Papers - OMORI Yasutaka
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Evaluating soil temperature variations for enhanced radon monitoring in volcanic regions
Miroslaw Janik, Mashiro Hosoda, Shinji Tokonami, Yasutaka Omori, Naofumi Akata
Atmosphere 16 ( 4 ) 460 - 460 2025.4
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Fukushima’s Tap and Groundwater a Decade after the Nuclear Accident with Radiocesium, Tritium, and Radon
Donovan Anderson, Yuki Oda, Yasuyuki Taira, Yasutaka Omori, Hirofumi Tazoe, Naofumi Akata, Chutima Kranrod, Ryohei Yamada, Haruka Kuwata, Yuki Tamakuma, Hiromi Kudo, Minoru Osanai, Natsuki Nishimura, Yumi Yasuoka, Tetsuya Sanada, Masahiro Hosoda, Shinji Tokonami
Environmental Science & Technology 59 ( 10 ) 4906 - 4914 2025.3
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Natural gamma dose rate and radioactivity concentrations at a former tin mining area in Kanchanaburi, Thailand
Saowarak Musikawan, Worawat Poltabtim, Khemruthai Kheamsiri, Chutima Kranrod, Theerawat Pluemjit, Kitkawin Aramrun, Yasutaka Omori, Hirofumi Tazoe, Masahiro Hosoda, Naofumi Akata, Shinji Tokonami
Journal of Radioanalytical and Nuclear Chemistry 334 2929 - 2935 2025.3
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Systematic Review and Meta-Analysis of Inflammatory Biomarkers in Individuals Exposed to Radon
Anel Lesbek, Yasutaka Omori, Meirat Bakhtin, Polat Kazymbet, Shinji Tokonami, Nursulu Altaeva, Danara Ibrayeva, Yerlan Kashkinbayev
Biomedicines 13 ( 2 ) 499 - 499 2025.2
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Revisiting the influence of the equilibrium factor and the contribution of Rn, Tn and their progeny in dose assessment
Gondji Dieu Souffit, Koyang François, Oumar Bobbo Modibo, Eka Djatnika Nugraha, Ndjana Nkoulou II Joseph Emmanuel, Jalaluddin Shah, Rosaline Mishra, Chutima Kranrod, Yasutaka Omori, Masahiro Hosoda, Balvinder K Sapra, Saïdou, Shinji Tokonami
Air Quality, Atmosphere & Health 2025.2
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Outline of the Activity Report of the Emergency Monitoring Committee
HOSODA Masahiro, OMORI Yasutaka, ORITA Makiko, SAITO Kimiaki, SANADA Tetsuya, TAKEDA Akira, TANI Kotaro, TSUJIGUCHI Takakiyo, HIRAO Shigekazu, HOKAMA Tomonori, MIKAMI Satoshi, YAMADA Takahiro
Japanese Journal of Health Physics 59 ( 4 ) 206 - 207 2024.12
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Public exposure from inhalation of radon and thoron around the tin mine and smelter areas in Bangka, Indonesia
Radhia Pradana, Eka Djatnika Nugraha, Yasutaka Omori, Sharah Nataz Shilfa, Ilma Dwi Winarni, Wahyudi Wahyudi, Untara Untara, Irwan Kurnia, Rini Safitri, Chutima Kranrod, Michiya Sasaki, Ade Devriany, Agus Nur Rachman, Rusbani Kurniawan, Haeranah Ahmad, Muflihatul Muniroh, Fahrul Islam, Ilsa Rosianna, Nurokhim Nurokhim, Makhsun Makhsun, Susilo Widodo, Heru Prasetio, Masahiro Hosoda, Shinji Tokonami
Scientific Reports 14 ( 1 ) 30731 - 30731 2024.12
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Structure shielding of school and gymnasium buildings against fallout gamma radiation from the Fukushima Daiichi Nuclear Power Plant accident
Manaya Taoka, Rui Kudo, Ryohei Yamada, Yasutaka Omori, Kazutaka Tanaka, Masahiro Hosoda, Shinji Tokonami
Ecotoxicology and Environmental Safety 288 117394 - 117394 2024.12
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Ecological and health risks from trace elements contamination in soils at the rutile bearing area of Akonolinga, Cameroon
Fayette Kitcha Sime, Dieu Souffit Gondji, Ilsa Rosianna, Eka Djatnika Nugraha, Oumar Bobbo Modibo, Chutima Kranrod, Yasutaka Omori, Naofumi Akata, Masahiro Hosoda, Saïdou, Shinji Tokonami
Applied Sciences 14 ( 22 ) 10538 - 10538 2024.11
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Radiation dose estimation for indoor radon, thoron and their progenies using a stochastic method—a small-scale survey in Wuhan, China
Jun Hu, Chutima Kranrod, Yasutaka Omori, Masahiro Hosoda, Shinji Tokonami
Radiation Protection Dosimetry 200 ( 16-18 ) 1720 - 1725 2024.11
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Practical cut-off value for radon concentration in indoor air using an activated-charcoal radon collector
Yumi Yasuoka, June Takemoto, Yasutaka Omori, Nanaho Kawamoto, Nao Goda, Hiroyuki Nagahama, Jun Muto, Shinji Tokonami, Masahiro Hosoda, Takeshi Iimoto, Takahiro Mukai
Radiation Protection Dosimetry 200 ( 16-18 ) 1701 - 1705 2024.11
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Evaluation of an ionization chamber characteristics for 222Rn calibration
Rio Furukawa, Miroslaw Janik, Satoshi Kodaira, Hiroki Hashimoto, Yasutaka Omori, Shinji Tokonami, Masahiro Hosoda, Morihito Shimizu, Seiya Manabe, Tetsuro Matsumoto, Chihiro Shimodan, Yasushi Sato, Hideki Harano
Radiation Protection Dosimetry 200 ( 16-18 ) 1696 - 1700 2024.11
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Effect of sampling face velocity on the ultrafine particle surface collection efficiency of a cellulose membrane filter and a cellulose-glass fiber filter for environmental airborne radioactivity monitoring
Mizuki Kiso, Manaya Taoka, Aoi Sampei, Hiroki Hashimoto, Yuki Abe, Yuki Oda, Yasutaka Omori, Ryohei Yamada, Masahiro Hosoda, Chutima Kranrod, Tetsuo Ishikawa, Shinji Tokonami
Radiation Protection Dosimetry 200 ( 16-18 ) 1671 - 1675 2024.11
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Influence of meteorological parameters on indoor radon concentration levels in the Aksu school
Yerlan Kashkinbayev, Meirat Bakhtin, Polat Kazymbet, Anel Lesbek, Baglan Kazhiyakhmetova, Masaharu Hoshi, Nursulu Altaeva, Yasutaka Omori, Shinji Tokonami, Hitoshi Sato, Danara Ibrayeva
Atmosphere 15 ( 9 ) 1067 - 1067 2024.9
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Radon in Soil Gas and Ambient Dose Equivalent Rate Measurements in Yaoundé, Cameroon
Gourda Hebsia Eric, Bobbo Modibo Oumar, Ndimantchi Ayoba, Emmanuel Ndjana Nkoulou II Joseph, Djatnika Nugraha Eka, Kranrod Chutima, Omori Yasutaka, Hosoda Masahiro, Saïdou, Tokonami Shinji
Radiation Environment and Medicine 13 ( 2 ) 52 - 59 2024.8
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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 127 ( 5 ) 588 - 599 2024.6
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Simultaneous measurements of radon, thoron and thoron progeny and induced cancer risk assessment in Djeno, Pointe-Noire, Republic of Congo
Jucit Sem Sondzo, Guy Blanchard Dallou, Philippe Ondo Meye, Russel Rolphe Caroll Moubakou Diahou, Clobite Bouka Biona, Chutima Kranrod, Yasutaka Omori, Masahiro Hosoda, Saïdou, Shinji Tokonami
Radiation Protection Dosimetry 200 ( 5 ) 437 - 447 2024.1
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Uranium Isotope Characterization in Volcanic Deposits in a High Natural Background Radiation Area, Mamuju, Indonesia
Ilsa Rosianna, Eka Djatnika Nugraha, Hirofumi Tazoe, Heri Syaeful, Adi Gunawan Muhammad, I Gde Sukadana, Frederikus Dian Indrastomo, Ngadenin, Fadiah Pratiwi, Agus Sumaryanto, Sucipta Sucipta, Hendra A. Pratama, Deni Mustika, Leli Nirwani, Nurokhim, Yasutaka Omori, Masahiro Hosoda, Naofumi Akata, Shinji Tokonami
Geosciences 13 388 2023.12
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Assessment of radiological risks due to indoor radon, thoron and progeny, and soil gas radon in thorium-bearing areas of the centre and south regions of Cameroon
Atangana Bingana Martin Serge, Takoukam Soh Serge Didier, Bineng Guillaume Samuel, Chutima Kranrod, Yasutaka Omori, Masahiro Hosoda, Saïdou, Shinji Tokonami
Atmosphere 14 ( 12 ) 1708 - 1708 2023.11
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Improvement of spectral analysis using a NaI(Tl) scintillation spectrometer to evaluate ambient gamma dose rates from primordial radionuclides
Yasutaka Omori, Atsuyuki Sorimachi, Masahiro Hosoda, Sarata Kumar Sahoo, Norbert Kavasi, Osamu Kurihara, Shinji Tokonami, Tetsuo Ishikawa
Radiation Protection Dosimetry 199 ( 18 ) 2233 - 2237 2023.11
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Calibration experiments for radon in drinking water measurements using portable-type electrostatic-collection radon monitors
Masahiro Hosoda, Yasutaka Omori, Hiroki Hashimoto, Maho Matsumoto, Yumi Yasuoka, Tetsuya Sanada, Yuki Oda, Mizuki Kiso, Aoi Sampei, Chutima Kranrod, Hirofumi Tazoe, Naofumi Akata, Yasuyuki Taira, Yuki Tamakuma, Ryohei Yamada, Hiromi Kudo, Mayumi Shimizu, Shinji Tokonami
Radiation Protection Dosimetry 199 ( 18 ) 2203 - 2206 2023.11
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Development and a feasibility study using Gafchromic XRQA2 film as a novel passive radon measurement technique
Worawat Poltabtim, Chutima Kranrod, Yasutaka Omori, Saowarak Musikawan, Masahiro Hosoda, Shinji Tokonami
Radiation Measurements 168 107012 - 107012 2023.9
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Doses from inhalation of radon and thoron for residents in tectonically active region in central Indian Himalaya
G. Prasad, S. Kimothi, S. Chandra, Y. Omori, S. K. Sahoo, T. Ishikawa, S. Tokonami, R. C. Ramola
Journal of Radioanalytical and Nuclear Chemistry 333 ( 6 ) 2999 - 3005 2023.9
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Car-borne survey and dose assessment from external radiation exposure in Bangka Island
Radhia Pradana, Eka Djatnika Nugraha, Wahyudi Wahyudi, Untara Untara, Muji Wiyono, Ade Devriany, Sharah Nataz Shilfa, Michiya Sasaki, Heru Prasetio, Ilma Dwi Winarni, Egnes Ekaranti, Nunung Nuraeni, Chutima Kranrod, Dadong Iskandar, Gatot Suhariyono, Harry Nugroho Eko Surniyantoro, Makhsun Makhsun, Susilo Widodo, Yasutaka Omori, Eri Hiswara, Masahiro Hosoda, Shinji Yoshinaga, Shinji Tokonami
Environmental Science and Pollution Research 30 ( 38 ) 89280 - 89292 2023.7
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Residential radon exposure in Astana and Aqsu, Kazakhstan
Shinji Tokonami, Chutima Kranrod, Polat Kazymbet, Yasutaka Omori, Meirat Bakhtin, Worawat Poltabtim, Saowarak Musikawan, Radhia Pradana, Yerlan Kashkinbayev, Kassym Zhumadilov, Ainur Pirmanova, Moldir Aumalikova, Zhantore Isa, Aya Sakaguchi, Hitoshi Sato, Masaharu Hoshi
Journal of Radiological Protection 43 ( 2 ) 023501 - 023501 2023.6
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Estimation of Ambient Dose Equivalent Rate Distribution Map Using Walking Survey Technique in Hirosaki City, Aomori, Japan
Worawat Poltabtim, Saowarak Musikawan, Arkarapol Thumwong, Yasutaka Omori, Chutima Kranrod, Masahiro Hosoda, Kiadtisak Saenboonruang, Shinji Tokonami
International Journal of Environmental Research and Public Health 20 ( 3 ) 2657 - 2657 2023.2
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Activity ratio of uranium in Fukushima soil samples using multi-collector inductively coupled plasma mass spectrometry
Rajamanickam Murugan, Sarata Kumar Sahoo, Atsuyuki Sorimachi, Yasutaka Omori, Tatsuo Aono
Radiation Protection Dosimetry 198 ( 13-15 ) 934 - 937 2022.9
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Influence of sampling flow rate on thoron exhalation rate measurements by the circulation method
Masahiro Hosoda, Ryohei Yamada, Hiromu Kobyashi, Yuki Tamakuma, Eka Djatnika Nugraha, Hiroki Hashimoto, Ryoju Negami, Chutima Kranrod, Yasutaka Omori, Hirofumi Tazoe, Naofumi Akata, Shinji Tokonami
Radiation Protection Dosimetry 198 ( 13-15 ) 904 - 908 2022.9
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Thoron Equilibrium Factor Observed around Chhatrapur Placer Deposit, a High Background Radiation Area in Odisha, India
Omori Yasutaka, Prasad Ganesh, Vidya Sagar Devulapalli, Kumar Sahoo Sarata, Sorimachi Atsuyuki, Janik Miroslaw, Ishikawa Tetsuo, Ch Rakesh, Ramola, Tokonami Shinji
Radiation Environment and Medicine 11 ( 2 ) 50 - 55 2022.8
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Walking survey technique for ambient gamma dose rate measurement established in Fukushima Medical University
Yasutaka Omori, Ryo Sasaki, Yuto Otsuki, Atsuyuki Sorimachi, Tetsuo Ishikawa
Journal of Nuclear Science and Technology 59 ( 8 ) 1061 - 1070 2022.8
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High Indoor Radon Concentration Observed in Yomitan-son,Okinawa Prefecture, Southwestern Part of Japan
Furukawa Masahide, Omori Yasutaka, Masuda Nagi, Tamakuma Yuki, Suzuki Takahito, Obata Mika, Shingaki Reina, Nakasone Syunya, Ishimine Akinobu, Nakamura Kaori, Shiroma Yoshitaka, Hosoda Masahiro, Akata Naofumi, Tokonami Shinji
Radiation Environment and Medicine 11 ( 1 ) 16 - 20 2022.2
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Car-borne survey for a black shale area and influence of snowfall on absorbed dose rate in air of a coastal area
Tamakuma Yuki, Hosoda Masahiro, Omori Yasutaka, Nagahama Hiroyuki, Ishikawa Tetsuo, Shimo Michikuni, Tokonami Shinji
Radiation Environment and Medicine 10 ( 2 ) 96 - 101 2021.8
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Comparison experiments for radon and thoron measuring instruments at low-level concentrations in one room of a Japanese concrete building.
Atsuyuki Sorimachi, Yuichi Nagamatsu, Yasutaka Omori, Tetsuo Ishikawa
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 173 109696 - 109696 2021.7
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Sorption-desorption coefficients of uranium in contaminated soils collected around Fukushima Daiichi Nuclear Power Station
S. Kasar, S. Mishra, S. K. Sahoo, N. Kavasi, Y. Omori, H. Arae, A. Sorimachi, T. Aono
Journal of Environmental Radioactivity 233 106617 - 106617 2021.7
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Measurement of uranium isotope ratios in Fukushima-accident contaminated soil samples using multi collector inductively coupled plasma mass spectrometry
R. Murugan, N. Kavasi, S. K. Sahoo, Y. Omori, A. Sorimachi, H. Takahashi, T. Aono
Journal of Environmental Radioactivity 232 106568 - 106568 2021.6
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Radon degassing triggered by tidal loading before an earthquake
Omori Yasutaka, Nagahama Hiroyuki, Yasuoka Yumi, Muto Jun
Scientific Reports 11 ( 1 ) 4092 - 4092 2021.2
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Japanese population dose from natural radiation
Omori Yasutaka, Hosoda Masahiro, Takahashi Fumiaki, Sanada Tetsuya, Hirao Shigekazu, Ono Koji, Furukawa Masahide
Journal of Radiological Protection 40 ( 3 ) R99 - R140 2020.8
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Impact of wind speed on response of diffusion-type radon-thoron detectors to thoron
Omori Yasutaka, Tamakuma Yuki, Nugraha Eka Djatnika, Suzuki Takahito, Saputra Miki Arian, Hosoda Masahiro, Tokonami Shinji
International Journal of Environmental Research and Public Health 17 ( 9 ) 3178 - 3178 2020.5
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Variable strength in thoron interference for a diffusion-type radon monitor depending on ventilation of the outer air
Omori Yasutaka, Shimo Michikuni, Janik Misroslaw, Ishikawa Tetsuo, Yonehara Hidenori
International Journal of Environmental Research and Public Health 17 ( 3 ) 974 - 974 2020.2
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Sorption and desorption studies of Cs and Sr in contaminated soil samples around Fukushima Daiichi Nuclear Power Plant
Kasar Sharayu, Mishra Suchismita, Omori Yasutaka, Sahoo Sarata Kumar, Kavasi Norbert, Arae Hideki, Sorimachi Atsuyuki, Aono Tatsuo
Journal of Soils and Sediments 20 ( 1 ) 392 - 403 2020.1
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Gamma dose rate distribution in the Unegt subbasin, a uranium deposit area in Dornogobi Province, southeastern Mongolia
Omori Yasutaka, Sorimachi Atsuyuki, Gun-Aajav Manlaijav, Enkhgerel Nyamdavaa, Munkherdene Ganbat, Oyunbolor Galnemekh, Shajbalidir Amarbileg, Palam Enkhtuya, Yamada Chieri
Environmental Science and Pollution Research 26 ( 32 ) 33494 - 33506 2019.11
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Characteristics of indoor radon and thoron concentrations in cave dwellings in Gansu Province, China
Sorimachi Atsuyuki, Tokonami Shinji, Omori Yasutaka, Janik Miroslaw, Iwaoka Kazuki, Ishikawa Tetsuo, Sun Quan-Fu
Radiation Protection Dosimetry 184 ( 3-4 ) 457 - 462 2019.10
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Reduction in ambient gamma dose rate from radiocesium due to snow cover
Omori Yasutaka, Inoue Seita, Otsuka Tetsuya, Nagamatsu Yuichi, Sorimachi Atsuyuki, Ishikawa Tetsuo
Radiation Protection Dosimetry 184 ( 3-4 ) 510 - 513 2019.10
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Distributions of indoor gamma dose rates in relation to gamma-ray emissions from building materials: case study of high-rise concrete building in Fukushima
Omori Yasutaka, Ishikawa Takuma, Sorimachi Atsuyuki, Ishikawa Tetsuo
Radiation Protection Dosimetry 184 ( 1 ) 116 - 126 2019.7
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Elevation of gamma dose rate by construction of the Asian Highway 3 (AH3) between Ulaanbaatar and Sainshand, Mongolia
Omori Yasutaka, Sorimachi Atsuyuki, Gun-Aajav Manlaijav, Enkhgerel Nyamdavaa, Oyunbolor Galnemekh, Palam Enkhtuya, Yamada Chieri
Radiation Protection Dosimetry 184 ( 1 ) 127 - 134 2019.7
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Measurement of gamma radiation at junior high school sites in Fukushima City
Omori Yasutaka, Sorimachi Atsuyuki, Ishikawa Tetsuo
Radiation Environment and Medicine 7 ( 1 ) 21 - 27 2018.2
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Accurate measurement of indoor radon concentration using a low-volume radon monitor
Tanaka Aya, Minami Nodoka, Yasuoka Yumi, Iimoto Takeshi, Omori Yasutaka, Nagahama Hiroyuki, Muto Jun, Mukai Takahiro
Radiation Protection Dosimetry 177 ( 3 ) 324 - 330 2017.12
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Indoor radon, thoron and their progeny concentrations in high thoron rural Serbia environments
Zunic Z.S, Stojanovska Z, Veselinovic N, Mishra R, Yarmoshenko I.V, Sapra B.K, Ishikawa T, Omori Y, Curguz Z, Bossew P, Udovicic V, Ramola R.C
Radiation Protection Dosimetry 177 ( 1-2 ) 36 - 39 2017.11
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Anomalous changes in atmospheric radon concentration before and after the 2011 northern Wakayama Earthquake (Mj 5.5)
Goto M, Yasuoka Y, Nagahama H, Muto J, Omori Y, Ihara H, Mukai T
Radiation Protection Dosimetry 174 ( 3 ) 412 - 418 2017.4
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Radiation dose due to radon and thoron progeny inhalation in high-level natural radiation areas of Kerala, India
Omori Y, Tokonami S, Sahoo S.K, Ishikawa T, Sorimachi A, Hosoda M, Kudo H, Pornnumpa C, Nair R.R.K, Jayalekshmi P.A, Sebastian P, Akiba S
Journal of Radiological Protection 37 ( 1 ) 111 - 126 2017.3
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Long-term measurements of residential radon, thoron, and thoron progeny concentrations around the Chhatrapur placer deposit, a high background radiation area in Odisha, India
Omori Y, Prasad G, Sorimachi A, Sahoo S.K, Ishikawa T, Vidya Sagar D, Ramola R.C, Tokonami S
Journal of Environmental Radioactivity 162-163 371 - 378 2016.10
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Natural radioactivity level and elemental composition of soil samples from a high background radiation area on eastern coast of India (Odisha)
Sahoo S.K, Kierepko R, Sorimachi A, Omori Y, Ishikawa T, Tokonami S, Prasad G, Gusain G.S, Ramola R.C
Radiation Protection Dosimetry 171 ( 2 ) 172 - 178 2016.10
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A comparison of dose from natural radionuclides and artificial radionuclides after the Fukushima nuclear accident
Hosoda M, Tokonami S, Omori Y, Ishikawa T, Iwaoka K
Journal of Radiation Research 57 ( 4 ) 422 - 430 2016.7
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Radiation survey on Fukushima Medical University premises about four years after the Fukushima nuclear disaster
Omori Y, Wakamatsu H, Sorimachi A, Ishikawa T
Fukushima Journal of Medical Science 62 ( 1 ) 1 - 17 2016.6
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Radon as an indicator of nocturnal atmospheric stability: a simplified theoretical approach
Omori Y, Nagahama H
Boundary-Layer Meteorology 158 ( 2 ) 351 - 359 2016.2
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Evaluation of Environmental Radiation Level by Car-borne Survey:-The Outline of the Investigation of Aomori Prefecture-
HOSODA Masahiro, INOUE Kazumasa, OKA Mitsuaki, OMORI Yasutaka, IWAOKA Kazuki, TOKONAMI Shinji
Japanese Journal of Health Physics 51 ( 1 ) 27 - 40 2016
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Environmental Radiation Monitoring and External Dose Estimation in Aomori Prefecture after the Fukushima Daiichi Nuclear Power Plant Accident
HOSODA Masahiro, INOUE Kazumasa, OKA Mitsuaki, OMORI Yasutaka, IWAOKA Kazuki, TOKONAMI Shinji
Japanese Journal of Health Physics 51 ( 1 ) 41 - 50 2016
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Comparative dosimetry for radon and thoron in high background radiation areas in China
Kudo H, Tokonami S, Omori Y, Ishikawa T, Iwaoka K, Sahoo S.K, Akata N, Hosoda M, Wanabongse P, Pornnumpa C, Sun Q, Li X, Akiba S
Radiation Protection Dosimetry 167 ( 1-3 ) 155 - 159 2015.11
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Natural radioactivity and radon exhalation rates in man-made tiles used as building materials in Japan
Iwaoka K, Hosoda M, Suwankot N, Omori Y, Ishikawa T, Yonehara H, Tokonami S
Radiation Protection Dosimetry 167 ( 1-3 ) 135 - 138 2015.11
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A pilot study for dose evaluation in high-level natural radiation areas of Yangjiang, China
Omori Y, Tokonami S, Ishikawa T, Sahoo S.K, Akata N, Sorimachi A, Hosoda M, Pornnumpa C, Wanabongse P, Kudo H, Hu Y.-J, Ao Y.-X, Li X.-L, Li K, Fu Y.-H, Sun Q.-F, Akiba S
Journal of Radioanalytical and Nuclear Chemistry 306 317 - 323 2015.10
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Long-term measurements of radon, thoron and their airborne progeny in 25 schools in Republic of Srpska
Ćurguz Z, Stojanovska Z, Žunić Z.S, Kolarž P, Ishikawa T, Omori Y, Mishra R, Sapra B.K, Vaupotič J, Ujič P, Bossew P
Journal of Environmental Radioactivity 148 163 - 169 2015.10
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Estimating Annual Individual Doses for Evacuees Returning Home to Areas Affected by the Fukushima Nuclear Accident
Yajima K, Kurihara O, Ohmachi Y, Takada M, Omori Y, Akahane K, Kim E, Torikoshi M, Yonehara H, Yoshida S, Sakai K, Akashi M
Health Physics 109 ( 2 ) 122 - 133 2015.8
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Estimation of External Dose by Car-borne Survey in Kerala, India
Hosoda M, Tokonami S, Omori Y, Sahoo S.K, Akiba S, Sorimachi A, Ishikawa T, Nair R.R, Jayalekshmi P.A, Sebastian P, Iwaoka K, Akata N, Kudo H
PLoS ONE 10 ( 4 ) e0124433 2015.4
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Annual variation in the atmospheric radon concentration in Japan
Kobayashi Y, Yasuoka Y, Omori Y, Nagahama H, Sanada T, Muto J, Suzuki T, Homma Y, Ihara H, Kubota K, Mukai T
Journal of Environmental Radioactivity 146 110 - 118 2015.4
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Measuring radon in high humidity air using anhydrous calcium sulfate and an activated charcoal detector
Mori Y, Omori Y, Yoshimura H, Maeda A, Yamamoto M, Nishinaka T, Ishikawa T, Wakabayashi A, Yasuoka Y
Journal of Hot Spring Sciences 64 ( 4 ) 402 - 408 2015.3
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Influence of humidity on radon and thoron exhalation rates from building materials
Janik M, Omori Y, Yonehara H
Applied Radiation and Isotopes 95 102 - 107 2015.1
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Normal seasonal variations for atmospheric radon concentration: A sinusoidal model
Hayashi K, Yasuoka Y, Nagahama H, Muto J, Ishikawa T, Omori Y, Suzuki T, Homma Y, Mukai T
Journal of Environmental Radioactivity 139 149 - 153 2015.1
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Report on the Traceability on Radon Measurement and Calibration for Radon Detectors at Bundesamt für Strahlenschutz (BfS), Germany
SORIMACHI Atsuyuki, OMORI Yasutaka, TOKONAMI Shinji
Japanese Journal of Health Physics 50 ( 2 ) 103 - 110 2015
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First step of indoor thoron mapping of Kosovo and Metohija
Gulan L, Zunić Z.S, Milić G, Ishikawa T, Omori Y, Vučković B, Nikezić D, Krstić D, Bossew P
Radiation Protection Dosimetry 162 ( 1-2 ) 157 - 162 2014.7
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An evaluation of thoron (and radon) equilibrium factorclose towalls based on long-term measurements in dwellings
Mishra R, Zunic Z.S, Venoso G, Bochicchio F, Stojanovska Z, Carpentieri C, Prajith R, Sapra B.K, Mayya Y.S, Ishikawa T, Omori Y, Veselinovic N, Tollefsen T, Ujić P, Bossew P
Radiation Protection Dosimetry 160 ( 1-3 ) 164 - 168 2014.7
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Invited Article: In situ comparison of passive radon-thoron discriminative monitors at subsurface workplaces in Hungary
Kavasi N, Vigh T, Nemeth C, Ishikawa T, Omori Y, Janik M, Yonehara H
Review of Scientific Instruments 85 ( 2 ) Article number: 022002 2014.2
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Invited Article: Radon and thoron intercomparison experiments for integrated monitors at NIRS, Japan
Janik M, Ishikawa T, Omori Y, Kavasi N
Review of Scientific Instruments 85 ( 2 ) Article number: 022001 2014.2
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Effect of a Desiccant on the Measurement of Radon Concentration in Air
TAJIKA Yukari, YASUOKA Yumi, OMORI Yasutaka, SORIMACHI Atsuyuki, ISHIKAWA Tetsuo, MORI Yasunori, MUKAI Takahiro
Japanese Journal of Health Physics 49 ( 4 ) 190 - 193 2014
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Activity concentrations of environmental samples collected in Fukushima Prefecture immediately after the Fukushima nuclear accident
Masahiro Hosoda, Shinji Tokonami, Hirofumi Tazoe, Atsuyuki Sorimachi, Satoru Monzen, Minoru Osanai, Naofumi Akata, Hideki Kakiuchi, Yasutaka Omori, Tetsuo Ishikawa, Sarata K. Sahoo, Tibor Kovács, Masatoshi Yamada, Akifumi Nakata, Mitsuaki Yoshida, Hironori Yoshino, Yasushi Mariya, Ikuo Kashiwakura
Scientific Reports 3 2283 2013
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Measuring radon and thoron levels in Sri Lanka
Deepal Subasinghe Nalaka, Mahakumara Prasad, Thusitha B. Nimalsiri, Nuwan B. Suriyaarchchi, Takeshi Iimoto, Tetsuo Ishikawa, Yasutaka Omori, C. B. Dissanayake
Advanced Materials Research 718-720 721 - 724 2013
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Distribution of terrestrial gamma radiation dose rate in the eastern coastal area of Odisha, India
G. S. Gusain, B. S. Rautela, S. K. Sahoo, T. Ishikawa, G. Prasad, Y. Omori, A. Sorimachi, S. Tokonami, R. C. Ramola
Radiation Protection Dosimetry 152 ( 1-3 ) 42 - 45 2012.11
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Thoron experimental room at the national institute of radiological sciences (nirs), japan
N. Kavasi, M. Janik, G. Prasad, Y. Omori, T. Ishikawa, H. Yonehara
Radiation Protection Dosimetry 152 ( 1-3 ) 150 - 153 2012.11
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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, A. Csordás, T. Kovács
Radiation Protection Dosimetry 152 ( 1-3 ) 243 - 246 2012.11
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Levels of thoron and progeny in high background radiation area of southeastern coast of Odisha, India
R. C. Ramola, G. S. Gusain, B. S. Rautela, D. V. Sagar, G. Prasad, S. K. Shahoo, T. Ishikawa, Y. Omori, M. Janik, A. Sorimachi, S. Tokonami
Radiation Protection Dosimetry 152 ( 1-3 ) 62 - 65 2012.11
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Field experience on indoor radon, thoron and their progenies with solid-state detectors in a survey of Kosovo and Metohija (Balkan region)
L. Gulan, G. Milic, P. Bossew, Y. Omori, T. Ishikawa, R. Mishra, Y. S. Mayya, Z. Stojanovska, D. Nikezic, B. Vuckovic, Z. S. Zunic
Radiation Protection Dosimetry 152 ( 1-3 ) 189 - 197 2012.11
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Effects of air exchange property of passive-type radon-thoron discriminative detectors on performance of radon and thoron measurements
Y. Omori, M. Janik, A. Sorimachi, T. Ishikawa, S. Tokonami
Radiation Protection Dosimetry 152 ( 1-3 ) 140 - 145 2012.11
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Performance test of passive radon-thoron discriminative detectors on environmental parameters
Atsuyuki Sorimachi, Shinji Tokonami, Yasutaka Omori, Tetsuo Ishikawa
Radiation Measurements 47 ( 6 ) 438 - 442 2012.6
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Anomalous change in atmospheric radon concentration sourced from broad crustal deformation: A case study of the 1995 Kobe earthquake
Yumi Yasuoka, Yusuke Kawada, Yasutaka Omori, Hiroyuki Nagahama, Tetsuo Ishikawa, Shinji Tokonami, Masahiro Hosoda, Tetsuo Hashimoto, Masaki Shinogi
Applied Geochemistry 27 ( 4 ) 825 - 830 2012.4
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Variation of atmospheric radon concentration with bimodal seasonality
Yasutaka Omori, Izumi Tohbo, Hiroyuki Nagahama, Yoichi Ishikawa, Masato Takahashi, Hiroaki Sato, Tsutomu Sekine
Radiation Measurements 44 ( 9-10 ) 1045 - 1050 2009.10
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Preseismic alteration of atmospheric electrical conditions due to anomalous radon emanation
Yasutaka Omori, Hiroyuki Nagahama, Yusuke Kawada, Yumi Yasuoka, Tetsuo Ishikawa, Shinji Tokonami, Masaki Shinogi
Physics and Chemistry of the Earth 34 ( 6-7 ) 435 - 440 2009
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Preseismic changes in atmospheric radon concentration and crustal strain
Yumi Yasuoka, Yusuke Kawada, Hiroyuki Nagahama, Yasutaka Omori, Tetsuo Ishikawa, Shinji Tokonami, Masaki Shinogi
Physics and Chemistry of the Earth 34 ( 6-7 ) 431 - 434 2009
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Radon Anomalies Prior to Earthquakes (II) : Atmospheric Radon Anomaly Observed before the Hyogoken-Nanbu Earthquake
ISHIKAWA Tetsuo, YASUOKA Yumi, NAGAHAMA Hiroyuki, KAWADA Yusuke, OMORI Yasutaka, TOKONAMI Shinji, SHINOGI Masaki
Japanese Journal of Health Physics 43 ( 3 ) 253 - 267 2008.9
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Radon Anomalies Prior to Earthquakes (I) : Review of Previous Studies
ISHIKAWA Tetsuo, YASUOKA Yumi, NAGAHAMA Hiroyuki, KAWADA Yusuke, OMORI Yasutaka, TOKONAMI Shinji, SHINOGI Masaki
Japanese Journal of Health Physics 43 ( 2 ) 103 - 111 2008.6
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Time-scale invariant changes in atmospheric radon concentration and crustal strain prior to a large earthquake
Y. Kawada, H. Nagahama, Y. Omori, Y. Yasuoka, T. Ishikawa, S. Tokonami, M. Shinogi
Nonlinear Processes in Geophysics 14 ( 2 ) 123 - 130 2007
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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 Science 7 ( 5 ) 629 - 635 2007