Papers - AKATA Naofumi
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A new pretreatment technique for environmental tritium analysis with microwave heating method
Naofumi Akata, Masahiro Tanaka, Sadatsugu Takayama, Hideki Kakiuchi, Toshiya Tamari, Saburo Sano
Plasma and Fusion Research 11 ( 1 ) 2016
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The Study of Natural Radiation Exposure in Cameroon
AKATA Naofumi, HOSODA Masahiro, TOKONAMI Shinji
Japanese Journal of Health Physics 51 ( 4 ) 204a - 204a 2016
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TRITIUM ACTIVITY CONCENTRATIONS AND RESIDENCE TIMES OF GROUNDWATER COLLECTED IN ROKKASHO, JAPAN
Hidenao Hasegawa, Shinji Ueda, Naofumi Akata, Hideki Kakiuchi, Shun'ichi Hisamatsu
RADIATION PROTECTION DOSIMETRY 167 ( 1-3 ) 201 - 205 2015.11
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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, S. Tokonami
RADIATION PROTECTION DOSIMETRY 167 ( 1-3 ) 223 - 227 2015.11
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FWT AND OBT CONCENTRATIONS IN PINE NEEDLE SAMPLES COLLECTED AT TOKI, JAPAN (1998-2012)
N. Akata, H. Kakiuchi, T. Tamari, M. Tanaka, T. Kawano, H. Miyake, T. Uda, K. Nishimura
RADIATION PROTECTION DOSIMETRY 167 ( 1-3 ) 210 - 214 2015.11
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COMPARATIVE DOSIMETRY FOR RADON AND THORON IN HIGH BACKGROUND RADIATION AREAS IN CHINA
H. Kudo, S. Tokonami, Y. Omori, T. Ishikawa, K. Iwaoka, S. K. Sahoo, N. Akata, M. Hosoda, P. Wanabongse, C. Pornnumpa, Q. Sun, X. Li, S. Akiba
RADIATION PROTECTION DOSIMETRY 167 ( 1-3 ) 155 - 159 2015.11
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A pilot study for dose evaluation in high-level natural radiation areas of Yangjiang, China
Yasutaka Omori, Shinji Tokonami, Tetsuo Ishikawa, Sarata Kumar Sahoo, Naofumi Akata, Atsuyuki Sorimachi, Masahiro Hosoda, Chanis Pornnumpa, Paitoon Wanabongse, Hiromi Kudo, Ye-Jing Hu, Yong-Xiang Ao, Xiao-Liang Li, Kun Li, Ying-Hua Fu, Quan-Fu Sun, Suminori Akiba
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 306 ( 1 ) 317 - 323 2015.10
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Dual temperature dual pressure water-hydrogen chemical exchange for water detritiation
Takahiko Sugiyama, Akito Takada, Youhei Morita, Kenji Kotoh, Kenzo Munakata, Akira Taguchi, Takao Kawano, Masahiro Tanaka, Naofumi Akata
FUSION ENGINEERING AND DESIGN 98-99 1876 - 1879 2015.10
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Nuclear accident-derived H-3 in river water of Fukushima Prefecture during 2011-2014
Shinji Ueda, Hidenao Hasegawa, Hideki Kakiuchi, Shinya Ochiai, Naofumi Akata, Shun'ichi Hisamatsu
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 146 102 - 109 2015.8
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Effects of radiocesium inventory on Cs-137 concentrations in river waters of Fukushima, Japan, under base-flow conditions
Shinya Ochiai, Shinji Ueda, Hidenao Hasegawa, Hideki Kakiuchi, Naofumi Akata, Yoshihito Ohtsuka, Shun'ichi Hisamatsu
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 144 86 - 95 2015.6
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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 10 ( 4 ) e0124433 2015.4
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Iodine-129 in water samples collected adjacent to a spent nuclear fuel reprocessing plant in Rokkasho, Japan
Shinji Ueda, Hideki Kakiuchi, Hidenao Hasegawa, Naofumi Akata, Hidehisa Kawamura, Shun'ichi Hisamatsu
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 303 ( 2 ) 1211 - 1215 2015.2
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Radiocesium inventory on the campus of Nihon University, Koriyama, Fukushima, Japan
Akata, N, Okuyama, K, Tsujimoto, Y, Takahashi, N, Ishihara, M, Arai, Y, Itakura, T, Sato, T, Ogata, T, Kakiuchi, H
Radiation Emergency Medicine 4 57 - 61 2015.2
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Atmospheric deposition of radionuclides (Be-7, Pb-210, Cs-134, Cs-137 and K-40) during 2000-2012 at Rokkasho, Japan, and impact of the Fukushima Dai-ichi Nuclear Power Plant accident
Naofumi Akata, Hidenao Hasegawa, Hitoshi Kawabata, Hideki Kakiuchi, Yuki Chikuchi, Nagayoshi Shima, Toshitaka Suzuki, Shun'ichi Hisamatsu
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 303 ( 2 ) 1217 - 1222 2015.2
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Investigation of Environmental Radiation at Tono Area in Gifu Prefecture, Japan
HOSODA Masahiro, AKATA Naofumi, SHIMO Michikuni, FURUKAWA Masahide, IWAOKA Kazuki, TOKONAMI Shinji
RADIOISOTOPES 64 ( 7 ) 465 - 474 2015
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Characteristics of hydrogen and oxygen stable isotope ratios in precipitation collected in a snowfall region, Aomori Prefecture, Japan
Hidenao Hasegawa, Naofumi Akata, Hitoshi Kawabata, Tadahiro Sato, Yuki Chikuchi, Shun'ichi Hisamatsu
GEOCHEMICAL JOURNAL 48 ( 1 ) 9 - 18 2014
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2012年の積雪観測講習会における積雪断面観測結果とイオン成分濃度および水素・酸素同位体比
赤田尚史, 原田鉱一郎, 本谷研, 根本征樹, 佐藤研吾, 阿部修
東北の雪と生活 ( 28 ) 42 - 45 2013.10
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DAILY RADIONUCLIDE INGESTION AND INTERNAL RADIATION DOSES IN AOMORI PREFECTURE, JAPAN
Yoshihito Ohtsuka, Hideki Kakiuchi, Naofumi Akata, Yuichi Takaku, Shun'ichi Hisamatsu
HEALTH PHYSICS 105 ( 4 ) 340 - 350 2013.10
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Radiocarbon concentrations in environmental samples collected near the spent nuclear fuel reprocessing plant at Rokkasho, Aomori, Japan, during test operation using spent nuclear fuel
Naofumi Akata, Koichi Abe, Hideki Kakiuchi, Takashi Iyogi, Nagayoshi Shima, Shun'ichi Hisamatsu
Health Physics 105 ( 3 ) 236 - 244 2013.9
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Fluvial discharges of radiocaesium from watersheds contaminated by the Fukushima Dai-ichi Nuclear Power Plant accident, Japan
Shinji Ueda, Hidenao Hasegawa, Hideki Kakiuchi, Naofumi Akata, Yoshihito Ohtsuka, Shun'ichi Hisamatsu
Journal of Environmental Radioactivity 118 96 - 104 2013.4