研究者詳細 - 床次　眞司

論文 - 床次　眞司

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Evaluation of stochastic method on track density analysis for passive radon measurement

Hu, J; Kranrod, C; Pradana, R; Musikawan, S; Omori, Y; Hosoda, M; Kodaira, S; Tokonami, S

APPLIED RADIATION AND ISOTOPES 225 111998 2025年11月

Radon and thoron in the ambient air of the caves in Bohol Island, Philippines

Panlaqui, AA; Ballesteros, FC Jr; Dean, KMR; Kranrod, C; Tokonami, S

NUCLEAR ENGINEERING AND TECHNOLOGY 57 ( 10 ) 2025年10月

Colorless and transparent composites with flexibility for enhanced X-ray shielding using glycerol and starch as matrix (vol 229, pg 121027, 2025)

Tokonami, R; Otani, K; Ando, K; Fujinuma, N; Osanai, M; Hosoda, M; Tokonami, S; Takahashi, T

INDUSTRIAL CROPS AND PRODUCTS 231 2025年09月

Thoron exhalation rate measurement-findings from a large worldwide intercomparison study

de With, G; Venoso, G; Maiorana, A; Di Carlo, C; Meisenberg, O; Guo, Q; Janik, M; Nugraha, ED; Bobbo, OM; Kranrod, C; Hosoda, M; Tokonami, S; Sahoo, BK; Kanse, SD; Tschiersch, J

RADIATION MEASUREMENTS 187 2025年09月

Thoron exposure in the radon-thoron prone area of the Adamawa Region, Cameroon (vol 213, 111498, 2024)

Bachirou, S; Saïdou; Mishra, R; Kranrod, C; Hosoda, M; Shah, J; Sapra, BK; Godfroy, KNM; Tokonami, S

APPLIED RADIATION AND ISOTOPES 221 111818 2025年07月

Colorless and transparent composites with flexibility for enhanced X-ray shielding using glycerol and starch as matrix

Tokonami, R; Otani, K; Ando, K; Fujinuma, N; Osanai, M; Hosoda, M; Tokonami, S; Takahashi, T

INDUSTRIAL CROPS AND PRODUCTS 229 121027 - 121027 2025年07月

Verification of the Effectiveness of Risk Communication Materials Using Natural Radiation Levels as a Reference Standard: Results from a Survey of First-Year Health Department Students

Kudo, H; Hosoda, M; Omori, Y; Tanaka, K; Osanai, M; Ohba, T; Amir, I; Tsubokura, M; Tokonami, S

SAFETY 11 ( 2 ) 2025年05月

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

Kheamsiri, K; Anderson, D; Tazoe, H; Okada, K; Otashiro, N; Kuwata, H; Kakiuchi, H; Hosoda, M; Kovács, T; Tokonami, S; Akata, N

ENVIRONMENTAL POLLUTION 372 126040 - 126040 2025年05月

Evaluating Soil Temperature Variations for Enhanced Radon Monitoring in Volcanic Regions

Janik, M; Hosoda, M; Tokonami, S; Omori, Y; Akata, N

ATMOSPHERE 16 ( 4 ) 460 - 460 2025年04月

Essential health risk communication for recovery after lifting evacuation orders following the Fukushima Daiichi nuclear power plant accident

Orita, M; Tanaka, K; Amir, I; Matsunaga, H; Kashiwazaki, Y; Xiao, X; Akata, N; Miura, T; Kashiwakura, I; Ito, N; Abe, T; Tamaki, T; Takamura, N; Tokonami, S; Tsubokura, M

SCIENTIFIC REPORTS 15 ( 1 ) 11071 2025年04月

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年03月

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

Anderson, D; Oda, Y; Taira, Y; Omori, Y; Tazoe, H; Akata, N; Kranrod, C; Yamada, R; Kuwata, H; Tamakuma, Y; Kudo, H; Osanai, M; Nishimura, N; Yasuoka, Y; Sanada, T; Hosoda, M; Tokonami, S

ENVIRONMENTAL SCIENCE & TECHNOLOGY 59 ( 10 ) 4906 - 4914 2025年03月

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

Musikawan, S; Poltabtim, W; Kheamsiri, K; Kranrod, C; Pluemjit, T; Aramrun, K; Omori, Y; Tazoe, H; Hosoda, M; Akata, N; Tokonami, S

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 334 ( 4 ) 2929 - 2935 2025年03月

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年02月

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

Autsavapromporn, N; Duangya, A; Klunklin, P; Chitapanarux, I; Kranrod, C; Jaikang, C; Monum, T; Paemanee, A; Tokonami, S

SCIENTIFIC REPORTS 15 ( 1 ) 5099 - 5099 2025年02月

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

Souffit, GD; François, K; Modibo, OB; Nugraha, ED; Emmanuel, NNIJ; Shah, JLLD; Mishra, R; Kranrod, C; Omori, Y; Hosoda, M; Sapra, BK; Saidou; Tokonami, S

AIR QUALITY ATMOSPHERE AND HEALTH 18 ( 5 ) 1289 - 1304 2025年02月

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

Susanto, V; Pradana, R; Nugraha, ED; Sumintadireja, P; Modibo, OB; Rosianna, I; Rahajeng, N; Ahmad, H; Kurniawan, R; Rixson, L; Yuningsih, A; Siregar, YDI; Saepuloh, A; Wahyudi, W; Tazoe, H; Akata, N; Tokonami, S

ENVIRONMENTS 12 ( 2 ) 51 - 51 2025年02月

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

Lesbek, A; Omori, Y; Bakhtin, M; Kazymbet, P; Tokonami, S; Altaeva, N; Ibrayeva, D; Kashkinbayev, Y

BIOMEDICINES 13 ( 2 ) 499 - 499 2025年02月

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

Pradana, R; Nugraha, ED; Omori, Y; Shilfa, SN; Winarni, ID; Wahyudi, W; Untara, U; Kurnia, I; Safitri, R; Kranrod, C; Sasaki, M; Devriany, A; Rachman, AN; Kurniawan, R; Ahmad, H; Muniroh, M; Islam, F; Rosianna, I; Nurokhim, N; Makhsun, M; Widodo, S; Prasetio, H; Hosoda, M; Tokonami, S

SCIENTIFIC REPORTS 14 ( 1 ) 30731 2024年12月

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年12月

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年12月

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年12月

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年12月

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年12月

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

Taoka, M; Kudo, R; Yamada, R; Omori, Y; Tanaka, K; Hosoda, M; Tokonami, S

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 288 117394 - 117394 2024年12月

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

Autsavapromporn, N; Duangya, A; Klunklin, P; Chitapanarux, I; Kranrod, C; Jaikang, C; Monum, T; Paemanee, A; Tokonami, S

CANCERS 16 ( 24 ) 2024年12月

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年12月

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

Akata, N; Ohno, K; Kuwata, H; Kheamsiri, K; Yoshinaka, Y; Yamada, R; Kitayama, Y; Aizawa, S; Nakasone, S; Ishimine, A; Tanaka, M; Shiroma, Y; Tokonami, S; Furukawa, M

RADIATION PROTECTION DOSIMETRY 200 ( 16-18 ) 1792 - 1796 2024年11月

The Preface

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

RADIATION PROTECTION DOSIMETRY 200 ( 16-18 ) 1493 - 1494 2024年11月

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

Hu, J; Kranrod, C; Omori, Y; Hosoda, M; Tokonami, S

RADIATION PROTECTION DOSIMETRY 200 ( 16-18 ) 1720 - 1725 2024年11月

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

Yasuoka, Y; Takemoto, J; Omori, Y; Kawamoto, N; Goda, N; Nagahama, H; Muto, J; Tokonami, S; Hosoda, M; Iimoto, T; Mukai, T

RADIATION PROTECTION DOSIMETRY 200 ( 16-18 ) 1701 - 1705 2024年11月

Evaluation of an ionization chamber characteristics for 222Rn calibration

Furukawa, R; Janik, M; Kodaira, S; Hashimoto, H; Omori, Y; Tokonami, S; Hosoda, M; Shimizu, M; Manabe, S; Matsumoto, T; Shimodan, C; Sato, Y; Harano, H

RADIATION PROTECTION DOSIMETRY 200 ( 16-18 ) 1696 - 1700 2024年11月

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

Iwaoka, K; Palad, LJH; Feliciano, CP; Tamakuma, Y; Hosoda, M; Tokonami, S; Kanda, R; Moritake, T

RADIATION PROTECTION DOSIMETRY 200 ( 16-18 ) 1711 - 1714 2024年11月

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

Kiso, M; Taoka, M; Sampei, A; Hashimoto, H; Abe, Y; Oda, Y; Omori, Y; Yamada, R; Hosoda, M; Kranrod, C; Ishikawa, T; Tokonami, S

RADIATION PROTECTION DOSIMETRY 200 ( 16-18 ) 1671 - 1675 2024年11月

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

Thumvijit, T; Somboon, S; Tapanya, M; Ruktinnakorn, K; Kranrod, C; Tokonami, S; Chanyotha, S; Sriburee, S

RADIATION PROTECTION DOSIMETRY 200 ( 16-18 ) 1715 - 1719 2024年11月

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

Karunakara, N; Vijith, AP; Mishra, R; Sahoo, BK; Janik, M; Kumara, S; Sapra, BK; Tokonami, S; Kranrod, C; Chandrasekaran, S; Chitra, N; Kim, SH; Yoo, J; Zhao, C; Chen, B; Kim, HG; Kim, JI; Holecek, J; Cuong, LD

RADIATION MEASUREMENTS 178 107295 - 107295 2024年11月

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

Bachirou, S; Saidou; Mishra, R; Kranrod, C; Hosoda, M; Jalaluddin, S; Sapra, BK; Njock, MGK; Tokonami, S

APPLIED RADIATION AND ISOTOPES 213 111498 - 111498 2024年11月

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

Sime, FK; Gondji, DS; Rosianna, I; Nugraha, ED; Modibo, OB; Kranrod, C; Omori, Y; Akata, N; Hosoda, M; Saïdou; Tokonami, S

APPLIED SCIENCES-BASEL 14 ( 22 ) 10538 - 10538 2024年11月

Transparent X-ray Shielding Solutions with Various Metal Ions

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

ACS OMEGA 9 ( 44 ) 44770 - 44777 2024年10月

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年10月

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年10月

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年09月

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

Kashkinbayev, Y; Bakhtin, M; Kazymbet, P; Lesbek, A; Kazhiyakhmetova, B; Hoshi, M; Altaeva, N; Omori, Y; Tokonami, S; Sato, H; Ibrayeva, D

ATMOSPHERE 15 ( 9 ) 1067 - 1067 2024年09月

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年09月

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

13 ( 2 ) 52 - 59 2024年08月

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年08月

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年08月

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年08月

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年08月

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年08月

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年08月

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年08月

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

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

Radiation Environment and Medicine 13 ( 2 ) 52 - 59 2024年08月

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年08月

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年08月

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年08月

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年06月

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年06月

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年06月

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年06月

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

Taamte Jacob Mbarndouka, Noube Michaux Kountchou, Signing Vitrice Ruben Folifack, Hamadou Yerima Abba, Masahiro Hosoda, Saidou, Tokonami Shinji

JOURNAL OF INSTRUMENTATION 19 ( 5 ) P05036 - P05036 2024年05月

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年02月

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

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

POLYMER COMPOSITES 45 ( 8 ) 7519 - 7529 2024年02月

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年02月

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年02月

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年02月

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

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

RADIATION PROTECTION DOSIMETRY ncad314 ( 5 ) 437 - 447 2024年01月

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

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

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 31 ( 5 ) 7818 - 7827 2024年01月

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

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

ATMOSPHERE 14 ( 12 ) 1708 - 1708 2023年12月

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

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

GEOSCIENCES 13 ( 12 ) 388 2023年12月

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年11月

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

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

RADIATION PROTECTION DOSIMETRY 199 ( 18 ) 2203 - 2206 2023年11月

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

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

RADIATION PROTECTION DOSIMETRY 199 ( 18 ) 2233 - 2237 2023年11月

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

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

RADIATION PROTECTION DOSIMETRY 199 ( 18 ) 2179 - 2182 2023年11月

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

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

RADIATION PROTECTION DOSIMETRY 199 ( 18 ) 2244 - 2247 2023年11月

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

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

RADIATION PROTECTION DOSIMETRY 199 ( 18 ) 2207 - 2211 2023年11月

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

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

RADIATION AND ENVIRONMENTAL BIOPHYSICS 62 ( 4 ) 427 - 439 2023年11月

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

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

RADIATION MEASUREMENTS 168 107012 - 107012 2023年11月

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

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

RADIATION PROTECTION DOSIMETRY 199 ( 15-16 ) 2000 - 2004 2023年10月

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

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

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 333 ( 6 ) 2999 - 3005 2023年09月

Expectation for Utilizing Supercomputers in Natural Radiation Research

Iwaoka Kazuki, Hosoda Masahiro, Tokonami Shinji

Radiation Environment and Medicine 12 ( 2 ) 107 - 110 2023年08月

Expectation for Utilizing Supercomputers in Natural Radiation Research

Kazuki Iwaoka, Masahiro Hosoda, Shinji Tokonami

Radiation Environment and Medicine 12 ( 2 ) 107 - 110 2023年08月

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

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

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 30 ( 38 ) 89280 - 89292 2023年08月

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

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

NUCLEAR ENGINEERING AND TECHNOLOGY 55 ( 8 ) 3046 - 3053 2023年08月

Tritium concentration in bottled drinking water and internal dose assessment

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

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 333 ( 5 ) 2597 - 2603 2023年07月

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

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

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 333 ( 5 ) 2557 - 2565 2023年07月

Residential radon exposure in Astana and Aqsu, Kazakhstan

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

JOURNAL OF RADIOLOGICAL PROTECTION 43 ( 2 ) 023501 - 023501 2023年06月

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

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

JOURNAL OF RADIATION PROTECTION AND RESEARCH 48 ( 2 ) 59 - 67 2023年06月

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

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

PLOS ONE 18 ( 5 ) e0286267 - e0286267 2023年05月

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

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

ANTIOXIDANTS 12 ( 5 ) 1119 - 1119 2023年05月

弘前大学高度被ばく医療支援センターにおける内部被ばく線量評価のためのバイオアッセイへの取り組み

山田椋平, 小山内理, 赤田尚史, 田副博文, 辻口貴清, 伊藤勝博, 花田裕之, 床次眞司, 柏倉幾郎

保健物理 58 ( 1 ) 27 - 30 2023年04月

Status of Radon Traceability and Calibration Techniques for Radon Gas

Yuki Tamakuma, Chutima Kranrod, Masahiro Hosoda, Shinji Tokonami

Radiation Environment and Medicine 12 ( 1 ) 12 - 24 2023年02月

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

Poltabtim W, Musikawan S, Thumwong A, Omori Y, Kranrod C, Hosoda M, Saenboonruang K, Tokonami S

International journal of environmental research and public health 20 ( 3 ) 2657 - 2657 2023年02月

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

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

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY 104 ( 18 ) 1 - 13 2023年01月

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

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

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 332 ( 1 ) 167 - 172 2023年01月

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年12月

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

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

ANTIOXIDANTS 11 ( 12 ) 2384 - 2384 2022年12月

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

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

POLYMERS 14 ( 21 ) 4481 - 4481 2022年11月

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

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

RADIATION PROTECTION DOSIMETRY 198 ( 13-15 ) 1143 - 1149 2022年09月

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

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

RADIATION PROTECTION DOSIMETRY 198 ( 13-15 ) 904 - 908 2022年09月

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年09月

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

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

ANTIOXIDANTS 11 ( 9 ) 1710 2022年09月

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年09月

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年09月

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年08月

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年08月

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年08月

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年08月

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年07月

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年06月

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

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

LIFE-BASEL 12 ( 6 ) 853 - 853 2022年06月

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年06月

Detection of biological responses to low-dose radiation in humans

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

FREE RADICAL BIOLOGY AND MEDICINE 184 196 - 207 2022年05月

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

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

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 1030 166475 - 166475 2022年05月

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

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

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 244 106830 - 106830 2022年04月

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年03月

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年03月

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

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

Radiation Environment and Medicine 11 ( 1 ) 16 - 20 2022年02月

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

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

Radiation Environment and Medicine 11 ( 1 ) 7 - 15 2022年02月

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

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

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 19 ( 3 ) 1758 - 1758 2022年02月

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年01月

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

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

TOXICS 10 ( 1 ) 39 - 39 2022年01月

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年

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

床次眞司

Toxics 10 39 2022年

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

Odongo WOG, Chege M, Hashim N, Tokonami S, Chutima K, Rotich C

TheScientificWorldJournal 2021 1 - 7 2021年12月

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

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

ATMOSPHERE 12 ( 12 ) 1648 - 1648 2021年12月

Key outcome summaries of the scientific programme of the IRPA15 congress

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

JOURNAL OF RADIOLOGICAL PROTECTION 41 ( 4 ) S490 - S505 2021年12月

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

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

FRONTIERS IN PUBLIC HEALTH 9 764201 2021年11月

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

Autsavapromporn N, Klunklin P, Chitapanarux I, Jaikang C, Chewaskulyong B, Sripan P, Hosoda M, Tokonami S

Life (Basel, Switzerland) 2021 ( 11 ) 1273 2021年11月

RADON AND THORON EXHALATION RATES FROM EARTHEN BUILDING MATERIALS USED IN HIGH BACKGROUND RADIATION AREAS OF HOMA AND RURI, KENYA

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

RADIATION PROTECTION DOSIMETRY 197 ( 1 ) 12 - 18 2021年11月

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年08月

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年08月

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年08月

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年08月

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

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

ATMOSPHERE 12 ( 8 ) 1024 - 1024 2021年08月

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

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

ATMOSPHERE 12 ( 8 ) 971 - 971 2021年07月

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

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

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 330 ( 3 ) 1437 - 1444 2021年07月

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

Nugraha ED, Hosoda M, Kusdiana, Untara, Mellawati J, Nurokhim, Tamakuma Y, Ikram A, Syaifudin M, Yamada R, Akata N, Sasaki M, Furukawa M, Yoshinaga S, Yamaguchi M, Miura T, Kashiwakura I, Tokonami S

Scientific reports 11 ( 1 ) 1478 2021年07月

Support activities in Namie Town, Fukushima undertaken by Hirosaki University.

Tokonami S, Miura T, Akata N, Tazoe H, Hosoda M, Chutima K, Kudo H, Ogura K, Fujishima Y, Tamakuma Y, Shimizu M, Kikuchi K, Kashiwakura I

Annals of the ICRP 50 ( 1_suppl ) 014664532110068 - 014664532110068 2021年06月

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

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

SCIENTIFIC REPORTS 11 ( 1 ) 6162 2021年03月

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年02月

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年02月

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 and Shinji Tokonami

International journal of Environmental Research and Public Health 2021 ( 18 ) 978 - 1489 2021年02月

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年02月

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

Ogura K, Hosoda M, Tamakuma Y, Suzuki T, Yamada R, Negami R, Tsujiguchi T, Yamaguchi M, Shiroma Y, Iwaoka K, Akata N, Shimizu M, Kashiwakura I, Tokonami S

International journal of environmental research and public health 18 ( 3 ) 978 - 978 2021年01月

Radon Activity Concentration 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 and Shinji Tokonami

International journal of Environmental Research and Public Health 2021 ( 18 ) 920 - 920 2021年01月

A unique high natural background radiation area - Dose assessment and perspectives.

Hosoda M, Nugraha ED, Akata N, Yamada R, Tamakuma Y, Sasaki M, Kelleher K, Yoshinaga S, Suzuki T, Rattanapongs CP, Furukawa M, Yamaguchi M, Iwaoka K, Sanada T, Miura T, Kusdiana, Iskandar D, Pudjadi E, Kashiwakura I, Tokonami S

The Science of the total environment 750 142346 - 142346 2021年01月

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 environmental radioactivity 229-230 106506 - 106506 2021年01月

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

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

JOURNAL OF RADIATION RESEARCH 62 ( 1 ) 67 - 72 2021年01月

青森県六ヶ所村及び弘前市におけるヨウ素-129降下量の時系列変化

長谷川英尚, 柿内秀樹, 赤田尚史, 床次眞司

日本地球化学会年会要旨集 68 ( 0 ) 182 2021年

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年

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年

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年

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年

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 & PHARMACEUTICAL BULLETIN 43 ( 12 ) 1876 - 1883 2020年12月

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

Tokonami S

International journal of environmental research and public health 17 ( 23 ) 8769 - 8769 2020年11月

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

Hu J, Yang G, Kranrod C, Iwaoka K, Hosoda M, Tokonami S

International journal of environmental research and public health 17 ( 22 ) 8569 - 8569 2020年11月

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

Hosoda Masahiro, Tokonami Shinji, Suzuki Takahito, Janik Miroslaw

RADIATION MEASUREMENTS 138 106402 - 106402 2020年11月

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年10月

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年10月

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年09月

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

Radiation Environment and Medicine 9 ( 2 ) 98 - 104 2020年08月

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

Radiation Environment and Medicine 9 ( 2 ) 70 - 78 2020年08月

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年08月

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年08月

CAESIUM RETENTION CHARACTERISTICS OF KNIFC-PAN RESIN FROM RIVER WATER.

Hegedűs M, Tazoe H, Yang G, Tamakuma Y, Hosoda M, Akata N, Tokonami S

Radiation protection dosimetry 190 ( 3 ) 320 - 323 2020年08月

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年08月

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

(1) 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年08月

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年08月

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年07月

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

Kinahan A, Hosoda M, Kelleher K, Tsujiguchi T, Akata N, Tokonami S, Currivan L, León Vintró L

International journal of environmental research and public health 17 ( 14 ) 4992 - 4992 2020年07月

Investigation of local government’spreparation 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年07月

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, Masahro Hosoda and Shinji Tokoami

International Journal of Environmental Research and Public Health 2020 17 ( 11 ) 4141 - 4141 2020年06月

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年05月

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 and Shinji Tokonami

International Journal of Environmental Research and Public Health 2020 13 ( 9 ) 3178 - 3178 2020年05月

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

9 ( 2 ) 70 - 78 2020年05月

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

Ohba T, Ishikawa T, Nagai H, Tokonami S, Hasegawa A, Suzuki G

Scientific reports 10 ( 1 ) 6262 - 6262 2020年04月

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

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

GROUNDWATER FOR SUSTAINABLE DEVELOPMENT 10 100315 - 100315 2020年04月

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年04月

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年02月

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年02月

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年02月

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年02月

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, Tchuente Siaka Yvette Flore, Hamadou Issa, Takahito Suzuki, Hiromi Kudo, Oumarou Bouba.

Frontiers in Public Health 2020年02月

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年02月

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年02月

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年02月

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年02月

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年01月

Cesium concentrations in various environmental media at Namie, Fukushima

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

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 323 ( 1 ) 197 - 204 2020年01月

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年

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年

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年

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年

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年

CAR-BORNE SURVEY OF NATURAL BACKGROUND GAMMA RADIATION IN WESTERN, EASTERN AND SOUTHERN THAILAND.

Kranrod C, Chanyotha S, Pengvanich P, Kritsananuwat R, Ploykrathok T, Sriploy P, Hosoda M, Tokonami S

Radiation protection dosimetry 188 ( 2 ) 174 - 180 2019年12月

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年12月

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

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

International journal of environmental research and public health 10 ( 16 ) 24 - 5019 2019年12月

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年12月

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年11月

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年11月

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年11月

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

Sohrabi Mehdi, Kashiwakura Ikuo, Tokonami Shinji

RADIATION PROTECTION DOSIMETRY 184 ( 3-4 ) 275 - 276 2019年10月

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年09月

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年09月

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年09月

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年09月

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年09月

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年09月

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年08月

Natural radiation exposure to the public in mining and ore bearing regions of Cameroon

Saïdou, Shinji Tokonami, Masahiro Hosoda, Ndjana Nkoulou II Joseph Emmanuel1, Naofumi Akata, Tchuente Siaka Yvette Flore, Oumar Bobbo Modibo, Bineng Guillaume Samuel and Takoukam Soh Serge Didier

Radiat. Prot. Dosim. 184 ( 184 ) 391 - 396 2019年07月

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年07月

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年06月

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年06月

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

Margaret Chege, Nadir Hashim, Catherine Nyambura, AmiduMustapha, Masahiro Hosoda, Shinji Tokonami

Frontiers in Public Health 7 ( 113 ) 113 2019年05月

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年05月

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年05月

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年05月

Evaluation of a radon air monitor in the measurement of radon concentration in water in comparison with a liquid scintillation counter

S. Higuchi, Y. Kamishiro, M. Ishihara, Y. Yasuoka, Y. Mori, M. Hosoda, K. Iwaoka, S. Tokonami, R. Takahashi, M. Janik, J. Muto, H. Nagahama, T. Mukai

Radiat. Prot. Dosim. 184 ( 184 ) 426 - 429 2019年04月

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.

Protection Dosimetry (2019) 184 ( 184 ) 496 - 499 2019年04月

Measurement of uranium in urine, hair and nails in subjects of Niska Banja town, A high natural background radiation area of Serbia

Z. S. Zunic, L. Benedik, R. Kritsananuwat, N. Veselinovic, S. Tokonami, H. Arae, Z. Stojabovska and S. K. Sahoo.

Protection Dosimetry (2019) 184 ( 184 ) 319 - 323 2019年04月

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年04月

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年04月

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

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

Protection Dosimetry (2019) 184 ( 184 ) 363 - 367 2019年04月

市販の大気中放射性エアロゾル捕集用フィルタの表面捕集効率及び流量の安定性の評価

玉熊佑紀, 山田椋平, 岩岡和輝, 細田正洋, 床次眞司

保健物理 54 ( 1 ) 5 - 12 2019年04月

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年04月

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年04月

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年04月

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年04月

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

Joseph Emmanuel Ndjana Nkoulou II, Louis Ngoa Engola, Saïdou, Masahiro Hosoda, Daniel Bongue, Takahito Suzuki, Hiromi Kudo, Moïse Godfroy Kwato Njock, Shinji Tokonami

Radiation Protection Dosimetry 185 ( 3 ) ncz026 - 401 2019年03月

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年02月

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年02月

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

Radiat. Prot. Dosim. 2019年02月

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年02月

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年02月

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

Hosoda M, Iwaoka K, Tokonami S, Tamakuma Y, Shiroma Y, Fukuhara T, Imajyo Y, Taniguchi J, Akata N, Osanai M, Tsujiguchi T, Yamaguchi M, Kashiwakura I

Health physics 116 ( 1 ) 81 - 87 2019年01月

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年01月

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年11月

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年11月

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

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

Int. J. Environ. Res. Public Health 2018 15 ( 10 ) 2152 2018年09月

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

S. Tokonami, M. Hosoda

Radiation Measurements 119 74 - 79 2018年09月

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年05月

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年03月

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年02月

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年02月

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年01月

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

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

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

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

保健物理 53 ( 1 ) 5 - 11 2018年

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年12月

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年09月

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年08月

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年08月

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年08月

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年08月

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年06月

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年03月

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年03月

Characteristic of thoron (220Rn) in environment.

Hosoda M, Kudo H, Iwaoka K, Yamada R, Suzuki T, Tamakuma Y, Tokonami S

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 120 ( 120 ) 7 - 10 2017年02月

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年

Consideration on the Necessity of Tritium Limit in Foods in Japan — Perspective on the Current Food Regulation

IWAOKA Kazuki, AKATA Naofumi, HOSODA Masahiro, TOKONAMI Shinji

Plasma and Fusion Research 12 ( 0 ) 1305031 - 1305031 2017年

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年12月

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年12月

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年11月

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年11月

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年10月

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年10月

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年08月

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年08月

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年08月

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年07月

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年06月

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年04月

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年03月

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年03月

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年03月

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年02月

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

Sorimachi A, Janik M, Tokonami S, Ishikawa T

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 107 145 - 151 2016年01月

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年11月

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年11月

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年11月

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年11月

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年11月

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年11月

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年11月

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年11月

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年11月

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

J Radioanal Nucl Chem 306 ( 1 ) 277 - 281 2015年10月

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年10月

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年10月

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年10月

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年09月

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年08月

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年08月

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

Radiation Emergency Medicine 4 ( 2 ) 29 - 34 2015年08月

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年07月

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年07月

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年07月

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年06月

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年04月

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年03月

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年02月

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年02月

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年02月

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年10月

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年09月

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

Sorimachi A, Ishikawa T, Tokonami S

The Review of scientific instruments 85 ( 9 ) 095104 2014年09月

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年08月

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年07月

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年02月

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年02月

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年01月

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年09月

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年09月

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年08月

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年08月

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年08月

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年07月

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年07月

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年06月

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年05月

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年04月

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年03月

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年03月

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年02月

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年02月

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年01月

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

Iwaoka K, Hosoda M, Tabe H, Ishikawa T, Tokonami S, Yonehara H

Health physics 104 ( 1 ) 41 - 50 2013年01月

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

Hosoda M, Tokonami S, Tazoe H, Sorimachi A, Monzen S, Osanai M, Akata N, Kakiuchi H, Omori Y, Ishikawa T, Sahoo SK, Kovács T, Yamada M, Nakata A, Yoshida M, Yoshino H, Mariya Y, Kashiwakura I

Scientific reports 3 2283 - 2283 2013年

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

Kakiuchi H, Akata N, Hasegawa H, Ueda S, Tokonami S, Yamada M, Hosoda M, Sorimachi A, Tazoe H, Noda K, Hisamatsu S

Scientific reports 2 947 2012年12月

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年11月

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年09月

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年08月

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年08月

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年08月

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年08月

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年08月

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年08月

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年08月

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年08月

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年08月

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年07月

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年06月

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年06月

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年05月

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年04月

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年04月

An intercomparison for NIRS and NYU passive thoron gas detectors at NYU.

Sorimachi A, Ishikawa T, Tokonami S, Chittaporn P, Harley NH

Health physics 102 ( 4 ) 419 - 424 2012年04月

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

Chen J, Moir D, Sorimachi A, Janik M, Tokonami S

Radiation protection dosimetry 149 ( 2 ) 155 - 158 2012年04月

Cancer and non-cancer mortality among Inhabitants in the high background radiation area of Yangjiang, China (1979-1998).

Tao Z, Akiba S, Zha Y, Sun Q, Zou J, Li J, Liu Y, Yuan Y, Tokonami S, Morishoma H, Koga T, Nakamura S, Sugahara T, Wei L

Health physics 102 ( 2 ) 173 - 181 2012年02月

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年01月

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年01月

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年

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年

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年

3F1313 福島県における放射性エアロゾルの粒径分布測定(5物質-2粒子状物質,一般研究発表)

反町篤行, 岡光昭, 細田正洋, 田副博文, 床次眞司, 山田正俊, 柏倉幾郎

大気環境学会年会講演要旨集 ( 53 ) 2012年

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年11月

An update on thoron exposure in Canada with simultaneous ²²²Rn and ²²⁰Rn measurements in Fredericton and Halifax.

Chen J, Moir D, Pronk T, Goodwin T, Janik M, Tokonami S

Radiation protection dosimetry 147 ( 4 ) 541 - 547 2011年11月

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年10月

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年09月

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年07月

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年05月

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年04月

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年04月

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年03月

Characteristics of thoron and thoron progeny in Canadian homes.

Chen J, Moir D, Sorimachi A, Tokonami S

Radiation and environmental biophysics 50 ( 1 ) 85 - 89 2011年03月

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年02月

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年02月

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年02月

Development and application of a continuous measurement system for radon exhalation rate.

Hosoda M, Ishikawa T, Sorimachi A, Tokonami S, Uchida S

The Review of scientific instruments 82 ( 1 ) 015101 - 015101-4 2011年01月

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年01月

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年01月

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年12月

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年10月

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年10月

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年10月

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年09月

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年09月

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年09月

WHY IS 220RN (THORON) MEASUREMENT IMPORTANT?

Shinji Tokonami

Radiation Protection Dosimetry 141 ( 4 ) 335 - 339 2010年09月

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年09月

THORON EXHALATION RATES IN AREAS OF JAPAN

Michikuni Shimo, Yuu Ishimori, Masahiro Hosoda, Shinji Tokonami

Radiation Protection Dosimetry 141 ( 4 ) 473 - 476 2010年09月

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年09月

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年09月

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年09月

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年09月

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年09月

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年09月

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年08月

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年07月

An investigation on radon and thoron response of alpha-track detectors used in the Winnipeg case-control study.

Chen J, Walker B, Sorimachi A, Takahashi H, Tokonami S

Radiation protection dosimetry 138 ( 1 ) 83 - 86 2010年01月

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年01月

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年12月

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年11月

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年10月

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年08月

Thoron in the environment and its related issues

S. Tokonami

Indian Journal of Physics 83 ( 6 ) 777 - 785 2009年08月

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年06月

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年06月

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年06月

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年06月

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年06月

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年06月

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年05月

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年04月

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年04月

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年03月

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年03月

Natural and Artificial Sources of Radioactivity in Poland

M. Janik, S. Tokonami

Japanese Journal of Health Physics 44 ( 1 ) 116 - 121 2009年03月

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年03月

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年03月

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年03月

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年01月

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年01月

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年01月

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年01月

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年01月

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年

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年09月

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年09月

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年09月

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年09月

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年09月

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年09月

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年09月

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年01月

A case study on the effect of water from groundwater sources on indoor radon levels.”

Yumi Yasuoka, Tetsuo Ishikawa, Shinji Tokonami, Hiroyuki Takahashi, Yukinori Narazaki, Masaki Shinogi

Journal of Radioanalytical and Nuclear Chemistry 275 ( 1 ) 165 - 172 2008年01月

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年

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年

Calculation of dose conversion factors for thoron decay products.

Ishikawa T, Tokonami S, Nemeth C

Journal of radiological protection : official journal of the Society for Radiological Protection 27 ( 4 ) 447 - 456 2007年12月

Continuous measurements of bronchial exposure induced by radon decay products during inhalation.

Iwaoka K, Tokonami S, Yonehara H, Ishikawa T, Doi M, Kobayashi Y, Yatabe Y, Takahashi H, Yamada Y

The Review of scientific instruments 78 ( 9 ) 093301 2007年09月

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年09月

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年08月

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年

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年12月

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年06月

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年

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年

Application of activated charcoal radon collectors in high humidity environments.

Iimoto T, Tokonami S, Morishita Y, Kosako T

Journal of environmental radioactivity 78 ( 1 ) 69 - 76 2005年

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年

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年

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年

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年

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年

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年

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年08月

Contribution from thoron on the response of passive radon detectors

S Tokonami, ML Yang, T Sanada

HEALTH PHYSICS 80 ( 6 ) 612 - 615 2001年06月

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年

Characteristics of Major Filters Used for 222Rn Progeny Measurements(共著)

Iimoto Takeshi, Fujimoto Kenzo, Tokonami Shinji, Kurosawa Ryuhei

Radiation Measurements 29 ( 2 ) 161 - 164 1998年04月

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年

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年09月

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年

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年

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年

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年

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