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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

簡易型液体シンチレーションカウンタを用いたPICO-RAD検出器による空気中ラドン濃度測定

村上香瑛, 大森康孝, 小林由布香, 安岡由美, 森 康則, 福堀順敏, 若林亜希子, 向 高弘

第15回環境放射能研究会Proceedings集   29 - 37   2014.12

「陸域環境における放射性核種」に関する第4回国際会議印象記

大森康孝, 反町篤行

日本保健物理学会 News Letter   71   29 - 30   2014.8

「原発事故被災地域における放射線量マッピングに関する技術開発・運用とデータ解析に関する研究会」印象記

大森康孝, 反町篤行

日本保健物理学会 News Letter   70   15 - 16   2014.6

「放射線と甲状腺がんに関する国際ワークショップ」印象記

大森康孝, 反町篤行

日本保健物理学会 News Letter   70   15   2014.6

「福島第一原子力発電所事故による環境放射能汚染の現状と課題‐今，大気環境から考える放射能汚染‐」印象記

大森康孝, 反町篤行

日本保健物理学会 News Letter   69   10 - 13   2014.3

Indoor radon and thoron survey in Hungary (comparison of track etched detectors)

Somlai J, Ishikawa T, Omori Y, Mishra R, Sapra B.K, Mayya Y.S, Tokonami S, Csordás A, Kovács T

Proceedings of 7th Hungarian Radon Forum and Radon in Environment Satellite Workshop   105 - 113   2013

Intercomparison of thoron measuring devices in the RRI thoron calibration chamber

Fábián F, Csordás A, Shahrokhi A, Omori Y, Somlai J, Kovács T

Proceedings of 7th Hungarian Radon Forum and Radon in Environment Satellite Workshop   61 - 72   2013

Intercomparison of radon thoron passive detectors

Somlai J, Ishikawa T, Omori Y, Mishra R, Sapra B.K, Mayya Y.S, Tokonami S, Csordás A, Kovács T

Proceedings of 6th Hungarian Radon Forum and Radon in Environment Satellite Workshop   171 - 182   2012

Long-term integrating radon/thoron measurements in a dwelling, a case study

Németh C, Ishikawa T, Omori Y, Szeiler G, Kovács T

Proceedings of 6th Hungarian Radon Forum and Radon in Environment Satellite Workshop   227 - 231   2012

An anomalous increase in atmospheric radon prior to the Kobe earthquake

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

Electromagnetics in Seismic and Volcanic Areas   29 - 34   2008

Changes in radon exhalation before the Kobe earthquake

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

Proceedings of the Eighth Workshop on Environmental Radioactivity   138 - 142   2008

南相馬地域高等学校支援事業

2016.12