medicine 10 ( 2 ) 96 - 101 2021.8

Car-borne Survey for a Black Shale Area and Influence of Snowfall on Absorbed Dose Rate in Air of a Coastal Area

Tamakuma Yuki, Hosoda Masahiro, Omori Yasutaka, Nagahama Hiroyuki, Ishikawa Tetsuo, Shimo Michikuni, Tokonami Shinji

Radiation Environment and Medicine 10 ( 2 ) 96 - 101 2021.8

Researches and Activities on Radon/Thoron and NORM for Past 30 Years in Japan

Iimoto Takeshi, Tokonami Shinji, Yonehara Hidenori, Furuta Sadaaki, Shimo Michikuni

Radiation Environment and Medicine 10 ( 2 ) 55 - 66 2021.8

Researches and Activities on Radon/Thoron and NORM for Past 30 Years in Japan

Takeshi Iimoto, Shinji Tokonami, Hidenori Yonehara, Sadaaki Furuta, Michikuni Shimo

Radiation Environment and Medicine 10 ( 2 ) 55 - 66 2021.8

Measurement of NORM in Building Materials to Assess Radiological Hazards to Human Health and Develop the Standard Guidelines for Residents in Thailand: Case Study in Sand Samples Collected from Seven Northeastern Thailand Provinces

Phachirarat Sola, Uthaiwan Injarean, Roppon Picha, Chutima Kranrod, Chunyapuk Kukusamude, Shinji Tokonami

Atmosphere 12 ( 8 ) 1024 - 1024 2021.8

Characterization of Commercially Available Active-Type Radon–Thoron Monitors at Different Sampling Flow Rates

Yuki Tamakuma, Chutima Kranrod, Yuto Jin, Hiromu Kobayashi, Eka Djatnika Nugraha, Aoi Sanpei, Mizuki Kiso, Hiroki Hashimoto, Ryoju Negami, Masahiro Hosoda, Shinji Tokonami

Atmosphere 12 ( 8 ) 971 - 971 2021.7

A unique high natural background radiation area in Indonesia: a brief review from the viewpoint of dose assessments

Eka Djatnika Nugraha, Masahiro Hosoda, Yuki Tamakuma, Chutima Kranrod, June Mellawati, Naofumi Akata, Shinji Tokonami

Journal of Radioanalytical and Nuclear Chemistry 330 ( 3 ) 1437 - 1444 2021.7

Comprehensive exposure assessments from the viewpoint of health in a unique high natural background radiation area, Mamuju, Indonesia

Eka Djatnika Nugraha, Masahiro Hosoda, Kusdiana, Untara, June Mellawati, Nurokhim, Yuki Tamakuma, Abarrul Ikram, Mukh Syaifudin, Ryohei Yamada, Naofumi Akata, Michiya Sasaki, Masahide Furukawa, Shinji Yoshinaga, Masaru Yamaguchi, Tomisato Miura, Ikuo Kashiwakura, Shinji Tokonami

Scientific reports 11 ( 1 ) 1478 2021.7

Support activities in Namie Town, Fukushima undertaken by Hirosaki University

Shinji Tokonami, Tomisato Miura, Naofumi Akata, Hirofumi Tazoe, Masahiro Hosoda, Kranrod Chutima, Hiromi Kudo, Koya Ogura, Yohei Fujishima, Yuki Tamakuma, Mayumi Shimizu, Kazutaka Kikuchi, Ikuo Kashiwakura

Annals of the ICRP 50 ( 1_suppl ) 014664532110068 - 014664532110068 2021.6

Simulation study on radiation exposure of emergency medical responders from radioactively contaminated patients

Takakiyo Tsujiguchi, Yoko Suzuki, Mizuki Sakamoto, Kazuki Narumi, Katsuhiro Ito, Hiroshi Yasuda, Shinji Tokonami, Ikuo Kashiwakura

Scientific Reports 11 ( 1 ) 6162 2021.3

210Pb and Major Ion Concentrations in Aerosols Collected in Qingdao, a Seaside Area of China

Oumar Bobbo Modibo, Shinji Tokonami, Masahiro Hosoda, Yuki Tamakuma, Hu Jun, Miklós Hegedűs, Eka Djatnika Nugraha, Saïdou, Hirofumi Tazoe, Naofumi Akata, Yutaka Kanai, Fumitaka Yanagisawa, Renjian Zhang

Radiation Environment and Medicine 10 ( 1 ) 18 - 25 2021.2

Estimation of Annual Effective Dose in Namie Town, Fukushima Prefecture due to Inhalation of Radon and Thoron Progeny

Thamaborn Ploykrathok, Koya Ogura, Mayumi Shimizu, Masahiro Hosoda, Yoshitaka Shiroma, Hiromi Kudo, Yuki Tamakuma, Shinji Tokonami

Radiation Environment and Medicine 10 ( 1 ) 9 - 17 2021.2

Long-Term Measurements of Radon and Thoron Exhalation Rates from the Ground Using the Vertical Distributions of Their Activity Concentrations

Oumar Bobbo Modibo, Yuki Tamakuma, Takahito Suzuki, Ryohei Yamada, Weihai Zhuo, Chutima Kranrod, Kazuki Iwaoka, Naofumi Akata, Masahiro Hosoda, Shinji Tokonami

International Journal of Environmental Research and Public Health 2021 ( 18 ) 978 - 1489 2021.2

Evaluation of the Influence of Thoron on Portable Radon Measurement Devices

Kazuki Iwaoka, Ryoju Negami, Yuki Tamakuma, Masahiro Hosoda, Lorna Jean, H. Palad, Shinji Tokonami, Chitho P. Feliciano, Reiko Kanda

Philippine Journal of Science 150 ( 1 ) 257 - 261 2021.2

Discriminative Measurement of Absorbed Dose Rates in Air from Natural and Artificial Radionuclides in Namie Town, Fukushima Prefecture

Koya Ogura, Masahiro Hosoda, Yuki Tamakuma, Takahito Suzuki, Ryohei Yamada, Ryoju Negami, Takakiyo Tsujiguchi, Masaru Yamaguchi, Yoshitaka Shiroma, Kazuki Iwaoka, Naofumi Akata, Mayumi Shimizu, Ikuo Kashiwakura, Shinji Tokonami

International Journal of Environmental Research and Public Health 18 ( 3 ) 978 - 978 2021.1

Radon Activity Concentrations in Natural Hot Spring Water: Dose Assessment and Health Perspective

Eka Djatnika Nugraha, Masahiro Hosoda, June Mellawati, Untara Untara, Ilsa Rosianna, Yuki Tamakuma, Oumar Bobbo Modibo, Chutima Kranrod, Kusdiana Kusdiana, Shinji Tokonami

International Journal of Environmental Research and Public Health 2021 ( 18 ) 920 - 920 2021.1

A unique high natural background radiation area – Dose assessment and perspectives

Masahiro Hosoda, Eka Djatnika Nugraha, Naofumi Akata, Ryohei Yamada, Yuki Tamakuma, Michiya Sasaki, Kevin Kelleher, Shinji Yoshinaga, Takahito Suzuki, Chanis Pornnumpa Rattanapongs, Masahide Furukawa, Masaru Yamaguchi, Kazuki Iwaoka, Tetsuya Sanada, Tomisato Miura, Kusdiana, Dadong Iskandar, Eko Pudjadi, Ikuo Kashiwakura, Shinji Tokonami

Science of The Total Environment 750 142346 - 142346 2021.1

A simple technique for measuring the activity size distribution of radon and thoron progeny aerosols

Chutima Kranrod, Supitcha Chanyotha, Shinji Tokonami, Tetsuo Ishikawa

Journal of Envronmental Radioactivity 229-230 106506 - 106506 2021.1

Lens opacity prevalence among the residents in high natural background radiation area in Yangjiang, China

Yinping Su, Yan Wang, Shinji Yoshinaga, Weiguo Zhu, Shinji Tokonami, Jianming Zou, Guangxiang Tan, Mayumi Tsuji, Suminori Akiba, Quanfu Sun

Journal of Radiation Research 62 ( 1 ) 67 - 72 2021.1

Temporal variation of iodine-129 deposition flux in Rokkasho Village and Hirosaki City, Aomori Prefecture, Japan

Hasegawa Hidenao, Kakiuchi Hideki, Akata Naofumi, Tokonami Shinji

Abstracts of Annual Meeting of the Geochemical Society of Japan 68 ( 0 ) 182 2021

Radon Activity Concentrations in Natural Hot Spring Water: Dose Assessment and Health Perspective

床次眞司

International Journal of Environmental Research and Public Health 18 920 2021

Estimation of Annual Effective Dose in Namie Town, Fukushima Prefecture due to Inhalation of Radon and Thoron Progeny

Ploykrathok Thamaborn, Ogura Koya, Shimizu Mayumi, Hosoda Masahiro, Shiroma Yoshitaka, Kudo Hiromi, Tamakuma Yuki, Tokonami Shinji

Radiation Environment and Medicine 10 ( 1 ) 9 - 17 2021

210Pb and Major Ion Concentrations in Aerosols Collected in Qingdao, a Seaside Area of China

Modibo Oumar Bobbo, Tokonami Shinji, Hosoda Masahiro, Tamakuma Yuki, Jun Hu, Hegedüs Miklós, Djatnika Nugraha Eka, Saïdou, Tazoe Hirofumi, Akata Naofumi, Kanai Yutaka, Yanagisawa Fumitaka, Zhang Renjian

Radiation Environment and Medicine 10 ( 1 ) 18 - 25 2021

Evaluation of the Influence of Thoron on Portable Radon Measurement Devices

岩岡和輝, 玉熊佑紀, 細田正洋, 床次眞司

Philippine Journal of Science 150 257 - 261 2021

Regulation of Antioxidant Stress-Responsive Transcription Factor Nrf2 Target Gene in the Reduction of Radiation Damage by the Thrombocytopenia Drug Romiplostim

Chiba Akane, Kawabata Nanami, Yamaguchi Masaru, Tokonami Shinji, Kashiwakura Ikuo

Biological and Pharmaceutical Bulletin 43 ( 12 ) 1876 - 1883 2020.12

Characteristics of Thoron (220Rn) and Its Progeny in the Indoor Environment

Shinji Tokonami

International Journal of Environmental Research and Public Health 17 ( 23 ) 8769 - 8769 2020.11

An Improved Passive CR-39-Based Direct 222Rn/220Rn Progeny Detector

Jun Hu, Guosheng Yang, Chutima Kranrod, Kazuki Iwaoka, Masahiro Hosoda, Shinji Tokonami

International Journal of Environmental Research and Public Health 17 ( 22 ) 8569 - 8569 2020.11

Machine learning as a tool for analysing the impact of environmental parameters on the radon exhalation rate from soil

Masahiro Hosoda, Shinji Tokonami, Takahito Suzuki, Miroslaw Janik

Radiation Measurements 138 106402 - 106402 2020.11

Identifying indoor radon sources in Pa Miang, Chiang Mai, Thailand

Tarika Thumvijit, Supitcha Chanyotha, Sompong Sriburee, Pongsiri Hongsriti, Monruedee Tapanya, Chutima Kranrod, Shinji Tokonami

Scientific reports 10 ( 10 ) 17723 2020.10

Lens opacity prevalence among the residents in high natural background radiation area in Yangjiang, China.

Yinping Su, Yan Wang, Shinji Yoshinaga, Weiguo Zhu, Shinji Tokonami, Jianming Zou, Guangxiang Tan, Mayumi Tsuji, Suminori Akiba, Quanfu Sun

Journal of Radiation Research rraa073 2020.10

Natural Radioactivity of Laterite and Volcanic Rock Sample for Radioactive Mineral Exploration in Mamuju, Indonesia

Ilsa Rossianna、Eka Djatnika Nugraha, Heri Syaeful, Sugili Putra, Masahiro Hosoda, Naofumi Akata, Shinji Tokonami

Geosciences 10 ( 10 ) 376 - 376 2020.9

A Comparative Study of the Outdoor Absorbed Dose Rate in Air by In-situ and Soil-sampling-based Measurement Methods

Kranrod Chutima, Chanyotha Supitcha, Pengvanich Phongphaeth, Kritsananuwat Rawiwan, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 9 ( 2 ) 98 - 104 2020.8

Environmental Monitoring of 134Cs and 137Cs Levels in Namie Town in 2018 and 2019

Hegedűs Miklós, Ploykrathok Thamaborn, Shiroma Yoshitaka, Iwaoka Kazuki, Yamada Ryohei, Tsujiguchi Takakiyo, Yamaguchi Masaru, Suzuki Takahito, Ogura Koya, Tamakuma Yuki, Tazoe Hirofumi, Akata Naofumi, Hosoda Masahiro, Kashiwakura Ikuo, Tokonami Shinji

Radiation Environment and Medicine 9 ( 2 ) 70 - 78 2020.8

Dose Assessment of Radium-226 in Drinking Water from Mamuju, a High Background Radiation Area of Indonesia

Nugraha Eka Djatnika, Hosoda Masahiro, Kusdiana, Winarni Ilma D, Prihantoro Ariska, Suzuki Takahito, Tamakuma Yuki, Akata Naofumi, Tokonami Shinji

Radiation Environment and Medicine 9 ( 2 ) 79 - 83 2020.8

An Alternative Approach to Background Radiation Monitoring Using Smartphone-coupled Personal Dosimeter POLISMART in Shimokita Peninsula, Japan

Swee Ting Goh Valerie, Yamamoto Yaeko, Mariya Yasushi, Nakamura Toshiya, Wojcik Andrzej, Tokonami Shinji, Miura Tomisato

Radiation Environment and Medicine 9 ( 2 ) 84 - 92 2020.8

Caesium Retention Characteristics of Knifc–Pan Resin from River Water

Miklós Hegedűs, Hirofumi Tazoe, Guosheng Yang, Yuki Tamakuma, Masahiro Hosoda, Naofumi Akata, Shinji Tokonami

Radiation Protection Dosimetry 190 ( 3 ) 320 - 323 2020.8

Machine learning as a tool for analyzing the impact of environmental parameters on the radon exhalation rate from soil

Masahiro Hosoda, Shinji Tokonami, Takahito Suzuki, Miroslaw Janik

Radiation Measurements 138 ( 2020 ) 106402 2020.8

Passive-Type Radon Monitor Constructed Using a Small Container for Personal Dosimetry

Yuki Tamakuma, Chutima Kranrod, Takahito Suzuki, Yuki Watanabe, Thamaborn Ploykrathok, Ryoju Negami, Eka Djatnika Nugraha, Kazuki Iwaoka, Mirosław Janik, Masahiro Hosoda, Shinji Tokonami

International Journal of Environmental Research and Public Health 2020 17 ( 17 ) 5660 2020.8

A comparative Study of the Outdoor Absorbed Dose Rate in Air by In-situ and Soil-sampling-based Measurement Methods

Chutima Kranrod, Supitcha Chanyotha, Phongphaeth Pengvanich, Rawiwan Kritsananuwat, Masahiro hosoda, Shinji Tokonami

Radiation Environment and Medicine 2020 9 ( 2 ) 98 - 104 2020.8

Assessment of Radiation Dose from the Consumption of Bottled Drinking Water in Japan

Aoife Kinahan, Masahiro Hosoda, Kevin Kelleher, Takakiyo Tsujiguchi, Naofumi Akata, Shinji Tokonami, Lorraine Currivan, Luis León Vintró

International Journal of Environmental Research and Public Health 2020 ( 17 ) 4992 2020.7

Assessment of Radiation Dose from the Consumption of Bottled Drinking Water in Japan

Aoife Kinahan, Masahiro Hosoda, Kevin Kelleher, Takakiyo Tsujiguchi, Naofumi Akata, Shinji Tokonami, Lorraine Currivan, Luis León Vintró

International Journal of Environmental Research and Public Health 17 ( 14 ) 4992 - 4992 2020.7

Investigation of local governments’ preparation for evacuation in nuclear emergency in Japan

M. Sakamoto, T. Tsujiguchi, T. Koiwa, K. Ogura, M. Yamaguchi, K. Ito, K. Yamanouchi, H. Yasuda, S. Tokonami, I. Kashiwakura

Radioprotection 55 ( 3 ) 237 - 246 2020.7

Importance of Discriminative Measurement for Radon Isotopes and Its Utilization in the Environment and Lessons Learned from Using the RADUET Monitor

Chutima Kranrod, Yuki Tamakuma, Masahiro Hosoda, Shinji Tokonami

International Journal of Environmental Research and Public Health 17 ( 11 ) 4141 - 4141 2020.6

Environmental Monitoring of 134Cs and 137Cs Levels in Namie Town in 2018 and 2019

Miklos Hegedus, Thamaborn Ploykrathok, Yoshitaka Shiroma, Kazuki Iwaoka, Ryohei Yamada, Takakiyo Tsujiguchi, Masaru YamaguchiTakahito Suzuki, Koya Ogura, Yuki Tamakuma, Hirofumi Tazoe, Naofumi Akata, Masahiro Hosoda, Ikuo Kashiwakura, Shinji Tokonami

Radiation Environment and Medicine 2020 9 ( 2 ) 70 - 78 2020.5

Impact of Wind Speed on Response of Diffusion-Type Radon-Thoron Detectors to Thoron

Yasutaka Omori, Yuki Tamakuma, Eka Djatnika Nugraha, Takahito Suzuki, Miki Arian Saputra, Masahiro Hosoda, Shinji Tokonami

International Journal of Environmental Research and Public Health 13 ( 9 ) 3178 - 3178 2020.5

Environmental Monitoring of 134Cs and 137Cs Levels in Namie Town in 2018 and 2019

Radiation Environment and Medicine 2020 9 ( 2 ) 70 - 78 2020.5

Author Correction: Reconstruction of residents' thyroid equivalent doses from internal radionuclides after the Fukushima Daiichi nuclear power station accident.

Takashi Ohba, Tetsuo Ishikawa, Haruyasu Nagai, Shinji Tokonami, Arifumi Hasegawa, Gen Suzuki

Scientific reports 10 ( 1 ) 6262 - 6262 2020.4

Cancer and non-cancer health risks from carcinogenic heavy metal exposures in underground water from Kilimambogo, Kenya

Catherine Nyambura, Nadir Omar Hashim, Margaret Wairimu Chege, Shinji Tokonami, Felix Wanjala Omonya

Groundwater for Sustainable Development 10 100315 - 100315 2020.4

A comparative Study of the Outdoor Absorbed Dose Rate in Air by In-situ and Soil-sampling-based Measurement Methods

Chutima Kranrod, Supitcha Chanyotha, Phongphaeth Pengvanich, Rawiwan Kritsananuwat, Masahiro hosoda, Shinj Tokonami

Radiation environment and Medicine 2020 9 ( 2 ) 98 - 104 2020.4

Reconstruction of residents’ thyroid equivalent doses frpm internal radionuclides after the Fukushima Daiichi nuclear power station accident

Takashi Ohba, Tetsuo Ishikawa;, Haruyasu Nagai, Shinji Tokonami, Arifumi Hasegawa, Gen Suzuki

Scientific Reports 10 10 ( 1 ) 3639 - 3639 2020.2

Current Situation of Triage Methods for Exposed Patients in the Acute Phase of a Nuclear Disaster

Suzuki Yoko, Tsujiguchi Takakiyo, Sakamoto Mizuki, Ito Katsuhiro, Tokonami Shinji, Kashiwakura Ikuo

Radiation Environment and Medicine 9 ( 1 ) 41 - 45 2020.2

Lung Dose Estimation of 222Rn and 220Rn Progeny Based on IMBA Professional® Software

Hu Jun, Iwaoka Kazuki, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 9 ( 1 ) 21 - 27 2020.2

External Radiation Exposure to the Public Using Car-borne Survey Method in the Uranium and Thorium Bearing Region of Lolodorf, Cameroon

Bineng Guillaume Samuel, Saïdou, Hosoda Masahiro, Tchuente Siaka Yvette Flore, Akata Naofumi, Feutseu Talla Simplice, Ele Abiama Patrice, Tokonami Shinji

Radiation Environment and Medicine 9 ( 1 ) 13 - 20 2020.2

The importance of direct progeny measurements for correct estimation of inhalation dose due to radon and thoron

Saidou, Bineng Guillaume Samuel, Shinji Tokonami, Masahiro Hosoda, Tchuenete Siaka Yvette Flora, Hamadou Issa, Takahito Suzuki, Hiromi Kudo, Oumarou Bouba

Frontiers in Public Health, secyion Environmental Health 2020.2

The Importance of Direct Progeny Measurements for Correct Estimation of Effective Dose Due to Radon and Thoron

Bineng Guillaume Samuel, Saidou, Tokonami Shinji, Hosoda Masahiro, Siaka Yvette Flore Tchuente, Issa Hamadou, Suzuki Takahito, Kudo Hiromi, Bouba Oumarou

FRONTIERS IN PUBLIC HEALTH 8 17 2020.2

Dose Assessment of Radium-226 in Drinking Water from Mamuju, a High Background Radiation Area of Indonesia

Eka Djatnika Nugraha, Masahiro Hosoda, Kusdiana, Ilma D Winarni, Ariska Prihantoro, Takahito Suzuki, Yuki Tamakuma, Naofumi Akata, Shinji Tokonami

Radiation Environment and Medicine 2020 9 ( 2 ) 79 - 83 2020.2

Parameter sensitivity nalysis of the theoretical model of aCR-39-based direct 222Rn/220Rn progeny monitor

Jun Hu, Masahiro Hosoda, Shinji Tokonami

NUKLEONIKA 2020 65 ( 2 ) 95 - 98 2020.2

Dose Assessment of Radium-226 in Drinking Water from Mamuju, a High Background Radiation Area of Indonesia

Eka Djatnika Nugraha, Masahiro Hosoda, Kusdiana, Ilma D Winarni, Ariska Prihantoro, Takahito Suzuki, Yuki Tamakuma, Naofumi Akata, Shinji Tokonami

Radiation Environment and Medicine 2020 9 ( 2 ) 79 - 83 2020.2

Exposures from radon, thoron, and thoron progeny in high background radiation area in Takandeang, Mamuju, Indonesia

Miki Arian Saputra, Eka Djatnika Nugraha, Tri Purwanti, Rokhmat Arifianto, Roza Indra Laksmana, Richard p. Hutabarat, Masahiro Hosoda, Shinji Tokonami

NUKLEONIKA 2020 65 ( 2 ) 89 - 94 2020.1

Cesium concentrations in various environmental media at Namie, Fukushima

M. Hegedűs, Y. Shiroma, K. Iwaoka, M. Hosoda, T. Suzuki, Y. Tamakuma, R. Yamada, T. Tsujiguchi, M. Yamaguchi, K. Ogura, H. Tazoe, N. Akata, I. Kashiwakura, S. Tokonami

Journal of Radioanalytical and Nuclear Chemistry 323 ( 1 ) 197 - 204 2020.1

Dose Assessment of Radium-226 in Drinking Water from Mamuju, a High Background Radiation Area of Indonesia

床次眞司

Radiation Environment and Medicine 9 79 - 83 2020

The parameter sensitivity analysis of the theoretical model of a CR-39 based direct 220Rn/222Rn progeny monitor

床次眞司

Nukleonika journal - 2020

The parameter sensitivity analysis of the theoretical model of a CR-39 based direct 220Rn/222Rn progeny monitor

床次眞司

Nukleonika 65 95 - 98 2020

Lung dose esrimation of 222Rn and 220Rn progeny based on IMBA Professional Software

床次眞司

Radiation Environment and Medicine 9 21 - 27 2020

Exposures from radon, thoron, and thoron progeny in high background radiation area in Takandeang, Mamuju, Indonesia

床次眞司

Nukleonika 65 89 - 94 2020

Car-borne survey of natural background gamma radiation in western, eastern and southern Thailand.

Chutima Kranrod, Supitcha Chanyotha, Phongphaegh Pengvanich, Rawiwan Kritsananuwat, Thamaborn Ploykrathok, Phongyut Sriploy, Masahiro Hosoda, Shinji Tokonami

Radiation protection dosimetry 188 ( 2 ) 174 - 180 2019.12

Lung Dose Estimation of 222Rn and 220Rn Progeny Based on IMBA Professional Software

Jun Hu, Kazuki Iwaoka, Masahiro Hosoda and Shinji Tokonami.

Radiation Environment and Medicine 2020 9 ( 1 ) 21 - 27 2019.12

Comparison of Radon and Thoron Concentration Measuring Systems Among Asian Countries.

Janik M, Tokonami S, Iwaoka K, Karunakara N, Trilochana S, Mohan M.P., Kumara S, Yashodhara I, Zhao C, Tang F, He L, Chanyotha S, Kranrod C, Al-Azmi D, Kurihara O

Int J Environ Res Public Health 10 ( 16 ) 24 - 5019 2019.12

Lung Dose Estimation of( ) 222Rn and 220Rn Progeny Based on IMBA Professional Software

Jun Hu, Kazuki Iwaoka, Masahiro Hosoda, Shinji Tokonami

Radiation Environment and Medicine 2020 9 ( 1 ) 21 - 27 2019.12

Cesium concentrationsin various environmental media at Namie, Fukusjima

M.Hegedus, Y. Shiroma, K. Iwaoka, M. Hosoda, T. Suzuki, Y. Tamakuma, R. Yamada, T. Tsujiguchi, M. Yamaguchi, K. Ogura, H. Tazoe, N. Akata, I. Kashiwakura, S. Tokonami

Journal of Radioanalytical and Nuclear Chemistry (2019) 323 ( 1 ) 197 - 204 2019.11

External Radiation Exosure to the Public Using Car-borne Survey Method in the Uranium a d Thorium Bearing of Lolodorf, Cameroon

Guillaume Samuel Bineng, Saidou, Masahiro Hosoda, Yvette FloreTchuente Siaka, Naofumi Akata, Simplice Feutseu Talla, Patrice Ele Abiama, and Shinji Tokonami

Radiation Environment and Medicine 2020, 9 ( 1 ) 13 - 20 2019.11

External Radiation Exosure to the Public Using Car-borne Survey Method in the Uranium a d Thorium Bearing of Lolodorf, Cameroon

Guillaume Samuel Bineng, Saidou, Masahiro Hosoda, Yvette Flore Tchuente Siaka, Naofumi Akata, Simplice Feutseu Talla, Ele Abiama, Shinji Tokonami

Radiation Environment and Medicine 2020, 9 ( 1 ) 13 - 20 2019.11

NINTH INTERNATIONAL CONFERENCE ON HIGH LEVELS OF ENVIRONMENTAL RADIATION AREAS; FOR UNDERSTANDING CHRONIC LOW-DOSE-RATE RADIATION EXPOSURE HEALTH EFFECTS AND SOCIAL IMPACTS

Mehdi sohrabi, Ikuo Kashiwakura, Shinji Tokonami

Radiation Protection Dosimetry (2019) 184 ( 3-4 ) 275 - 276 2019.10

Occupational Natural Radiation Exposure at the Uranium Deposit of Kitongo, Cameroon

Oumar Bobbo Modibo, Saïdou, Ndjana Nkoulou Ii Joseph Emmanuel, Suzuki Takahito, Kudo Hiromi, Hosoda Masahiro, Owono Owono Luc Calvin, Tokonami Shinji

RADIOISOTOPES 68 ( 9 ) 621 - 630 2019.9

Absorbed Dose Rates in Air along the Roads in Quezon City

Kazuki Iwaoka, Lorna Jean H. Palad, Christopher O. Mendoza, Masahiro Hosoda, Paolo Tristan F. Cruz, Eliza B. Enriquez, Ryan Joseph Aniago, Chitho P. Feliciano, Shinji Tokonami, Reiko Kanda

Philippines. Philippine Jounal of Science 148 ( 3 ) 501 - 504 2019.9

Preliminary Radiological Survey on High Rare-earth Containing Area in San Vicente, Philippines

Kazuki Iwaoka, Lorna Jean, H. Palad, Christopher O. Mendoza, Fe M. Dela Cruz, Masahiro Hosoda, Shinji Tokonami, Eliza B. Enriquez, Chitho P. Feliciano, Reiko Kanda

Philippine Journal of Science 148 ( 3 ) 501 - 504 2019.9

210Po as a source of natural radioactivity incigarettes distributed in the Philippines

Kazuki Iwaoka, Eliza B. Enriquez, Kazuaki Yajima, Masahiro Hosodac, Shinji Tokonami, Hidenori Yonehara, Teofilo Y. Garcia, Reiko Kanda

Perspectives in Science ( 12 ) 2019.9

A portable radioactive plume monitor usinga silicon photodiode

Yuki Tamakuma, Ryohei Yamada, Kazuki Iwaoka, Masahiro Hosoda, Tomohiro Kuroki, Hiroyuki Mizuno, Koji Yamada, Masahide Furukawa, Shinji Tokonami

Perspectives in Science ( 12 ) 2019.9

Occupational Natural Radiation Exposure at the Uranium Deposit of Kitongo, Cameroon

Modibo Oumar Bobbo, Saïdou, Joseph, Emmanuel Ndjana, Nkoulou IL, Takahito Suzuki, Hiromi Kudo, Masahiro Hosoda, Luc Calvin, Owono Owono, Shinji Tokonami

Radioisotopes 68 ( 9 ) 621 - 630 2019.9

Simultaneous measurements of indoor radon and thoron and inhalation dose assessment in Douala City, Cameroon

Takoukam Soh, Serge Didier, Saïdou, Shinji Tokonami, Masahiro Hosoda, Takahito Suzuki, Hiromi Kudo, Oumarou Bouba

Isotopes in Environmental and Health Studies 55 ( 55 ) 499 - 510 2019.8

NATURAL RADIATION EXPOSURE TO THE PUBLIC IN MINING AND ORE BEARING REGIONS OF CAMEROON

Saïdou, Shinji Tokonami, Masahiro Hosoda, Ndjana Nkoulou, II Joseph Emmanuel, Naofumi Akata, Tchuente Siaka, Yvette Flore, Oumar Bobbo Modibo, Bineng Guillaume Samuel, Takoukam Soh, Serge Didier

Radiation Protection Dosimetry 184 ( 184 ) 391 - 396 2019.7

Natural radiation exposure to the public in the uranium bearing region of Poli, Cameroon: From radioactivity measurements to external and inhalation dose assessment

Saïdou, Tokonami Shinji, Masahiro Hosoda, Tchuente Siaka Yvette Flore, Ndjana Nkoulou Joseph Emmanuel II, Akata Naofumi, Oumar Bobbo Modibo, Penaye Joseph

Journal of Geochemical Exploration 2019.7

Absorbed Dose Rates in Air along the Roads in Quezon City, Philippines

Kazuki Iwaoka, Lorna Jean H. Palad, Christopher O. Mendoza,　Masahiro Hosoda, Paolo Tristan F. Cruz, Eliza B. Enriquez, Ryan Joseph Aniago, Chitho P. Feliciano, Shinji Tokonami, Reiko Kanda

Philippine Journal of Science 148 ( 2 ) 395 - 399 2019.6

Absorbed Dose Rates in Air along the Roads in Quezon City, Philippines

Kazuki Iwaoka, Lorna Jean, H. Palad, Christopher O. Mendoza, Masahiro Hosoda, Paolo Tristan, F. Cruz, Eliza B. Enriquez, Ryan Joseph Aniago, Chitho P. Feliciano, Shinji Tokonami, Reiko Kanda

148 ( 2 ) 395 - 399 2019.6

Radon and Thoron; Radioactive Gases Lurking in Earthen Houses in Rural Kenya

Margaret Chege, Nadir Hashim, Catherine Nyambura, Amidu Mustapha, Masahiro Hosada, Shinji Tokonami

Frontiers in Public Health 7 ( 113 ) 113 2019.5

Simultaneous indoor radon, thoron, and thoron progeny measurements in Betare-Oya gold mining areas, Eastern Cameroon

N.N. II J. Emmanuel, L.N. Engola, Saïdou, M. Hosoda, B. Daniel, T. Suzuki, H. Kudo, N. Kwato, M. Godfroy, S. Tokonami.

Radiat. Prot. Dosim. ncz026 2019.5

COMPARISON OF BACTERIAL FLORA IN RIVER SEDIMENTS FROM FUKUSHIMA AND AOMORI PREFECTURES BY 16S RDNA SEQUENCE ANALYSIS

K. Yamanouchi, T. Tsujiguchi, Y. Shiroma, T. Suzuki, Y. Tamakuma, M. Yamaguchi, Y. Sakamoto, M. Hegedu s, K. Iwaoka, M. Hosoda, I. Kashiwakura, T. Miura, S. Tokonami

Radiation Protection Dosimetry 184 ( 3-4 ) 504 - 509 2019.5

Characteristics of indoor radon and thoron concentrations in cave dwellings in Gansu province, China

A. Sorimachi, S. Tokonami, Y. Omori, M. Janik, K. Iwaoka, T. Ishikawa, Q. Sun

Protection Dosimetry (2019) 184 ( 3-4 ) 457 - 462 2019.5

EVALUATION OF A RADON AIR MONITOR IN THE MEASUREMENT OF RADON CONCENTRATION IN WATER IN COMPARISON WITH A LIQUID SCINTILLATION COUNTER

Shoko Higuchi, Yuuki Kamishiro, Maki Ishihara, Yumi Yasuoka, Yasunori Mori, Masahiro Hosoda, Kazuki Iwaoka, Shinji Tokonami, Rikiya Takahashi, Miroslaw Janik, Jun Muto, Hiroyuki Nagahama, Takahiro Mukai

Radiation Protection Dosimetry 184 ( 184 ) 426 - 429 2019.4

IDENTIFICATION OF NOVEL BIOMARKERS FOR LUNG CANCER RISK IN HIGH LEVELS OF RADON BY PROTEOMICS: A PILOT STUDY

N Autsavapromporn, N Dukaew, A Wongnoppavich, B Chewaskulyong, S Roytrakul, P Klunklin, K Phantawong, I Chitapanarux, P Sripun, R Kritsananuwat, S Amphol, C Pornnumpa, T Suzuki, H Kudo, M Hosoda, S Tokonami

Radiation Protection Dosimetry 184 ( 184 ) 496 - 499 2019.4

MEASUREMENT OF URANIUM IN URINE, HAIR AND NAILS IN SUBJECTS OF NISKA BANJA TOWN, A HIGH NATURAL BACKGROUND RADIATION AREA OF SERBIA

Z S Žunic, L Benedik, R Kritsananuwat, N Veselinovic, S Tokonami, H Arae, Z Stojanovska, S K Sahoo

Radiation Protection Dosimetry 184 ( 184 ) 319 - 323 2019.4

Evaluations of inventory and activity concentration of radiocesium in soil at a residential house 3 years after the Fukushima Nuclear accident,

M. Hosoda, W. Hozumi, N. Akata, A. Endo, K. Kelleher, K. Yamanouchi, Y. Imajo, T. Fukuhara, Y. Shiroma, K. Iwaoka, S. Tokonami

Radiat. Prot. Dosim 184 ( 184 ) 518 - 522 2019.4

Investigation of external radiation doses during residents‘ temporal stay to Namie Town, Fukushima Prefecture

T. Tsujiguchi, Y. Shiroma, T. Suzuki, Y. Tamakuma, M. Yamaguchi, K. Iwaoka, M. Hosoda, S. Tokonami, I. Kashiwakura

Radiat. Prot. Dosim 184 ( 184 ) 514 - 517 2019.4

Uranium, thorium and rare earth elements distribution in Fukushima soil samples

S. Kasar, S. K. Sahoo, H. Arae, S. Mishra, S. Tokonami, T. Aono

Protection Dosimetry (2019) 184 ( 184 ) 363 - 367 2019.4

Evaluation of a Surface Collection Efficiency and a Stability of Flow Rate for the Commercially Available Filters Used for Ambient Radioactive Aerosols

TAMAKUMA Yuki, YAMADA Ryohei, IWAOKA Kazuki, HOSODA Masahiro, TOKONAMI Shinji

Japanese Journal of Health Physics 54 ( 1 ) 5 - 12 2019.4

Comparative study on performance of various environmental radiation monitors

Y. Tamakuma, R. Yamada, T. Suzuki, T. Kuroki, R. Saga, H. Mizuno, H. Sasaki, K. Iwaoka, M. Hosoda, S. Tokonami

Radiat. Prot. Dosim. 184 ( 3-4 ) 307 - 310 2019.4

Annual effective dose assessment due to radon and thoron progenies in dwellings of Kilimambogo, Kenya

C. Nyambura, S. Tokonami, N.O. Hashim, M.W. Chege, T. Suzuki, H. Kudo, M. Hosoda

Radiat. Prot. Dosim 184 ( 3-4 ) 430 - 434 2019.4

DEVELOPMENT OF Calculation tool for respiratory tract deposition depending on aerosols particle distribution

K. Iwaoka, M. Hosoda, S. Tokonami, E.B. Enriquez, L.J.H. Palad, R. Kanda

Radiat. Prot. Dosim(2019). 184 ( 3-4 ) 388 - 390 2019.4

CHANGES OF ABSORBED DOSE RATE IN AIR BY CAR-BORNE SURVEY IN NAMIE TOWN, FUKUSHIMA PREFECTURE AFTER THE FUKUSHIMA DAIICHI NUCLEAR POWER PLANT ACCIDENT

Y. Shiroma, M. Hosoda, K. Iwaoka, M. Hegedus, H. Kudo, T Tsujiguchi, M. Yamaguchi, N. Akata, I. Kashiwakura, S. Tokonami

Radiation Protection Dosimetry 184 ( 3-4 ) 527 - 530 2019.4

Simultaneous indoor radon, thoron, and thoron progeny measurements in Betare-Oya gold mining areas, Eastern Cameroon

N.N. II, J. Emmanuel, L.N. Engola, Saïdou, M. Hosoda, B. Daniel, T. Suzuki, H. Kudo, N. Kwato, M. Godfroy, S. Tokonami

Radiat. Prot. Dosim. 185 ( 3 ) ncz026 - 401 2019.3

Study of Chemical Etching Conditions for Alpha-particle Detection and Visualization Using Solid State Nuclear Track Detectors

Yamada Ryohei, Odagiri Taiki, Iwaoka Kazuki, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 8 ( 1 ) 21 - 25 2019.2

Study of Chemical Etching Conditions for Alpha-particle Detectionand Visualization Using Solid State Nuclear Track Detectors

Ryohei Yamada1, Taiki Odagiri, Kazuki Iwaoka, Masahiro Hosoda, and Shinji Tokonami.

Radiation Environment and Medicine 2019 18 ( 1 ) 21 - 25 2019.2

Identification of novel biomarkers for early detection of lung cancer in high Radiation areas: A preliminary study on proteomic analysis

N. Autsavapromporn, N. Dukaew, A. Wongnoppavich, B. Chewaskulyong, S. Roytrakul, P. Klunklin, K. Phantawong, I. Chitapanarux, P. Sripun, R. Kritsananuwat, S. Amphol, C. Pornnumpa, T. Suzuki, H. Kudo, M. Hosoda, S. Tokonami

Radiat. Prot. Dosim. 2019.2

Evaluation of bacterial diversity in river sediment soil of Fukushima Prefecture by 16s RDNA sequence analysis

K. Yamanouchi, T. Tsujiguchi, Y. Shiroma, T. Suzuki, Y. Tamakuma, M. Yamaguchi, Y. Sakamoto, M. Hegedus, K. Iwaoka, M. Hosoda, I. Kashiwakura, T. Miura, S. Tokonami

Radiat. Prot. Dosim. 2019.2

Study of Chemical Etching Conditions for Alpha-particle Detectionand Visualization Using Solid State Nuclear Track Detectors

Ryohei Yamada, Taiki Odagiri, Kazuki Iwaoka, Masahiro Hosoda, Shinji Tokonami

Radiation Environment and Medicine 2019 18 ( 1 ) 21 - 25 2019.2

Comparative Study of Performance using Five Different Gamma-ray Spectrometers for Thyroid Monitoring under Nuclear Emergency Situations.

Masahiro Hosoda, Kazuki Iwaoka, Shinji Tokonami, Yuki Tamakuma, Yoshitaka Shiroma, Takahiro Fukuhara, Yusuke Imajyo, Jun Taniguchi, Naofumi Akata, Minoru Osanai, Takakiyo Tsujiguchi, Masaru Yamaguchi, Ikuo Kashiwakura

Health physics 116 ( 1 ) 81 - 87 2019.1

238Pu/(239+240)Pu activity ratio as an indicator of Pu originating from the FDNPP accident in the terrestrial environment of Fukushima Prefecture

R. Kierepko, S. K. Sahoo, M. Hosoda, S. Tokonami, A. Sorimachi, E. Kim, M. Ohno

J. Environ. Radioact., 196 133 - 140 2019.1

Natural radioactivity measurements and external dose estimation by car-borne survey in Douala city

S.D. Takoukam Soh, Saïdou, M. Hosoda, J.E. Ndjana Nkoulou II, N. Akata, O. Bouba1 and S. Tokonami

Radioprotection 2018 53 ( 4 ) 255 - 263 2018.11

Preliminary Development of Thoron Exposure System in the Philippines

Kazuki Iwaoka, Lorna Jean H. Palad, Eliza B. Enriquez, Fe M. dela Cruz, Christopher O. Mendoza, Juanario U. Olivares, Ryan Joseph Aniago, Christian L. dela Sada, Masahiro Hosoda, Shinji Tokonami

SCIENCE DILIMAN (JULY-DECEMBER 2018) 30 ( 2 ) 87 - 95 2018.11

Short Telomere Length as a Biomarker Risk of Lung Cancer Development Induced by High Radon Levels: A Pilot Study,

(41) Narongchai Autsavapromporn, Pitchayaponne Klunklin, Chalat Threeratana, Wirote Tuntiwechapikul, Masahiro Hosoda and Shinji Tokonami.

Int. J. Environ. Res. Public Health 2018 15 ( 10 ) 2152 2018.9

Thyroid equivalent doses for evacuees and radiological impact from the Fukushima nuclear accident

S. Tokonami, M. Hosoda

Radiation Measurements 119 74 - 79 2018.9

Mental and physical stress of the Fukushima disaster evacuees as estimated by the measurement of urinary 8‑hydroxy‑2'‑deoxyguanosine

Yasuyo Fukushi, Ayumi Nakamura, Chieko Itaki, Shinji Tokonami, Masatoshi Yamada and Yasushi Mariya.

Experimental and Therapeutic Medicine 16 ( 91 ) 231 - 235 2018.5

Numerical modeling of the sources and behaviors of 222Rn, 220Rn and their progenies in the indoor environment—A review.

Jun Hu, Guosheng Yang, Miklos Hegedus, Kazuki Iwaoka, Masahiro Hosoda, Shinji Tokonami.

Journal of Environmental Radioactivity 189 ( 2018 ) 40 - 47 2018.3

Development of radon and thoron exposure systems in Hirosaki University.

Chanis Pornnumpa, Yui Oyama, Kazuki Iwaoka, Masahiro Hosoda, Shinji Tokonami.

Radiation Environment and Medcine 7 ( 1 ) 13 - 20 2018.2

Development of Radon and Thoron Exposure Systems at Hirosaki University

Chanis Pornnumpa, Yui Oyama, Kazuki Iwaoka, Masahiro Hosoda, Shinji Tokonami

Radiation Environment and Medicine 7 ( 1 ) 13 - 20 2018.2

Air Absorbed Dose Rate Measurements and External Dose Assessment

Louis Ngoa Engola, Joseph Emmanuel Ndjana, Nkoulou II, Masahiro Hosoda, Daniel Bongue, Saidou, Naofumi Akata, Rosalie Koukong Heya, Mo?se Godfroy, Kwato Njock, Shinji Tokonami

Japanese Journal of Health Physics 53 ( 1 ) 200 - 209 2018.1

Development of Rapid Sampling System of Atmospheric Water Vapor for Tritium Measurement

Naofumi AKATA, Hideki KAKIUCHI, Masahiro TANAKA, Nagayoshi SHIMA, Yoshitaka SHIROMA, Shinji TOKONAMI, Masahiro HOSODA, Yoshio ISHIKAWA, Masahide FURUKAWA, Tetsuya SANADA

Plasma and Fusion Research 13 ( 0 ) 3405064 - 3405064 2018

Air Absorbed Dose Rate Measurements and External Dose Assessment by Car-Borne Survey in the Gold Mining Areas of Betare-Oya, Eastern-Cameroon

NGOA ENGOLA Louis, NDJANA NKOULOU II Joseph Emmanuel, HOSODA Masahiro, BONGUE Daniel, SAÏDOU, AKATA Naofumi, KOUKONG HEYA Rosalie, KWATO NJOCK Moïse Godfroy, TOKONAMI Shinji

Japanese Journal of Health Physics 53 ( 1 ) 5 - 11 2018

バブリング法による水中ラドン濃度測定について

神代悠希、石原万己、藤井さとみ、安岡由美、細田正洋、岩岡和輝、床次眞司、Miroslaw Janik、武藤潤、長濱裕幸, 向高弘

Proceedings of the 18th Workshop on Environmental Radioactivity 2017 ( 6 ) 333 - 338 2017.12

Investigation on natural radioactivity in a monazite processing plant in Japan

Kazuki Iwaoka, Kazuaki Yajima, Toshikazu Suzuki, Hidenori Yonehara, Masahiro Hosoda, Shinji Tokonami, Reiko Kanda.

Health Physics 113 ( 3 ) 220 - 224 2017.9

Installation of system at Hirosaki University, Japan, for Estimating Radionuclide Atmospersion Dispersion Levels

Kazuki Iwaoka, Masahiro Hosoda, Shinji Tokonami

Radiation Environment and Medicine 16 ( 2 ) 104 - 107 2017.8

Measurement system for alpha and beta emitters with continuous air sampling under different exposure situations

Ryohei Yamada, Yuki Tamakuma, Kazuki Iwaoka, Masahiro Hosoda, Yoshitaka Shiroma,　Naofumi Akata, Hiroyuki Mizuno, Kouji Yamada, Tomohiro Kuroki, Shinji Tokonami

Applied Radiation and Isotopes ( 126 ) 79 - 8 2017.8

Measurements of radon exhalation rate in NORM used as consumer products in Japan.

Kazuki Iwaoka, Masahiro Hosoda, Kazuaki Yajima, Shinji Tokonami

Applied Radiation and Isotopes ( 126 ) 304 - 306 2017.8

Remediation of Radiocesium-137 Affected Soil Using Napiergrass Under Different Planting Density and Cutting Frequency Regimes.

Dong-Jin Kang, Yasuyuki Ishii, Hirofumi Tazoe, Katsunori Isobe, Masao Higo, Masahiro Hosoda, Masatoshi Yamada, Shinji Tokonami.

Water, Air, & Soil Pollution ( 2017 ) 228 - 268 2017.8

Utilization of Monte Carlo Particle Transport Simulation Code onRadiation Emergency Medicine at Hirosaki University.

Kazuki Iwaoka, Masahiro Hosoda, Takakiyo Tsujiguchi, Minoru Osanai, Shinji Tokonami, Ikuo Kashiwakura

Radiation Environment and Medicine 6 ( 2 ) 108 - 111 2017.6

福島県の里山に大気沈着した放射性Csの長期変動

金野俊太郎，大河内博，勝見尚也，緒方裕子，片岡淳，岸本彩，岩本康弘，反町篤行，床次眞司

分析化学会誌 66 ( 3 ) 17 2017.3

放射線リスクの正しい理解と知識の向上のための消防職員に対する意識調査

葛西幸彦, 工藤ひろみ, 細田正洋, 岩岡和輝, 床次眞司.

保健物理 52 ( 2 ) 55 - 60 2017.3

Characteristic of thoron (Rn-220) in environment

Masahiro Hosoda, Hiromi Kudo, Kazuki Iwaoka, Ryohei Yamada, Takahito Suzuki, Yuki Tamakuma, Shinji Tokonami

APPLIED RADIATION AND ISOTOPES 120 ( 120 ) 7 - 10 2017.2

Comparison of Natural Radioactivity of Commonly Used Fertilizer Materials in Egypt and Japan

Nabil M. Hassan, Byung-Uck Chang, Shinji Tokonami

JOURNAL OF CHEMISTRY 2017 9182768 2017

Consideration on the necessity of tritium limit in foods in Japan－Perspective on the current food regulation

Kazuki Iwaoka, Naofumi Akata, Masahiro Hosoda, Shinji Tokonami

Plasma and Fision Research 12 ( 0 ) 1305031 - 1305031 2017

Radiation dose due to radon and thoron progeny inhalation in high-level natural radiation areas of Kerala, India

Yasutaka Omori, Shinji Tokonami, Sarata Kumar Sahoo, Tetsuo Ishikawa, Athuyuki Sorimachi, Masahiro Hosoda, Hiromi Kudo, Chanis Pornnumpa, Raghu Ram K Nair, Padmavaty Amma Jayalekshmi, Paul Sebastian and Suminori Akiba

Journal of Radiological Protection 37 ( 1 ) 111 - 126 2016.12

Temporal variation of post-accident atmospheric 137Cs in an evacuated area of Fukushima Prefecture: Size-dependent behaviors of 137Cs-bearing particles

Shinya Ochiai, Hidenao Hasegawa, Hideki Kakiuchi, Naofumi Akata, Shinji Ueda, Shinji Tokonami

Journal of Environmental Radioactivity ( 165 ) 131 - 139 2016.12

International standards on food and environmental radioactivity measurement for radiological protection : status and perspectives

D. Calmet, R. Ameon, A. Bombard, S. Brun, F. Byrde, J. Chen, J.-M. Duda, M. Forte, M. Fournier,A. Fronka, T. Haug,M. Herranz, A. Husain, S. Jerome,M. Jiranek, S. Judge, S. B. Kim,P. Kwakman, J. Loyen,M. LLaurado, R.Michel, D. Porterfield, A. Ratsirahonana, A. Richards,K. Rovenska, T. Sanada, C. Schuler, L. Thomas, S. Tokonami, A. Tsapalov and T. Yamada

Radiation Protection Dosimetry 173 ( 1-3 ) 55 - 562 2016.11

Early intake of radiocesium by residents living near the tepco Fukusima Dai-ichi Nuclear Power Plant after the accident. PART 1: Internal doses based on Whole-Body measurements by NIRS

Eunjoo Kim, Osamu Kurihara, Naoaki Kunishima, Takashi Nakano, Kotaro Tani, Misao Hachiya, Takumaro Momose, Tetsuo Ishikawa, Shinji Tokonami, Masahiro Hosoda, and Makoto Akashi

Health Physics 111 ( 5 ) 451 - 464 2016.11

Vertical migration of radio-caesium derived fromthe Fukushima Dai-ichi Nuclear Power Plant accident in undisturbed soils of grassland and forest

S. Mishra, S.K. Sahoo, P. Bossewc, A. Sorimachi, S. Tokonami

Journal of Geochemical Exploration ( 169 ) 163 - 186 2016.10

Radon testing in air using a PICO-RAD collector measured with a simplified liquid scintillation counter

Arai Y, Wakabayashi A, Yasuoka Y, Iwaoka K, Tokonami S, Janik M, Fukuhori N, Mukai T.

Proceedings of the 17th Workshop on Environmental Radioactivity KEK proceedings ; 2016-8 233 - 238 2016.10

Investigation of Absorbed Dose Rate in Air by a Car-borne Survey in Namie Town, Fukusima Prefecture

Chanis Pornnumpa, Kazuki Iwaoka, Naofumi Akata, Masahiro Hosoda, Atsuyuki Sorimachi and Shinji Tokonami

Japanese Journal of Health Physics 51 ( 2 ) 115 - 121 2016.8

一般市民の放射線の基礎知識に関するアンケート調査―放射線の基礎知識の講演会に参加した浪江町民と青森県3市民の比較から―

工藤ひろみ, 床次眞司, 細田正洋, 岩岡和輝, 葛西幸彦

保健物理 51 ( 2 ) 92 - 97 2016.8

Dose estimation derived from the exposure to radon, thoron and their progeny in the indoor environment

R. C. Ramola, Mukesh Prasad, Tushar Kandari, Preeti Pant, Peter Bossew,Rosaline Mishra & S. Tokonami

Scientific Reports 6 ( 2016 ) 31061 2016.8

Natural radiation exposure to the public in the uranium bearing region of Poli, Cameroon: From radioactivity measurements to external and inhalation dose assessment

Saïdou, Tokonami Shinji, Masahiro Hosoda, Tchuente Siaka, Yvette Flore, Ndjana Nkoulou Joseph, Emmanuel II, Akata Naofumi, Oumar Bobbo Modibo, Penaye Joseph

Journal of Geochemical Exploration 205 ( 205 ) 106350 2016.7

Long-term measurements of residential radon, thoron, and thoron progeny concentraions around the Chhatrapur placer deposit, a high background radiation area in Odisha, India

Yasutaka Omori, Ganesh Prasad, Atsuyuki Sorimachi, Sarata Kumar Sahoo, Tetsuo Ishikawa, Devulapalli Vidya Sagar, Rakesh Chand Ramola, Shinji Tokonami

Journal of Environmental Radioactivity ( 162-163 ) 371 - 378 2016.6

Strontium-90 activity concentrateon in soil samples from the exclusion zone of Fukushima daiichi nuclear power plant

Sarata K. Sahoo, Norbert Kavasi, Atsuyuki Sorimachi, Hideki Arae, Shinji Tokonami, Jerzy W. Mietelski, Edyta Lokas and Satoshi Yoshida

Scientific Reports 6 23925 2016.4

Natural radioactivity level and elemental composition of soil samples from a high background radiation area on eastern coast of India (Odisha)

S.K. Sahoo, R. Kierepko, A. Sorimachi, Y. Omori, T. Ishikawa, S. Tokonami, G. Prasad, G.S. Gusain and R. C. Ramola

Radiation Protection Dosimetry (2016) 171 ( 2 ) 172 - 178 2016.3

Natural radiation survey in the uranium and thorium bearing regions of Cameroon

Saïdou, Shinji Tokonami and Ele Abiama Patrice.

Radiation Environment and Medicine (2016) 5 ( 1 ) 53 - 58 2016.3

Estimation of external and internal doses resulting from the use of artificial radon spa sources

Masahiro Hosoda, Tetsuo Ishikawa, Yumi Yasuoka, Sarata K. Sahoo, Shin-ichi Katoh, Masayuki Ogawa, Susumu Ogashiwa, Kazuki Iwaoka and Shinji Tokonami

Radiation Environment and Medicine (2016) 5 ( 1 ) 46 - 52 2016.3

Equilibration correction of temporal measurements forsudden 222Rn concentration changes

Y. Tan, S. Tokonami, H. Liu and K.J. Kearfott

Journal of Instrumentation 11 7 - 7 2016.2

An intercomparison done at NIRS, Japan on continuous monitors for measuring Rn-220 concentration

Atsuyuki Sorimachi, Miroslaw Janik, Shinji Tokonami, Tetsuo Ishikawa

APPLIED RADIATION AND ISOTOPES 107 145 - 151 2016.1

Comparative dosimetry for radon and thoron in high background radiation areas in China

H. Kudo, S. Tokonami, Y. Omori, T. Ishikawa, K. Iwaoka, S. K. Sahoo, N. Akata, M. Hosoda, P. Wanabongse, C. Pornnumpa, Q. Sun, X. Li, S. Akiba

Radiation Protection Dosimetry 167 ( 1-3 ) 155 - 159 2015.11

MEASUREMENT OF 90SR IN CONTAMINATED FUKUSHIMA SOILS USING LIQUID SCINTILLATION COUNTER

N. Kavasi, S. K. Sahoo, H. Arae, S. Yoshida, A. Sorimachi and S. Tokonami

Radiation Protection Dosimetry 167 ( 1-3 ) 376 - 379 2015.11

VARIABILITY OF RADIOCAESIUM INVENTORY IN FUKUSHIMA SOIL CORES FROM ONE SITE MEASURED AT DIFFERENT TIMES

S. Mishra, S. K. Sahoo, H. Arae, A. Sorimachi, M. Hosoda, S. Tokonami and T. Ishikawa

Radiation Protection Dosimetry 167 ( 1-3 ) 344 - 347 2015.11

ABSORBED DOSE RATE IN AIR IN METROPOLITAN TOKYO BEFORE THE FUKUSHIMA DAIICHI NUCLEAR POWER PLANT ACCIDENT

K. Inoue, M. Hosoda, M. Fukushi, M. Furukawa, S. Tokonami

RADIATION PROTECTION DOSIMETRY 167 ( 1-3 ) 231 - 234 2015.11

TERRESTRIAL GAMMA RADIATION DOSE RATE IN RYUKYU ISLANDS, SUBTROPICAL REGION OF JAPAN

M. Furukawa, S. Kina, M. Shiroma, Y. Shiroma, N. Masuda, D. Motomura, H. Hiraoka, S. Fujioka, T. Kawakami, Y. Yasuda, K. Arakawa, K. Fukahori, M. Jyunicho, S. Ishikawa, T. Ohomoto, R. Shingaki, N. Akata,W. Zhuo and S. Tokonami

Radiation Protection Dosimetry (2015) 167 ( 1-3 ) 223 - 227 2015.11

ESTIMATION OF RADON EMANATION COEFFICIENT FOR REPRESENTATIVE SOILS IN OKINAWA, JAPAN

Y. Shiroma, M. Hosoda, T. Ishikawa, S. K. Sahoo, S. Tokonami and M. Furukawa

Radiation Protection Dosimetry 167 ( 1-3 ) 147 - 150 2015.11

NATURAL RADIOACTIVITY AND RADON EXHALATION RATES IN MAN-MADE TILES USED AS BUILDING MATERIALS IN JAPAN

K. Iwaoka, M. Hosoda, N. Suwankot, Y. Omori, T. Ishikawa, H. Yonehara and S. Tokonami

Radiation Protection Dosimetry (2015) 167 ( 1-3 ) 135 - 138 2015.11

CHARACTERISTICS OF INDOOR RADON AND ITS PROGENY IN A JAPANESE DWELLING WHILE USING AIR APPLIANCES

C. Pornnumpa, S. Tokonami, A. Sorimachi, C. Kranrod

RADIATION PROTECTION DOSIMETRY 167 ( 1-3 ) 87 - 91 2015.11

COMPARATIVE STUDY OF VARIOUS TECHNIQUES FOR ENVIRONMENTAL RADON, THORON AND PROGENY MEASUREMENTS

R. C. Ramola, Mukesh Prasad, Mukesh Rawat, Anoop Dangwal, G. S. Gusain, Rosaline Mishra, S. K. Sahoo, S. Tokonami

RADIATION PROTECTION DOSIMETRY 167 ( 1-3 ) 22 - 28 2015.11

A proposal to evaluate radioactivity of cement containing coal fly ash from China national standard: “Limits of radionuclides in building materials”

Yanliang Tan, Fudong Liu, Shinji Tokonami, Detao Xiao, Jian Shan, Qingzhi Zhou, Quan Tang, Masahiro Hosoda, Hiromi Kudo-Yokota, Chanis Pornnumpa, Paitoon Wanabongse

Journal of Radioanalytical and Nuclear Chemistry 306 ( 1 ) 277 - 281 2015.10

An intercomparison done at NIRS, Japan on continuous monitors for measuring 220Rn concentration

Atsuyuki Sorimachi, Miroslaw Janik, Shinji Tokonami, Tetsuo Ishikawa

Applied Radiation and Isotopes 107 145 - 151 2015.10

Comparative study of natural radiation exposure to the public in three uranium and oil regions of Cameroon

Saidou, P. Ele Abiama, S. Tokonami

RADIOPROTECTION 50 ( 4 ) 265 - 271 2015.10

A pilot study for dose evaluation in high-level natural radiation areas of Yangjiang, China

Yasutaka Omori, Shinji Tokonami, Tetsuo Ishikawa, Sarata Kumar Sahoo, Naofumi Akata, Atsuyuki Sorimachi, Masahiro Hosoda, Chanis Pornnumpa, Paitoon Wanabongse, Hiromi Kudo, Ye-Jing Hu, Yong-Xiang Ao, Xiao-Liang Li, Kun Li, Ying-Hua Fu, Quan-Fu Sun, Suminori Akiba

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 306 ( 1 ) 317 - 323 2015.10

Radon-thoron discriminative measurements in the high natural radiation areas of southwestern Cameroon

Saïdou, Shinji Tokonami, Miroslaw Janik, Bineng Guillaume Samuel, Abdourahimi, Ndjana Nkoulou II Joseph Emmanuel

Journal of Environmental Radioactivity 150 ( 2015 ) 242 - 246 2015.9

Survey of Radioactive Contamination alomg Mt. Fuji’s Climbing Routes Following TEPCO’s Fukushima Daiichi Nuclear Power Plant Accident

Kazuki Iwaoka, Kazuaki Yajima, Hiroshi Yasuda, Masahiro Hosoda, Shinji Tokonami and Hidenori Yonehara

Radiation Emergency Medicine 4 ( 2 ) 21 - 24 2015.8

A Comparison Study of Commercially Available Survey Meters for Measurment of Gamma-rays

Shingo Terashima, Ayumi Abe, Yukihiko Kasai, Taiga Kawamura, Taichi Kitaya, Kazuki Kudo, Shogo Sakata, Hidenori Sugisawa, Masataka Narita, Megumi Hattori, Daisuke Masuda, Kazuki Iwaoka, Masahiro Hosoda, Tetsuo Ishikawa and Shinji Tokonami

Radiation Emergency Medicine 4 ( 2 ) 29 - 34 2015.8

A Comparison Study of Commercially Available Survey Meters for Measurment of Gamma-rays

Radiation Emergency Medicine 4 ( 2 ) 29 - 34 2015.8

Novel method for estimation of the indoor-to-outdoor airborne radioactivity ratio following the Fukushima Daiichi Nuclear Power Plant accident

Yanliang Tan, Tetsuo Ishikawa, Miroslaw Janik, Shinji Tokonami, Masahiro Hosoda, Atsuyuki Sorimachi, Kimberlee Kearfott

Science of the Total Environment ( 536 ) 25 - 30 2015.7

Distribution of uranium, thorium and some stable trace and toxic elements in human hair and nails in Niska Banja Town, a high natural background radiation area of Serbia (Balkan Region, South-East Europe)

S.K. Sahoo, Z.S. Zunic, R. Kritsananuwat, P. Zagrodzki, P. Bossew, N. Veselinovic, S. Mishra, H. Yonehara, S. Tokonami

Journal of Environmental Radioactivity ( 145 ) 66 - 77 2015.7

岐阜県東濃地域における環境放射線調査

細田正洋,赤田尚史,下道國,古川雅英,岩岡和輝,床次眞司

Radioisotopes 64 ( 7 ) 465 - 474 2015.7

Premilinary experiments using a passive detector for measuring indoor 220Rn progeny concentrations with an aerosol chamber

A. Sorimachi, S. Tokonami, C. Kranrod, T. Ishikawa

Health Physics 108 ( 6 ) 597 - 606 2015.6

Estimation of External Dose by Car-Borne Survey in Kerala, India

Masahiro Hosoda, Shinji Tokonami, Yasutaka Omori, Sarata Kumar Sahoo, Suminori Akiba, Atsuyuki Sorimachi, Tetsuo Ishikawa, Raghu Ram Nair, Padmavathy Amma Jayalekshmi, Paul Sebastian, Kazuki Iwaoka, Naofumi Akata, Hiromi Kudo

PLoS ONE 2015.4

Changes of ambient gamma-ray dose rate in Katsushika Ward, metropolitan Tokyo before and after the Fukushima Daiichi Nuclear Power Plant accident

Kazumasa Inoue, Masahiro Hosoda, Yoshitaka Shiroma, Masahide Furukawa, Masahiro Fukushi, Kazuki Iwaoka, Shinji Tokonami

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 303 ( 3 ) 2159 - 2163 2015.3

Characteristics of the Environmental Radon and Thoron in Minamidaito-jima, a Comparatively High Background Radiation Island in Japan

Y. Shiroma, M. Hosoda, T. Ishikawa, S. K. Sahoo, S. Tokonami, M. Furukawa

Radiation Emergency Medicine 4 ( 1 ) 27 - 33 2015.2

Distribution and retention of Cs radioisotopes in soil affected by Fukushima nuclear plant accident

Suchismita Mishra, Hideki Arae, Atsuyuki Sorimachi, Masahiro Hosoda, Shinji Tokonami, Tetsuo Ishikawa, Sarata Kumar Sahoo

JOURNAL OF SOILS AND SEDIMENTS 15 ( 2 ) 374 - 380 2015.2

Characteristics of the Environmental Radon and Thoron in Minamidaito-jima, a Comparatively High Background Radiation Island in Japan

Y. Shiroma, M. Hosoda, T. Ishikawa, S. K. Sahoo, S. Tokonami, M. Furukawa

Radiation Emergency Medicine 4 ( 1 ) 27 - 33 2015.2

Measurement of 90Sr in soil samples affected by the Fukushima Daiichi Nuclear Power Plant accident

N. Kavasi, S. K. Sahoo, A. Sorimachi, S. Tokonami, T. Aono, S. Yoshida

Journal of Radioanalytical and Nuclear Chemistry ( 303 ) 2565 - 2570 2014.10

福島県浪江町の里山に大気沈着した放射性セシウムの森林内分布と挙動

黒島碩人, 緒方裕子, 大河内博, 床次眞司, 反町篤行, 細田正洋

大気環境学会誌 49 ( 2 ) 93 - 100 2014.9

Development of an aerosol chamber for calibration of Rn-220 progeny detectors

Atsuyuki Sorimachi, Tetsuo Ishikawa, Shinji Tokonami

REVIEW OF SCIENTIFIC INSTRUMENTS 85 ( 9 ) 095104 2014.9

Performance Experiments of the Humidity Control System in the 220Rn Chamber

Atsuyuki Sorimachi, Tetsuo Ishikawa, Shinji Tokonami

Radiation Emergency Medicine 3 ( 2 ) 24 - 30 2014.8

Radiation Dose Reduction Efficiency of Buildings after the Accident at the Fukushima Daiichi Nuclear Power Station

Satoru Monzen, Masahiro Hosoda, Minoru Osanai, Shinji Tokonami

PLoS ONE 9 ( 7 ) e101650 2014.7

Absorbed Dose Rate in Air at the Bunkyo-cho Campus of Hirosaki University

Masahiro Hosoda, Yoshinori Fukui, Chanis Pomnumpa, Atsuyuki Sorimachi, Tetsuo Ishikawa, Masanori Yachi, Ayano Nara, Hiromi Yokota, Shinji Tokonami

Radiation Emergency Medicine 3 ( 1 ) 59 - 62 2014.2

Absorbed Dose Rate in Air at the Bunkyo-cho Campus of Hirosaki University

Masahiro Hosoda, Yoshinori Fukui, Chanis Pomnumpa, Atsuyuki Sorimachi, Tetsuo Ishikawa, Masanori Yachi, Ayano Nara, Hiromi Yokota, Shinji Tokonami

Radiation Emergency Medicine 3 ( 1 ) 59 - 62 2014.2

Simultaneous Sampling of Indoor and Outdoor Airborne Radioactivity after the Fukushima Daiichi Nuclear Power Plant Accident

Tetsuo Ishikawa, Atsuyuki Sorimachi, Hideki Arae, Sarata Kumar Sahoo, Miroslaw Janik, Masahiro Hosoda, Shinji Tokonami

Environmental Science & Technology Article ASAP 48 ( 4 ) 2430 - 2435 2014.1

Estimation of internal exposure of the thyroid to 131I on the basis of 134Cs accumulated in the body among evacuees of the Fukushima Daiichi Nuclear Power Station accident

Masahiro Hosoda, Shinji Tokonami, Suminori Akiba, Osamu Kurihara, Atsuyuki Sorimachi, Tetsuo Ishikawa, Takumaro Momose, Takashi Nakano, Yasushi Mariya, Ikuo Kashiwakura

Environment International ( 61 ) 73 - 76 2013.9

The internal exposure of the thyroid to radioiodine from the Fukushima Nuclear accident.

A. Sorimachi, S. Tokonami.

Japanese Journal of Health Physics 47 ( 3 ) 204 - 205 2013.9

Natural radionuclide analysis in chattarpur area of southeastern coastal area of Odisha, India

Bhagwat S. Rautela, Gurupad S. Gusain, Manjulata Yadav, Sarat K. Sahoo, Shinji Tokonami, Rakesh C. Ramola

Acta Geophysica 61 ( 4 ) 1038 - 1045 2013.8

An Investigation of Gamma-ray Dose Rate in the Central Area of Hirosaki City, Japan

Hironori Yoshino, Hideki Obara, Teruaki Maeda, Akiyoshi Yamada, Ken-ichiro Watanabe, Masahiro Hosoda, Atsuyuki Sorimachi, Tetsuo Ishikawa, Shinji Tokonami

Radiation Emergency Medicine 2 ( 2 ) 72 - 76 2013.8

An Investigation of Gamma-ray Dose Rate in the Central Area of Hirosaki City, Japan

Hironori Yoshino, Hideki Obara, Teruaki Maeda, Akiyoshi Yamada, Ken-ichiro Watanabe, Masahiro Hosoda, Atsuyuki Sorimachi, Tetsuo Ishikawa, Shinji Tokonami

Radiation Emergency Medicine 2 ( 2 ) 72 - 76 2013.8

Investigation of radon and thoron concentrations in a landmark skyscraper in Tokyo

Kazumasa Inoue, Masahiro Hosoda, Shinji Tokonami, Tetsuo Ishikawa, Masahiro Fukushi

Journal of Radioanalytical and Nuclear Chemistry ( 298 ) 2013.7

Comparative analysis of radon, thoron and thoron progeny concentration measurements

M. Janik, S. Tokonami, C. Kranrod, A. Sorimachi, T. Ishikawa, M. Hosoda, J.P. McLaughlin, B.U. Chang, Y.J. Kim

J. Radiat. Res. 54 ( 4 ) 597 - 610 2013.7

Diurnal variations of radon and thoron activity concentrations and effective doses in dwellings in Niška Banja, Serbia

J. Vaupotic, T. Streil, S. Tokonami, Z. S. Zunic

Radiation Protection Dosimetry 157 ( 3 ) 375 - 382 2013.6

Naturally occurring radionuclides and rare earth elements in weathered Japanese soil samples

Sarata K. Sahoo, Masahiro Hosoda, Ganesh Prasad, Hiroyuki Takahashi, Atsuyuki Sorimachi, Tetsuo Ishikawa, Shinji Tokonami, Shigeo Uchida

Acta Geophysica 61 ( 4 ) 876 - 885 2013.5

Measurements of radon and thoron concentrations in high radiation background area using pin-hole dosimeter

R.C. Ramola, B.S. Rautela, G.S. Gusain, Ganesh Prasad, S.K. Sahoo, S. Tokonami

Radiation Measurements 53-54 71 - 73 2013.4

ISO standards on test methods for water radioactivity monitoring

D. Calmet, R. Ameon, A. Bombard, M. Forte, M. Fournier, M. Herranz, S. Jerome, P. Kwakman, M. Llaurado, S. Tokonami

Applied Radiation and Isotopes ( 81 ) 21 - 25 2013.3

Measurement of radon and thoron progeny size distributions and dose assessments at the mineral treatment industry in Thailand

C. Kranrod, S. Chanyotha, N. Chankow, S. Tokonami, T. Ishikawa

J. Radioanal. Nucl. Chem. 296 ( 2 ) 625 - 630 2013.3

National suevey of indoor thoron concentration in FYR of Macedonia (continental Europe-Balkan region)

Z. Stojanovska, P. Bossew, S. Tokonami, Z. Zunic, F. Bochuicchio, B. Boev, M. Ristova, J. Januseski

Radiation Measurements ( 49 ) 57 - 66 2013.2

Occupational exposure to Austrian rocks as radon spa sources in Japan

K. Iwaoka, H. Tabe, T. Ishikawa, S. Tokonami, H. Yonehara

Radiation Emergency Medicine 2 ( 1 ) 23 - 26 2013.2

Activity concentration of natural radionuclides and radon and thoron exhalation rates in rocks used as decorative wall coverings in japan

Kazuki Iwaoka, Masahiro Hosada, Hiroyuki Tabe, Tetsuo Ishikawa, Shinji Tokonami, Hidenori Yonehara

Health physics 104 ( 1 ) 41 - 50 2013.1

ACTIVITY CONCENTRATION OF NATURAL RADIONUCLIDES AND RADON AND THORON EXHALATION RATES IN ROCKS USED AS DECORATIVE WALL COVERINGS IN JAPAN

Kazuki Iwaoka, Masahiro Hosoda, Hiroyuki Tabe, Tetsuo Ishikawa, Shinji Tokonami, Hidenori Yonehara

HEALTH PHYSICS 104 ( 1 ) 41 - 50 2013.1

Activity concentrations of environmental samples collected in Fukushima Prefecture immediately after the Fukushima nuclear accident.

Masahiro Hosoda, Shinji Tokonami, Hirofumi Tazoe, Atsuyuki Sorimachi, Satoru Monzen, Minoru Osanai, Naofumi Akata, Hideki Kakiuchi, Yasutaka Omori, Tetsuo Ishikawa, Sarata K Sahoo, Tibor Kovács, Masatoshi Yamada, Akifumi Nakata, Mitsuaki Yoshida, Hironori Yoshino, Yasushi Mariya, Ikuo Kashiwakura

Scientific reports 3 2283 - 2283 2013

Concentration of H-3 in plants around Fukushima Dai-ichi Nuclear Power Station

Hideki Kakiuchi, Naofumi Akata, Hidenao Hasegawa, Shinji Ueda, Shinji Tokonami, Masatoshi Yamada, Masahiro Hosoda, Atsuyuki Sorimachi, Hirofumi Tazoe, Kaori Noda, Shun'ichi Hisamatsu

SCIENTIFIC REPORTS 2 947 2012.12

Distribution of terrestrial gamma radiation dose rate in the eastern coastal area of Odisha, India

G. S. Gusain, B. S. Rautela, S. K. Sahoo, T. Ishikawa, G. Prasad, Y. Omori, A. Sorimachi, S. Tokonami, R. C. Ramola

Radiation Protection Dosimetry 152 ( 1-3 ) 42 - 45 2012.11

Estimation of radon diffusion coefficient in soil using updated experimental system

G. Prasad, T. Ishikawa, M. Hosoda, A. Sorimachi, M. Janik, S.K. Sahoo, S. Tokonami, S. Uchida

Review of Scientific Instrument 83 ( 9 ) 093503 2012.9

Distribution of Uranium and some selected trace metals in human scalp hair from Balkans

Zunic Z.S., Tokonami S., Mishra S., Arae H., Kritsananuwat R., Sahoo S.K.

Radiation Protection Dosimetry 152 ( 1-3 ) 220 - 223 2012.8

Radioactive pollution from Fukushima Daiichi Nuclear Power Plant in the terrestrial environment

Tazoe H., Hosoda, M., Sorimachi A., Tokonami S., Yamada M.

Radiation Protection Dosimetry 152 ( 1-3 ) 198 - 203 2012.8

Radon and thoron doses in kindergartens and elementary schools

Vaupotic J., Bezek M., Kavasi N., Ishikawa T., Yonehara H., Tokonami S.

Radiation Protection Dosimetry 152 ( 1-3 ) 247 - 252 2012.8

Preliminary results from an indoor radon thoron survey in Hungary

G. Szeiler, J. Somlai, T. Ishikawa, Y. Omori, R. Mishra, B. K. Sapra, Y. S. Mayya, S. Tokonami

Radiation Protection Dosimetry 152 ( 1-3 ) 243 - 246 2012.8

Environmental radiation at Izu-Ohshima after the Fukushima Daiichi Nuclear Power Plant accident

Inoue K., Hosoda M., Sugino M., Simizu H., Akimoto A., Hori K., Ishikawa T., Sahoo S.K., Tokonami S., Narita H., Fukushi M.

Radiation Protection Dosimetry 152 ( 1-3 ) 234 - 237 2012.8

Effects of air exchange property of passive-type radon-thoron discriminative detectors on performance of radon and thoron measurements

Omori Y., Janik M., Sorimachi A., Ishikawa T., Tokonami S.

Radiation Protection Dosimetry 152 ( 1-3 ) 140 - 145 2012.8

Measurement of radon/thoron exhalation rates and gamma ray dose rate in granite areas in Japan

Prasad G., Ishikawa T., Hosoda M., Sahoo S.K., Kavasi N., Sorimachi A., Tokonami S.

Radiation Protection Dosimetry 152 ( 1-3 ) 130 - 134 2012.8

Levels of thoron and its progeny in high background radiation area of southeastern coast of Odisha, India

Ramola R.C., Gusain G.S., Rautela B.S., Sagar D.V., Prasad G., Sahoo S.K., Ishikawa T., Omori Y., Janik M., Sorimachi A., Tokonami S.

Radiation Protection Dosimetry 152 ( 1-3 ) 62 - 65 2012.8

Radon concentration of outdoor air: measured by an ionization chamber for radioisotope monitoring system at radioisotope institute

Y. Tajika, Y. Yasuoka, H. Nagahama, T. Suzuki, Y. Homma, T. Ishikawa, S. Tokonami, T. Mukai, M. Janik, A. Sorimachi, M. Hosoda

Journal of Radioanalytical and Nuclear Chemistry 295 ( 3 ) 1709 - 1714 2012.8

Thyroid doses for evacuees from the Fukushima nuclear accident

S. Tokonami, M. Hosoda, S. Akiba, A. Sorimachi, I. Kashiwakura, M. Balonov

Scientific Reports ( 2 ) 507 2012.7

Performance test for radon measuring instruments using radon chamber at PTB

A. Sorimachi, T. Ishikawa, S. Tokonami

Applied Radiation and Isotopes 70 ( 6 ) 994 - 998 2012.6

Performance test of passive radon-thoron discriminative detectors on environmental parameters

A. Sorimachi, S. Tokonami, Y. Omori, T. Ishikawa

Radiation Measurements 47 ( 6 ) 438 - 442 2012.6

Mitigation effects of radon decay products by air cleaner

Kazuki Iwaoka, Shinji Tokonami, Tetsuo Ishikawa and Hidenori Yonehara

Journal of Radioanalytical and Nuclear Chemistry 295 ( 1 ) 639 - 642 2012.5

Anomalous change in atmospheric radon concentration sourced from broad crustal deformation: A case study of the 1995 Kobe earthquake

Yumi Yasuoka, Yusuke Kawada, Yasutaka Omori, Hiroyuki Nagahama, Tetsuo Ishikawa, Shinji Tokonami, Masahiro Hosoda, Tetsuo Hashimoto, Masaki Shinogi

APPLIED GEOCHEMISTRY 27 ( 4 ) 825 - 830 2012.4

Long term measurements of indoor radon equilibrium factor

N. H. Harley, J. Chen, P. Chittaporn, A. Sorimachi, S. Tokonami

Health Physics 102 ( 4 ) 459 - 462 2012.4

AN INTERCOMPARISON FOR NIRS AND NYU PASSIVE THORON GAS DETECTORS AT NYU

Atsuyuki Sorimachi, Tetsuo Ishikawa, Shinji Tokonami, Passaporn Chittaporn, Naomi H. Harley

HEALTH PHYSICS 102 ( 4 ) 419 - 424 2012.4

Determination of thoron equilibrium factor from simultaneous long-term thoron and its progeny measurements

Jing Chen, Deborah Moir, Atsuyuki Sorimachi, Miroslaw Janik, Shinji Tokonami

RADIATION PROTECTION DOSIMETRY 149 ( 2 ) 155 - 158 2012.4

CANCER AND NON-CANCER MORTALITY AMONG INHABITANTS IN THE HIGH BACKGROUND RADIATION AREA OF YANGJIANG, CHINA (1979-1998)

Zufan Tao, Suminori Akiba, Yongru Zha, Quanfu Sun, Jianming Zou, Jia Li, Yusheng Liu, Yongling Yuan, Shinji Tokonami, Hisashige Morishoma, Taeko Koga, Seiichi Nakamura, Tsutomu Sugahara, Luxin Wei

HEALTH PHYSICS 102 ( 2 ) 173 - 181 2012.2

Seasonal and diurnal variations of radon/thoron exhalation rate in Kanto-loam area in Japan

Prasad Ganesh, Tetsuo Ishikawa, Masahiro Hosoda, Atsuyuki Sorimachi, Sahoo Sarata Kumar, Norbert Kavasi, Shinji Tokonami, Masato Sugino, Shigeo Uchida

Journal of Radioanalytical and Nuclear Chemistry 292 ( 3 ) 1385 - 1390 2012.1

Visualization of Radiocesium Distribution in Contaminated Soil from Kashiwa City,Chiba,Japan

Masahiro Hosoda, Masahiro Fukushi, Hideo Shimizu, Shinji Tokonami

Radiation Emergency Medicine 1 ( 1-2 ) 117 - 120 2012.1

CHARACTERISTICS OF RADON AND THORON EXHALATION RATES IN OKINAWA, SUBTROPICAL REGION OF JAPAN

Y. Shiroma, S. Kina, T. Fujitani, M. Hosoda, A. Sorimachi, T. Ishikawa, S. K. Sahoo, S. Tokonami, M. Furukawa

RADIATION PROTECTION DOSIMETRY 152 ( 1-3 ) 184 - 188 2012

DETERMINATION OF THE MINIMUM MEASUREMENT TIME FOR ESTIMATING LONG-TERM MEAN RADON CONCENTRATION

M. Janik, J. Loskiewicz, S. Tokonami, K. Kozak, J. Mazur, T. Ishikawa

RADIATION PROTECTION DOSIMETRY 152 ( 1-3 ) 168 - 173 2012

Anomalous Atmospheric Radon Variation before an Earthquake: A Case Study of the 1995 Kobe Earthquake, Japan

Yasuoka, Y, Ishikawa, T, Omori, Y, Kawada, Y, Nagahama, H, Tokonami, S, Shinogi, M

Handbook of Radon: Properties, Applications and Health, In: Li, Z. & Feng, C. (eds.) 389 - 403 2012

3F1313 Size distribution of radioactive aerosol particles in Fukushima prefecture(5 Substance-2 particulate matter,General Presentations)

SORIMACHI Atsuyuki, OKA Mitsuaki, HOSODA Masahiro, TAZOE Hirohumi, TOKONAMI Shinji, YAMADA Masatoshi, KASHIWAKURA Ikuo

( 53 ) 2012

Individual radiation exposure dose due to support activities at safe shelters in Fukushima Prefecture

Satoru Monzen, Masahiro Hosoda, Shinji Tokonami, Minoru Osanai, Hironori Yoshino, Yoichiro Hosokawa, Mitsuaki Yoshida, Masahiroshi Yamada, Yasushi Asari, Kei Satoh, Ikuo Kashiwakura

PLoS ONE 6 ( 11 ) e27761 2011.11

AN UPDATE ON THORON EXPOSURE IN CANADA WITH SIMULTANEOUS Rn-222 AND Rn-220 MEASUREMENTS IN FREDERICTON AND HALIFAX

Jing Chen, Deborah Moir, Toon Pronk, Terry Goodwin, Miroslaw Janik, Shinji Tokonami

RADIATION PROTECTION DOSIMETRY 147 ( 4 ) 541 - 547 2011.11

Terrestrial gamma radiation in Phuket Island, Thailand

S. Chanyotha, C. Kranrod, S. Tokonami, N. Suwankot, K. Pangza, C. Pornnumpa

Engineering Journal 15 ( 4 ) 65 - 76 2011.10

The time variation of dose rate artificially increased by the Fukushima nuclear crisis

Masahiro Hosoda, Shinji Tokonami, Atsuyuki Sorimachi, Satoru Monzen, Minoru Osanai, Masatoshi Yamada, Ikuo Kashiwakura, Suminori Akiba

Scientific Reports 1 ( 87 ) 1 - 5 2011.9

Comparison of urinary excretion of radon from the human body before and after radon bath therapy.

Kávási N, Kovács T, Somlai J, Jobbágy V, Nagy K, Deák E, Berhés I, Bender T, Ishikawa T, Tokonami S

Radiation protection dosimetry 146 ( 1-3 ) 27 - 30 2011.7

International standardisation work on the measurement of radon in air and water

D. Calmet, R. Ameon, T. Beck, A. Bombard, M. N. Bourquin, S. Brun, P. De Jong, M. Forte, M. Fournier, M. Herranz, S. Jerome, A. Klett, P. Kwakman, M. Llaurado, J. Loyen, R. Michel, P. Nardoux, T. Richards, C. Schuler, S. Tokonami and M. Woods

Radiation Protection Dosimetry 145 ( 2-3 ) 267 - 272 2011.5

Long-term measurements of thoron, its airborne progeny and radon in 205 dwellings in Ireland

James Mc Laughlin, Michael Murray, Lorraine Currivan, David Pollard, Veronica Smith, Shinji Tokonami, Atsuyuki Sorimachi, Miroslaw Janik

Radiation Protection Dosimetry 145 ( 2 ) 189 - 193 2011.4

National radon survey in Korea

Y.J. Kim, B.U. Chang, H.M. Park, C.K. Kim, S. Tokonami

Radiation Protection Dosimetry 146 ( 1-3 ) 6 - 10 2011.4

Effect of radon measurement methods on dose estimation

Norbert Kavasi, Yosuke Kobayashi, Kovacs T, Somlai J, V Jobbagy, Katalin Nagy, Eszter Deak, Istvan Berhes, Tamas Bender, Tetsuo Ishikawa, Shinji Tokonami, Janja Vaupotic, Shinji Yoshinaga, Hidenori Yonehara

Radiation Protection Dosimetry 145 ( 2-3 ) 224 - 232 2011.3

Characteristics of thoron and thoron progeny in Canadian homes

Jing Chen, Deborah Moir, Atsuyuki Sorimachi, Shinji Tokonami

RADIATION AND ENVIRONMENTAL BIOPHYSICS 50 ( 1 ) 85 - 89 2011.3

The effect of water content on the radon emanation coefficient for some building materials used in Japan

Mohamed Hassan Nabil Mohamed, Tetsuo Ishikawa, Masahiro Hosoda, Kazuki Iwaoka, Atsuyuki Sorimachi, Sahoo Sarata Kumar, JANIK Miroslaw, Kranrod Chutima, Hidenori Yonehara, Masahiro Fukushi, Shinji Tokonami

Radiation Measurements 46 ( 2 ) 232 - 237 2011.2

Simultaneous Measurement of Radon and Thoron Released from Building Materials Used in Japan

Mohamed Hassan Nabil Mohamed, Masahiro Hosoda, Kazuki Iwaoka, Atsuyuki Sorimachi, JANIK Miroslaw, Kranrod Chutima, Sahoo Sarata Kumar, Tetsuo Ishikawa, Hidenori Yonehara, Masahiro Fukushi, Shinji Tokonami

Progress in Nuclear Science and Technology ( 1 ) 404 - 407 2011.2

Thorium, uranium and rare earth elements concentration in weathered Japanese soil samples

Sahoo Sarata Kumar, Masahiro Hosoda, Atsuyuki Sorimachi, Tetsuo Ishikawa, Shinji Tokonami, Shigeo Uchida

Progress in Nuclear Science and Technology 1 416 - 419 2011.2

Determination of uranium concentrations and its activity ratios in coal and fly ash from Philippine coal-fired thermal power plants using ICP-MS and TIMS

Sahoo Sarata Kumar, Vangeline K. Parami, Leni L. Quirit, Hidenori Yonehara, Tetsuo Ishikawa, Shinji Tokonami

Radiochimica Acta 1 ( 1 ) 257 - 261 2011.1

A simple technique for studying the dependence of radon and thoron exhalation rate from building materials on absolute humidity

Nabil M. Hassan, Shinji Tokonami, Masahiro Fukushi

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 287 ( 1 ) 185 - 191 2011.1

Development and application of a continuous measurement system for radon exhalation rate

Masahiro Hosoda, Tetsuo Ishikawa, Atsuyuki Sorimachi, Shinji Tokonami, Shigeo Uchida

REVIEW OF SCIENTIFIC INSTRUMENTS 82 ( 1 ) 015101 - 015101-4 2011.1

Radon and Thoron parallel measurements in dwellings nearby a closed Hungarian uranium mine

Csaba Nemeth, V Jobbagy, Norbert Kavasi, Janos Somlai, Tidor Kovacs, Shinji Tokonami

Nukleonika 55 ( 4 ) 459 - 462 2010.12

A comparative study of thorium activity in NORM and high background radiation area

S. K. Sahoo, T. Ishikawa, S. Tokonami, A. Sorimachi, C. Kranrod, M. Janik, M. Hosoda, N. M. Hassan, S. Chanyotha, V. K. Parami, H. Yonehara, R. C. Ramola

RADIATION PROTECTION DOSIMETRY 141 ( 4 ) 416 - 419 2010.10

Collaborative investigations on thoron and radon in some rural communities of Balkans

Z. S. Zunic, I. Celikovic, S. Tokonami, T. Ishikawa, P. Ujic, A. Onischenko, M. Zhukovsky, G. Milic, B. Jakupi, O. Cuknic, N. Veselinovic, K. Fujimoto, S. K. Sahoo, I. Yarmoshenko

RADIATION PROTECTION DOSIMETRY 141 ( 4 ) 346 - 350 2010.10

Comparative dosimetry of radon and thoron

C. Kranrod, T. Ishikawa, S. Tokonami, A. Sorimachi, S. Chanyotha, N. Chankow

RADIATION PROTECTION DOSIMETRY 141 ( 4 ) 424 - 427 2010.10

EFFECTIVE DOSE OF MINERS DUE TO NATURAL RADIOACTIVITY IN A MANGANESE MINE IN HUNGARY

Norbert Kavasi, Vigh Tamas, Atsuyuki Sorimachi, Tetsuo Ishikawa, Shinji Tokonami, Masahiro Hosoda

Radiation Protection Dosimetry 141 ( 4 ) 432 - 435 2010.9

IN SITU MEASUREMENTS OF THORON EXHALATION RATE IN OKINAWA, JAPAN

Yoshitaka Shiroma, Noki Isa, Masahiro Hosoda, Atsuyuki Sorimachi, Tetsuo Ishikawa, Shinji Tokonami, Masahide Furukawa

Radiation Protection Dosimetry 141 ( 4 ) 457 - 461 2010.9

INTERNATIONAL INTERCOMPARISONS OF INTEGRATING RADON/THORON DETECTORS WITH THE NIRS RADON/THORON CHAMBERS

JANIK Miroslaw, Shinji Tokonami, Kranrod Chutima, Atsuyuki Sorimachi, Tetsuo Ishikawa, Mohamed Hassan Nabil Mohamed

Radiation Protection Dosimetry 141 ( 4 ) 436 - 439 2010.9

WHY IS 220RN (THORON) MEASUREMENT IMPORTANT?

Shinji Tokonami

Radiation Protection Dosimetry 141 ( 4 ) 335 - 339 2010.9

INFLUENCE OF SOIL ENVIRONMENTAL PARAMETERS ON THORON EXHALATION RATE

Masahiro Hosoda, Shinji Tokonami, Atsuyuki Sorimachi, Tetsuo Ishikawa, Sahoo Sarata Kumar, Masahide Furukawa, Yoshitaka Shiroma, Yumi Yasuoka, JANIK Miroslaw, Norbert Kavasi, Shigeo Uchida, Michikuni Shimo

Radiation Protection Dosimetry 141 ( 4 ) 420 - 423 2010.9

THORON EXHALATION RATES IN AREAS OF JAPAN

Michikuni Shimo, Yuu Ishimori, Masahiro Hosoda, Shinji Tokonami

Radiation Protection Dosimetry 141 ( 4 ) 473 - 476 2010.9

THORON: ITS METROLOGY, HEALTH EFFECTS AND IMPLICATIONS FOR RADON EPIDEMIOLOGY: A SUMMARY OF ROUNDTABLE DISCUSSIONS

Suminori Akiba, Shinji Tokonami, Bochicchio Francesco, James Mc Laughlin, Luigi Tommasino, Naomi Harley

Radiation Protection Dosimetry 141 ( 4 ) 477 - 481 2010.9

THE MEASUREMENTS OF THORON, RADON AND THEIR DECAY PRODUCTS THANKS TO PINOCCHIO, TENGU AND TROLLS

Luigi Tommasino, Shinji Tokonami, P. M. Tommasino

Radiation Protection Dosimetry 141 ( 4 ) 340 - 345 2010.9

Quality assurance and quality control for thoron measurement at NIRS

Atsuyuki Sorimachi, Tetsuo Ishikawa, JANIK Miroslaw, Shinji Tokonami

Radiation Protection Dosimetry 141 ( 4 ) 367 - 370 2010.9

PRELIMINARY INDOOR THORON MEASUREMENTS IN HIGH RADIATION BACKGROUND AREA OF SOUTHEASTERN COASTAL ORISSA, INDIA

(172) Ramola Rakesh, G. Prasad, G.S. Gusain, B.S. Rautela, V.M. Choubey, D.V. Sagar, Shinji Tokonami, Atsuyuki Sorimachi, Sahoo Sarata Kumar, Janik Miroslaw, Tetsuo Ishikawa

Radiation Protection Dosimetry 141 ( 4 ) 379 - 382 2010.9

LONG-TERM DETERMINATION OF AIRBORNE RADON PROGENY CONCENTRATIONS USING LR 115 DETECTORS AND THE EFFECTS OF THORON

V.W.Y. Choi, C.K.M. Ng, JANIK Miroslaw, Atsuyuki Sorimachi, Kranrod Chutima, D Nikezic, Shinji Tokonami, et.al

Radiation Protection Dosimetry 141 ( 4 ) 404 - 407 2010.9

SEPARATELY MEASURING RADON AND THORON CONCENTRATIONS EXHALED FROM SOIL USING ALPHAGUARD AND LIQUID SCINTILLATION COUNTER METHODS

Yumi Yasuoka, Atsuyuki Sorimachi, Tetsuo Ishikawa, Masahiro Hosoda, Shinji Tokonami, Nobutoshi Fukuhori, JANIK Miroslaw

Radiation Protection Dosimetry 141 ( 4 ) 412 - 415 2010.9

Radiological characterization of commercially available radon spa sources

T. Ishikawa, M. Hosoda, A. Sorimachi, S. Tokonami, S. Katoh, S. Ogashiwa

Journal of Radioanalytical and Nuclear Chemistry 287 709 - 713 2010.8

環境移行パラメータ推定支援ツールを用いたラドン散逸率の評価

細田正洋,床次眞司,石川徹夫,S. K. Sahoo,反町篤行,M. Janik,N. Kavasi,内田滋夫

Radioisotopes 59 ( 7 ) 423 - 428 2010.7

AN INVESTIGATION ON RADON AND THORON RESPONSE OF ALPHA-TRACK DETECTORS USED IN THE WINNIPEG CASE-CONTROL STUDY

Jing Chen, Bill Walker, Atsuyuki Sorimachi, Hiroyuki Takahashi, Shinji Tokonami

RADIATION PROTECTION DOSIMETRY 138 ( 1 ) 83 - 86 2010.1

Assessment of the natural radioactivity using two techniques for the measurement of radionuclide concentration in building materials used in Japan

Nabil M. Hassan, Tetsuo Ishikawa, Masahiro Hosoda, Atsuyuki Sorimachi, Shinji Tokonami, Masahiro Fukushi, Sarata K. Sahoo

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 283 ( 1 ) 15 - 21 2010.1

Anomalously High Radon Concentrations in a Dwelling in Okinawa, Japan

反町篤行, KRANROD Chutima, 床次眞司, 石川徹夫, 細田正洋, JANIK Miroslaw, 新垣玲奈, 古川雅英

Radioisotopes 58 ( 12 ) 807-813 (J-STAGE) - 813 2009.12

A simulation study of radon and thoron discrimination problem in case-control studies.

Doi K, Tokonami S, Yonehara H, Yoshinaga S

Journal of radiation research 50 ( 6 ) 495 - 506 2009.11

Sensitivity to thoron of an SSNTD-based passive radon measuring device: Experimental evaluation and implications for radon concentration measurements and risk assessment

B. Francesco, A. Ampollini, L. Tommasino, A. Sorimachi, S. Tokonami

Radiation Measurements 44 ( 9-10 ) 1024 - 1027 2009.10

Preseismic alteration of atmospheric electrical conditions due to anomalous radon emanation

Y. Omori, H. Nagahama, Y. Kawada, Y. Yasuoka, T. Ishikawa, S. Tokonami, M. Shinogi

Physics and Chemistry of the Earth, Parts A/B/C 34 ( 6-7 ) 435 - 440 2009.8

Thoron in the environment and its related issues

S. Tokonami

Indian Journal of Physics 83 ( 6 ) 777 - 785 2009.8

Field Experience with Soil Gas Mapping Using Japanese Passive Radon/Thoron Discriminative Detectors for Comparing High and Low Radiation Areas in Serbia (Balkan Region)

Z. S. Zunic, J. Miroslaw, S. Tokonami, V. Nenad, Y. Ilia, Z. Michael, T. Ishikawa, R. Rakesh, C. Giancarlo, J. Peter, K. Kryzstof, M. Jadwiga, I. Celikovic, P. Ujic, O. Aleksandra, S. K. Sahoo, B. Francesco

Journal of Radiation Research 50 ( 4 ) 355 - 361 2009.6

Simultaneous Measurements of Radon and Thoron Exhalation Rates and Comparison with Values Calculated by UNSCEAR Equation

M. Hosoda, A. Sorimachi, Y. Yasuoka, T. Ishikawa, S. K. Sahoo, M. Furukawa, N. M. Hassan, S. Tokonami, S. Uchida

Journal of Radiation Research 50 ( 4 ) 333 - 343 2009.6

ハンガリーの修復作業中のウラン鉱山における環境放射能・線の調査

細田正洋,反町篤行,石川徹夫,S. K. Sahoo, N. Kavasi, K. Tibor,床次眞司

保健物理 44 ( 2 ) 191 - 197 2009.6

Comparison of simplified liquid scintillation counter (Triathler) with conventional liquid scintillation counter in the measurement of radon concentration in water

Y. Yasuoka, T. Ishikawa, N. Fukuhori, S. Tokonami

温泉科学 59 ( 1 ) 11 - 21 2009.6

Mitigation of the effective dose of radon decay products through the use of an air cleaner in a dwelling in Okinawa, Japan.

K. Chutima, S. Tokonami, T. Ishikawa, A. Sorimachi, J. Miroslaw, R. Shingaki, M. Furukawa, C. Supitcha, C. Nares

Applied Radiation and Isotopes 67 ( 6 ) 1127 - 1132 2009.6

Identification and assessment of elevated exposure to natural radiation in Balkan region (Serbia)

Z. S. Zunic, Y. Ilia, V. Nenad, Z. Michael, P. Ujic, I. Celikovic, J. McLaughlin, S. Simos, B. Aleksandar, K. Fujimoto, P. Johan, T. Flavio, S. Tokonami, O. Pawel, K. Kryzstof, B. Francesco, R. Rakesh, M. Jerzy, J. Bajram, M. Gordana, C. Giancarlo, K. Kevin, B. Macej, S. K. Sahoo, V. Hans, W. Micael

Radioprotection 44 ( 5 ) 919 - 925 2009.6

沖縄県読谷村の空間γ線線量と地質との関係

益田和,向真希,外間智規,本村大,謝花正信,床次眞司,古川雅英

Radioisotopes 58 ( 5 ) 187 - 193 2009.5

Simultaneous 222Rn and 220Rn measurements in Winnpeg,Canada.

J. Chen, E. Schroth, E. Mackinlay, I. Fife, A. Sorimachi, S. Tokonami

Radiation Protection Dosimetry 134 ( 2 ) 75 - 78 2009.4

Preseismic changes in atmospheric radon concentration and crustal strain

Y. Yasuoka, Y. Kawada, H. Nagahama, Y. Omori, T. Ishikawa, S. Tokonami, M. Shinogi

Physics and Chemistry of the Earth, Parts A/B/C 34 ( 6-7 ) 431 - 434 2009.4

International intercomparisons of integrating radon detectors in the NIRS radon chamber.

J. Miroslaw, S. Tokonami, T. Kovacs, N. Kavasi, K. Chutima, A. Sorimachi, H. Takahashi, T. Ishikawa

Applied Radiation and Isotopes 67 ( 9 ) 1691 - 1696 2009.3

Radon mitigation using an air cleaner

Y. Yasuoka, T. Ishikawa, S. Tokonami, H. Takahashi, A. Sorimachi, M. Shinogi

Journal of Radioanalytical and Nuclear Chemistry 297 ( 3 ) 885 - 891 2009.3

Natural and Artificial Sources of Radioactivity in Poland

M. Janik, S. Tokonami

Japanese Journal of Health Physics 44 ( 1 ) 116 - 121 2009.3

Difficulties in the dose estimate of workers originated from radon and radon progeny in a manganese mine

Norbert Kavasi, Janos Somlai, Tamas Vigh, Shinji Tokonami, Tetsuo Ishikawa, Atsuyuki Sorimachi, Tibor Kovacs

RADIATION MEASUREMENTS 44 ( 3 ) 300 - 305 2009.3

222Rn exhalation rate from Egyptian building materials using active and passive methods

N. M. Hassan, M. Hosoda, T. Ishikawa, S. Tokonami, M. Fukushi

Japanese Journal of Health Physics 44 ( 1 ) 106 - 111 2009.3

Characterization of airborne radon released by domestic showering and the use of a washing machine

T. Ishikawa, Y. Yasuoka, S. Tokonami, H. Takahashi, H. Suda

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 279 ( 3 ) 719 - 724 2009.3

Generation and control of thoron emanated from lantern mantles

A. Sorimachi, S. K. Sahoo, S. Tokonami

Review of Scientific Instruments 80 ( 1 ) 015104-1 - 015104-4 2009.1

Radiation dose of workers originating from radon in the show cave of Tapolca, Hungary

J. Somlai, S. Gabor, P. Szabo, A. Varhegyi, S. Tokonami, T. Ishikawa, A. Sorimachi, S. Yoshinaga, T. Kovacs

Journal of Radioanalytical and Nuclear Chemistry 279 ( 1 ) 219 - 225 2009.1

Experimental system to evaluate the effective diffusion coefficient of radon

M. Hosoda, S. Tokonami, A. Sorimachi, J. Miroslaw, T. Ishikawa, Y. Yatabe, J. Yamada, S. Uchida

Review of Scientific Instruments 80 ( 1 ) 013501 2009.1

Influence of the presence of humidity, ambient aerosols and thoron on the detection responses of electret radon monitors.

A. Sorimachi, H. Takahashi, S. Tokonami

Radiation Measurements 44 ( 1 ) 111 - 115 2009.1

Isotopic composition of Uranium in soil and ground water samples collected around 30 km Chernobyl Exclusion Zone

S. K. Sahoo, S. Yoshida, S. Tokonami, H. Yonehara et.al

Radioprotection 44 ( 5 ) 785 - 790 2009.1

A simple technique for determining the equilibrium equivalent Thoron concentration using a CR-39 detector: Application in mineral treatment industry

C. Kranrod, S. Chanyotha, N. Chankow, S. Tokonami, T. Ishikawa, S. K. Sahoo

Radioprotection 44 ( 5 ) 301 - 304 2009

Passive measurements of thoron and its progeny in some dwellings in Ireland

Choncubhair Ó.N., Mc Laughlin J., Tokonami S

The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 16 - 19 2008.9

Radon in drinking water and cancer mortality: an ecological study in Japan

Yoshinaga, S., Ishikawa, T., Tokonami, S., Mizoue T., Narazaki, Y., Mizuno, S., Akiba, S.

The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 429 - 432 2008.9

Evaluation of gas-filled ionization chamber method for radon measurement at two reference facilities

Ishikawa T., Tokonami S., Kobayashi Y., Sorimachi A., Yatabe Y., Miyahara N.

The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 423 - 426 2008.9

Performance of NIRS thoron chamber system

Sorimachi A., Tokonami S., Takahashi H., Kobayashi Y.

The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 206 - 209 2008.9

The Japanese radon and thoron reference chambers

Tokonami S., Ishikawa T., Sorimachi A., Takahashi H., Miyahara N.

The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 202 - 205 2008.9

Measurement of indoor radon-222 and radon-220 concentrations in central Japan

Oka M., Shimo M., Tokonami S., Sorimachi A., Takahashi H., Ishikawa T.

The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 189 - 192 2008.9

Preliminary results of indoor radon/thoron concentrations and terrestrial gamma doses in Gejiu, Yunnan, China

Ishikawa T., Tokonami S., Sun Q., Kobayashi Y., Min X., Yoshinaga S.

The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 173 - 176 2008.9

Preliminary results of simultaneous radon and thoron tests in Ottawa

Chen, J., Tokonami, S., Sorimachi, A., Takahashi, H., Falcomer, R.

Radiation Protection Dosimetry 130 ( 2 ) 253 - 256 2008.1

A case study on the effect of water from groundwater sources on indoor radon levels

Y. Yasouka, T. Ishikawa, S. Tokonami, H. Takahashi, Y. Narazaki, M. Sinogi

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 275 ( 1 ) 165 - 172 2008.1

Determination of depleted uranium in environmental bio-monitor samples and soil from target sites in western Balkan region

Sarata K. Sahoo, Hiroko Enomoto, Shinji Tokonami, Tetsuo Ishikawa, Predrag Ujic, Igor Celikovic, Zora S. Zunic

NATURAL RADIATION ENVIRONMENT 1034 287 - + 2008

210Po and 210Pb inhalation dose by cigarette smoking in Gansu and Yunnan Provices, China

Tokonami, S., Kovacs, T., Yoshinaga, S., Kobayashi, Y. and Ishikawa, T

Japanese journal of Health Physics 43 ( 2 ) 131 - 134 2008

Calculation of dose conversion factors for thoron decay products

Tetsuo Ishikawa, Shinji Tokonami, Csaba Nemeth

JOURNAL OF RADIOLOGICAL PROTECTION 27 ( 4 ) 447 - 456 2007.12

Continuous measurements of bronchial exposure induced by radon decay products during inhalation

Kazuki Iwaoka, Shinji Tokonami, Hidenori Yonehara, Tetsuo Ishikawa, Masahiro Doi, Yosuke Kobayashi, Yoshinori Yatabe, Hiroyuki Takahashi, Yuji Yamada

REVIEW OF SCIENTIFIC INSTRUMENTS 78 ( 9 ) 093301 2007.9

Changes in atmospheric electrical conditions due to anomalous radon exhalation preceding large earthquakes

Y. Omori, Y. Yasuoka, H. Nagahama, Y. Kawada, T. Ishikawa, S. Tokonami, M. Shinogi

EASTEC symposium 2007: Dynamic Earth -its origin and future- (Sendai, Japan, 18-21 September, 2007). Organized by The 21st Century COE Program at Tohoku Univerisity, “Advanced Science and Technology Center for the Dynamic Earth”. Poster presentation 2007.9

A naturally ventilated accumulator for integrating measurements of radon flux from soil

Weihai Zhuo, Masahide Furukawa, Shinji Tokonami

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY 44 ( 8 ) 1100 - 1105 2007.8

Anomalous radon emanation linked to preseismic electromagnetic phenomena

Y. Omori, Y. Yasuoka, H. Nagahama, Y. Kawada, T. Ishikawa, S. Tokonami, M. Shinogi

NATURAL HAZARDS AND EARTH SYSTEM SCIENCES 7 ( 5 ) 629 - 635 2007

Airborne and waterborne radon concentrations in areas with use of groundwater supplies

T Ishikawa, S Tokonami, S Yoshinaga, Y Narazaki

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 267 ( 1 ) 85 - 88 2005.12

Applicability of the electrical low pressure impactor to size determination of aerosols attached to radon decay products

Y Yamada, S Tokonami, K Yamasaki

REVIEW OF SCIENTIFIC INSTRUMENTS 76 ( 6 ) 2005.6

Case-control study of residential radon and childhood leukemia in Japan: Results from preliminary analyses

S Yoshinaga, S Tokonami, S Akiba, H Nitta, A Kabuto

HIGH LEVELS OF NATURAL RADIATION AND RADON AREAS: RADIATION DOSE AND HEALTH EFFECTS 1276 233 - 235 2005

An intercomparison exercise for thoron gas measurement

T Ishikawa, A Cavallo, S Tokonami

HIGH LEVELS OF NATURAL RADIATION AND RADON AREAS: RADIATION DOSE AND HEALTH EFFECTS 1276 276 - 277 2005

Application of activated charcoal radon collectors in high humidity environments

T Iimoto, S Tokonami, Y Morishita, T Kosako

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 78 ( 1 ) 69 - 76 2005

Current studies on radon gas in Thailand

P Wanabongse, S Tokonami, S Bovornkitti

HIGH LEVELS OF NATURAL RADIATION AND RADON AREAS: RADIATION DOSE AND HEALTH EFFECTS 1276 208 - 209 2005

Airborne and waterborne radon concentrations in houses with the use of groundwater

T Ishikawa, S Yoshinaga, S Tokonami

HIGH LEVELS OF NATURAL RADIATION AND RADON AREAS: RADIATION DOSE AND HEALTH EFFECTS 1276 301 - 302 2005

Convenient methods for evaluation of indoor thoron progeny concentrations

WH Zhuo, S Tokonami

HIGH LEVELS OF NATURAL RADIATION AND RADON AREAS: RADIATION DOSE AND HEALTH EFFECTS 1276 219 - 220 2005

Bio-kinetics of radon ingested from drinking water

T Ishikawa, Y Narazaki, Y Yasuoka, S Tokonami, Y Yamada

RADIATION PROTECTION DOSIMETRY 105 ( 1-4 ) 65 - 70 2003

Deposition and clearance for radon progeny in the human respiratory tract

T Ishikawa, Y Yamada, K Fukutsu, S Tokonami

RADIATION PROTECTION DOSIMETRY 105 ( 1-4 ) 143 - 148 2003

Characteristics of radon and its progeny concentrations in air-conditioned office buildings in Tokyo

S Tokonami, M Furukawa, Y Shicchi, T Sanada, Y Yamada

RADIATION PROTECTION DOSIMETRY 106 ( 1 ) 71 - 76 2003

A simple passive monitor for integrating measurements of indoor thoron concentrations

WH Zhuo, S Tokonami, H Yonehara, Y Yamada

REVIEW OF SCIENTIFIC INSTRUMENTS 73 ( 8 ) 2877 - 2881 2002.8

Contribution from thoron on the response of passive radon detectors

S Tokonami, ML Yang, T Sanada

HEALTH PHYSICS 80 ( 6 ) 612 - 615 2001.6

Determination of the diffusion coefficient of unattached radon progeny with a graded screen array at the EML radon/aerosol chamber

S Tokonami

RADIATION PROTECTION DOSIMETRY 81 ( 4 ) 285 - 290 1999

Characteristics of major filters used for Rn-222 progeny measurements

Iimoto Takeshi, Fujimoto Kenzo, Tokonami Shinji, Kurosawa Ryuhei

RADIATION MEASUREMENTS 29 ( 2 ) 161 - 164 1998.4

Continuous Rn-220 concentration monitor using an electrostatic collection method

T Iimoto, Y Shirakata, S Tokonami, M Furukawa, R Kurosawa

RADIATION PROTECTION DOSIMETRY 77 ( 3 ) 185 - 190 1998

A new device to measure the activity size distribution of radon progeny in a low level environment

S Tokonami, F Takahashi, T Iimoto, R Kurosawa

HEALTH PHYSICS 73 ( 3 ) 494 - 497 1997.9

Calculation procedure of potential alpha energy concentration with continuous air sampling

Shinji Tokonami, Takeshi Ichiji, Takeshi Iimoto, Ryuhei Kurosawa

Health Physics 71 ( 6 ) 937 - 943 1996

Behavior of radon and its progeny at working place

S Tokonami, M Matsumoto, M Furukawa, K Fujimoto, K Fujitaka, R Kurosawa

IRPA9 - 1996 INTERNATIONAL CONGRESS ON RADIATION PROTECTION / NINTH INTERNATIONAL CONGRESS OF THE INTERNATIONAL RADIATION PROTECTION ASSOCIATION, PROCEEDINGS, VOL 2 B151 - B153 1996

Continuous radon monitor using a two-filter method

S Tokonami, T Iimoto, T Ichiji, K Fujitaka, R Kurosawa

RADIATION PROTECTION DOSIMETRY 63 ( 2 ) 123 - 126 1996

Continuous measurement of the equilibrium factor F and the unattached fraction f(p) of radon progeny in the environment

S Tokonami, T Iimoto, R Kurosawa

ENVIRONMENT INTERNATIONAL 22 ( 1 ) S611 - S616 1996

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