Papers - AKATA Naofumi
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Measurement and analysis of long-term variation of atmospheric 7Be activity concentrations in Dazaifu (western Japan)
Yukinori Narazaki, Akihiro Sakoda, Naofumi Akata, Hisanori Itoh, Noriyuki Momoshima
Journal of Environmental Radioactivity 284 107612 - 107612 2025.4
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Elevated levels of tritium in surface water collected in the immediate aftermath of the Fukushima accident
Khemruthai Kheamsiri, Donovan Anderson, Hirofumi Tazoe, Kazusa Okada, Nao Otashiro, Haruka Kuwata, Hideki Kakiuchi, Masahiro Hosoda, Tibor Kovács, Shinji Tokonami, Naofumi Akata
Environmental Pollution 126040 - 126040 2025.3
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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 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 2025.3
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A Bioassay Analysis of Uranium and Lead in Urine Samples from a High Natural Background Radiation Area in Indonesia
Very Susanto, Radhia Pradana, Eka Djatnika Nugraha, Prihadi Sumintadireja, Oumar Bobbo Modibo, Ilsa Rosianna, Nastiti Rahajeng, Haeranah Ahmad, Rusbani Kurniawan, Leons Rixson, Atika Yuningsih, Yusraini Dian Inayati Siregar, Asep Saepuloh, Wahyudi Wahyudi, Hirofumi Tazoe, Naofumi Akata, Shinji Tokonami
Environments 12 ( 2 ) 51 - 51 2025.2
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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 2024.11
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Atmospheric concentrations of 7Be and 210Pb in weekly aerosols at Hirosaki, a heavy snowfall area in Japan
Khemruthai Kheamsiri, Oumar Bobbo Modibo, Bagus Sidik Waskito Hadi, Haruka Kuwata, Ryohei Yamada, Chutima Kranrod, Naofumi Akata
Radiation Protection Dosimetry 200 ( 16-18 ) 1782 - 1786 2024.11
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Tritium determination in natural water samples in Fukushima from 2022 to 2023 using an ultra-low-level tritium counting system
Miklós Hegedűs, Haruka Kuwata, Khemruthai Kheamsiri, Maté Novák, Ryohei Yamada, Naofumi Akata, Tibor Kovács
Radiation Protection Dosimetry 200 ( 16-18 ) 1845 - 1849 2024.11
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Tritium concentration in monthly precipitation in Okinawa and Kagoshima, southern Japan
Naofumi Akata, Kaho Ohno, Haruka Kuwata, Khemruthai Kheamsiri, Yukiko Yoshinaka, Ryohei Yamada, Yuisa Kitayama, Sana Aizawa, Shunya Nakasone, Akinobu Ishimine, Masahiro Tanaka, Yoshitaka Shiroma, Shinji Tokonami, Masahide Furukawa
Radiation Protection Dosimetry 200 ( 16-18 ) 1792 - 1796 2024.11
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Study of seasonal variation of accident-derived atmospheric radiocesium in Koriyama City, Fukushima Prefecture, Japan during 2011–2014
Hidenao Hasegawa, Naofumi Akata, Katsuhiko Okuyama, Shinya Ochiai, Hideki Kakiuchi, Shinji Ueda
Radiation Protection Dosimetry 200 ( 16-18 ) 1829 - 1834 2024.11
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Optimization of pretreatment protocol for strontium-90 analysis in marine fish bone samples
Hirofumi Tazoe, Yosuke Amano, Yasuo Ishida, Masatoshi Yamada, Naofumi Akata
Radiation Protection Dosimetry 200 ( 16-18 ) 1861 - 1866 2024.11
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Impacts of the large fusion test facility on tritium in environmental water and natural radiation levels
Masahiro Tanaka, Saori Kurita, Naofumi Akata
Radiation Protection Dosimetry 200 ( 16-18 ) 1802 - 1806 2024.11
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Evaluation of combustion system for organically bound tritium analysis using dried fish samples
Haruka Kuwata, Ryohei Yamada, Khemruthai Kheamsiri, Hideki Kakiuchi, Toshiya Tamari, Nagayoshi Shima, Naofumi Akata
Radiation Protection Dosimetry 200 ( 16-18 ) 1807 - 1812 2024.11
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Development of evaluation method for radiocesium availability in soil by biomimetic approach
Akira Takeda, Yusuke Unno, Mathew J B Swallow, Yasumi Yagasaki, Tetsuo Yasutaka, Naofumi Akata
Radiation Protection Dosimetry 200 ( 16-18 ) 1767 - 1771 2024.11
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Characteristics of tritium, stable isotopes and chemical components in monthly precipitation at Hiroshima, Japan
Ryohei Yamada, Haruka Kuwata, Khemruthai Kheamsiri, Kaho Ohno, Yuisa Kitayama, Yukiko Yoshinaka, Shinji Yoshinaga, Naoyuki Kurita, Naofumi Akata
Radiation Protection Dosimetry 200 ( 16-18 ) 1797 - 1801 2024.11
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Behavior of radioactive cesium concentration for 13 years after FDNPP accident at Koriyama campus of Nihon University, Fukushima, Japan
Ryoko Suzuki, Katsuhiko Okuyama, Kohei Chiba, Taiki Hashimoto, Natsumi Katsumata, Azusa Ukitsu, Khemruthai Kheamsiri, Ryohei Yamada, Naofumi Akata
Radiation Protection Dosimetry 200 ( 16-18 ) 1835 - 1839 2024.11
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Interlaboratory Comparison in Japan for Radon Determination in Water
Shunya NAKASONE, Akinobu ISHIMINE, Yuki TAMAKUMA, Masahiro HOSODA, Naofumi AKATA, Tetsuya SANADA, Masahiro TANAKA, Sumi YOKOYAMA, Minoru SAKAMA, Akira TANAHARA, Masahide FURUKAWA, Shinji TOKONAMI, Yumi YASUOKA, Yoshitaka SHIROMA
Japanese Journal of Health Physics 59 ( 3 ) 131 - 134 2024.10
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Variation analysis of atmospheric 7Be activity concentrations with respect to precipitation
Yukinori Narazaki, Akihiro Sakoda, Naofumi Akata, Hisanori Itoh, Noriyuki Momoshima
Journal of Environmental Radioactivity 277 107432 - 107432 2024.7
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Tissue-free water tritium and non-exchangeable organically bound tritium concentrations in fish near coastline during and after operation of Japan's first nuclear fuel reprocessing facility
Naofumi Akata, Donovan Anderson, Hideki Kakiuchi, Ryohei Yamada, Hidenao Hasegawa, Shinji Ueda
Science of The Total Environment 947 174404 - 174404 2024.7
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Environmental Radioactivity during Active Testing at the Rokkasho Reprocessing Plant—Effects on Environment by Released Radionuclides—
Shinji Ueda, Hidenao Hasegawa, Hideki Kakiuchi, Yoshihito Ohtsuka, Koichi Abe, Naofumi Akata, Shinya Ochiai
RADIOISOTOPES 73 ( 1 ) 81 - 99 2024.3