I. Rosianna, R. Pradana, F.D. Indrastomo, Y. Rachael, Wahyudi, M.M. Farid, A.G. Muhammad, N. Madyaningarum, E.D. Nugraha, H. Tazoe, S. Tokonami, N. Akata: Natural Radioactivity at the Tin Smelter in Bangka Island, Indonesia. 日本保健物理学会第58回研究発表会, 水戸, 2025.12.18-20.（ポスター）（学生優秀ポスター賞 受賞）
桑田遥, K. Kheamsiri, 北山結彩, 池田愛実, 山田椋平, D. Anderson, 天野洋典, 鷹崎和義, 玉利俊哉, 赤田尚史: 極低濃度有機結合型トリチウム分析手法を用いた海産物試料の分析. 日本保健物理学会第58回研究発表会, 水戸, 2025.12.18-20.
北山結彩, 桑田遥, K. Kheamsiri, 福田ほのか, 田中和貴, 山田椋平, 赤田尚史: トリチウムをトレーサーに用いた福島県請戸川の平均滞留時間推定. 日本保健物理学会第58回研究発表会, 水戸, 2025.12.18-20.
北山結彩, 桑田遥, K. Kheamsiri, 福田ほのか，田中和貴，山田椋平, 栗田直幸, 赤田尚史: 福島県浪江町における環境水中のトリチウム濃度と水素酸素安定同位体比. 同位体の回収と分離、計測に関する合同研究報告会／水素同位体の回収・分離・計測と環境挙動に関する研究集会，名古屋，2025.12.15-16.
I. Rosianna, R. Pradana, R.C. Ciputra, F.D. Indrastomo, K.S. Widana, Wahyudi, M.M. Farid, I.D. Winarni, S. Permana, E.D. Nugraha, H. Tazoe, S. Tokonami, N. Akata: Radiological Assessment from External Exposure: A Case Study at Tin Smelter in Bangka, Indonesia. 5th International VIETNAM CONFERENCE ON EARTH AND ENVIRONMENTAL SCIENCES (iVCEES-2025), Quy Nhon, Vietnam, 2025.11.24-28. (poster)
S. Hirao, M. Tanaka, N. Akata: An Investigation of Terrestrial Tritium in Fukushima, Japan and Its Implication for Environmental Assessment. The 8th Japan-Thailand Bilateral Workshop, Bangkok, Thailand, 2025.11.11-13.
H. Kuwata, K. Kheamsiri, Y. Kitayama, R. Yamada, D. Anderson, Y. Amano, K. Takasaki, T. Tamari, N. Akata: Organically Bound Tritium Analysis of Marine Products in Fukushima Using Ultra-Sensitive Technique. The 8th Japan-Thailand Bilateral Workshop, Bangkok, Thailand, 2025.11.11-13.
Y. Kitayama, H. Kuwata, K. Kheamsiri, H. Fukuda, K. Tanaka, R. Yamada, N. Kurita, N. Akata: Study of Water Quality and Tritium Concentration in the Ukedo River Catchment, Fukushima Prefecture, Japan. The 8th Japan-Thailand Bilateral Workshop, Bangkok, Thailand, 2025.11.11-13.
H. Fukuda, N. Akata, S. Hirao, S. Kenjo, Y. Someya, S. Yokoyama: Development of Tritium Concentration Assessment Using the UFOTRI Model. The 8th Japan-Thailand Bilateral Workshop, Bangkok, Thailand, 2025.11.11-13.
K. Kheamsiri, N. Akata, C. Kranrod, H. Tazoe, T. Thumvijit, I. Rosianna, H. Kuwata, K. Khetanun, N. Yimyam, Y. Unno, A. Takeda: Soil Properties Assessment at the AIRID Training Center Coffee Field, Chiang Mai University, Thailand. The 8th Japan-Thailand Bilateral Workshop, Bangkok, Thailand, 2025.11.11-13.
N. Akata, R. Yamada, H. Kuwata: Distribution and Dynamics of Tritium in the Environment. The 8th Japan-Thailand Bilateral Workshop, Bangkok, Thailand, 2025.11.11-13. (Invited)
K. Kheamsiri: Elemental and radionuclide geochemistry in highland coffee plantation soil in Chiang Mai. International Symposium on Advanced Materials and Radiation Technology, Bangkok, Thailand, 2025.11.10.
Y. Kitayama: Assessment of Water Quality and Tritium Levels in the Ukedo River Basin, Fukushima, Japan. International Symposium on Advanced Materials and Radiation Technology, Bangkok, Thailand, 2025.11.10.
北山結彩, 桑田遥, K. Kheamsiri, 福田ほのか，田中和貴，山田椋平, 赤田尚史: 福島県浪江町における月間降水の化学的特徴. 第32回大気環境学会北海道東北支部学術集会，弘前，2025.10.10.（学生優秀発表賞 受賞）
長谷川英尚，大塚良仁，植田真司，赤田尚史，床次眞司：福島県浪江町南津島地区で観測した全137Cs 降下量に対する乾性及び湿性降下量の寄与. 第32回大気環境学会北海道東北支部学術集会，弘前，2025.10.10.
天野洋典，長谷川英尚，柿内秀樹，田中将裕，赤田尚史：青森県六ヶ所村の再処理工場で実施されたせん断・溶解処理試験期間中における大気環境中のトリチウム濃度. 第32回大気環境学会北海道東北支部学術集会，弘前，2025.10.10.
Y. Amano, H. Hasegawa, H. Kakiuchi, M. Tanaka, N. Akata : Variation in atmospheric tritium concentrations in HTO, HT, and CH3T forms in Rokkasho, Japan during the final testing of a spent nuclear fuel reprocessing plant. Tritium 2025, Ottawa, Canada, 2025.9.21-26. (poster)
H. Kuwata, K. Kheamsiri, Y. Kitayama, R. Yamada, D. Anderson, T. Tamari, Y. Amano, N. Akata: Development of an ultra-sensitive technique for organnically bound tritium analysis. Tritium 2025, Ottawa, Canada, 2025.9.21-26.
K. Kheamsiri, N. Akata, C. Kranrod, H. Tazoe, T. Thumwijit, I. Rosianna, H. Kuwata, K. Khetanun, N. Yimyam, Y. Unno, A. Takeda: Soil properties: The case study of the Coffee Field, AIRID Training Center, Chiang Mai University, Thailand. 7th Asian-Pacific Symposium on Radiochemistry (APSORC 25), Matsue, Japan, 2025.9.14-19.
P. Sola, H. Tazoe, N. Akata, C. Kranrod, R. Kritsananuwat: Efficiency evaluation of an automated solid‐phase extraction system for monitoring radiostrontium (90Sr) in soil samples. 7th Asian-Pacific Symposium on Radiochemistry (APSORC 25), Matsue, Japan, 2025.9.14-19.
H. Hasegawa, Y. Ohtsuka, N. Akata, S. Ueda, S. Tokonami: A comparison between wet-only and total deposition of 137Cs observed in Namie Town, Fukushima Prefecture, Japan. 7th Asian-Pacific Symposium on Radiochemistry (APSORC 25), Matsue, Japan, 2025.9.14-19. (poster)
N. Akata, H. Kuwata, K. Kheamsiri, R. Ilsa, Y. Kitayama, H. Fukuda, R. Yamada, W. J. Stephenson, Y. Taira, H. Saito, N. Takizawa: Tritium Concentration in Natural Water Samples Collected at Tomioka Town Located Nearby FDNPP. 7th Asian-Pacific Symposium on Radiochemistry (APSORC 25), Matsue, Japan, 2025.9.14-19. (poster)
I. Rosianna, R. Pradana, R.C. Ciputra, F.D. Indrastomo, K.S. Widana, Wahyudi, M.M. Farid, I.D. Winarni, S. Permana, E.D. Nugraha, H. Tazoe, S. Tokonami, N. Akata: Assessment of Annual Effective Dose from External Gamma Radiation Exposure in Tin Smelter at Bangka, Indonesia. The 12th Educational Symposium on Radiation and Health by young scientists (ESRAH2025), Hirosaki, Japan, 2025.9.13-14. (poster)
H. Fukuda, N. Akata, S. Hirao, S. Kenjo, Y. Someya, S. Yokoyama: Atmospheric Dispersion of Tritium with UFOTRI model. The 12th Educational Symposium on Radiation and Health by young scientists (ESRAH2025), Hirosaki, Japan, 2025.9.13-14. (poster) （優秀プレゼンテーション賞 受賞）
Y. Kitayama, H. Kuwata, K. Kheamsiri, H. Fukuda, K. Tanaka, R. Yamada, N. Akata: Tritium Concentration in the Ukedo River Catchment Area, Namie Town, Fukushima Prefecture, Japan. The 12th Educational Symposium on Radiation and Health by young scientists (ESRAH2025), Hirosaki, Japan, 2025.9.13-14. (poster)
H. Fukuda, N. Akata, S. Hirao, S. kenjo, Y. Someya, S. Yokoyama: Comparison Experiment of Dispersion for Atmospheric Tritium using ROPUCO and UFOTRI models. The 44th International Conference on Simulation Technology, Aomori, Japan, 2025.9.1-3. (poster)
N. Akata, K. Tanaka, T. Miura, S. Tokonami: Support Activities for Namie Town, Fukushima Prefecture, Addressed by Hirosaki University. IAEA Technical Meeting Medical doctor's radiation education and communication - training and research for the world, Chiba (QST), Japan, 2025.8.29-30. (invited)
北山結彩, 桑田遥, K. Kheamsiri, 福田ほのか，田中和貴，山田椋平, 滝沢宜之，斎藤秀樹，遠藤雅宗，天野洋典，鷹崎和義，赤田尚史: 福島県浜通り地域における ALPS処理水海洋放出前後の 月間降水中トリチウム濃度，2025年日本雪氷学会東北支部大会，盛岡，2025.5.17-18.
M. Gusyev, A. Cauquoin, S. Hirao, N. Akata: A review of tritium radioisotope in Fukushima waters, Japan. EGU General Assembly 2025, Viena, Austria, 2025.4.27-5.2.
天野洋典, 長谷川英尚, 柿内秀樹, 赤田尚史: 青森県六ヶ所村における大気環境中のトリチウム濃度の時系列推移. 第 26 回「環境放射能」研究会, つくば, 2025.3.12-14.
桑田遥, K. Kheamsiri, 北山結彩, 山田椋平, 玉利俊哉, 天野洋典, 遠藤雅宗, 鷹崎和義, 赤田尚史: 海藻試料を用いた極低濃度レベル有機結合型トリチウム分析, 第 26 回「環境放射能」研究会, つくば, 2025.3.12-14.
赤田尚史: トリチウム環境動態と生体影響の基礎. 大気環境学会放射性物質動態分科会講演会 , 東京（ハイブリット）, 2025.3.3.（招待講演）
H. Kuwata, N. Akata: Development of organically bound tritium measurement and current status at IREM. KAERI_ERAT Workshop on Environmental Radioactivity Analysis, Seoul, South Korea, 2025.2.18-19.
栗田紗緒里, 田中将裕, 平尾茂一, 中田実希, 岩田智恵, 赤田尚史: 大気中分子状トリチウム観測のためのパッシブサンプラー開発. 第5回日本放射線安全管理学会･日本保健物理学会合同大会, 大阪, 2024.12.16-18. (poster)
I. Rosianna, R. Pradana, W. Wahyudi, E.A. Fajrianshah, R.C. Ciputa, I.G. Sukadana, H. Syaeful, F.D. Indrastomo, F. Pratiwi, T.B. Adimedha, E.D. Nugraha, H. Tazoe, N. Akata, S. Tokonami: Existing exposure from naturally occurring radioactive material in Tin processing, Bangka, Indonesia. 第5回日本放射線安全管理学会･日本保健物理学会合同大会, 大阪, 2024.12.16-18.
K. Kheamsiri, 赤田尚史, C. Kranrod, 田副博文: Radionuclide levels in soil and coffee beans: A comparative study of Thailand and Japan. 第5回日本放射線安全管理学会･日本保健物理学会合同大会, 大阪, 2024.12.16-18.
北山結彩, 桑田遥, K. Kheamsiri, 田中和貴, 山田椋平, 赤田尚史: 福島県浪江町を流れる請戸川のトリチウム濃度および化学的特徴, 第5回日本放射線安全管理学会･日本保健物理学会合同大会, 大阪, 2024.12.16-18.
桑田遥, K. Kheamsiri, 北山結彩, 山田椋平, 秋元友寿, 押見良成, 玉利俊哉, 赤田尚史: 日本の高緯度地域淡水魚を用いたOBT分析手法の評価. 第5回日本放射線安全管理学会･日本保健物理学会合同大会, 大阪, 2024.12.16-18.
K. Kheamsiri, N. Akata, C. Kranrod, H Tazoe, T Thumwijit, I. Rosianna, H. Kuwata, K. Khetanun, N. Yimyam, Y. Unno, A. Takeda: Study of Soil Properties in Relation to Radionuclides in Coffee Samples from Thailand and Japan. The 7th Bilateral Workshop on Radiation Research and Related Issues 2024, Bangkok, 2024-12.11-12.
N. Akata, M. Tanaka, S. Hirao: Tritium in the environment and its analytical method. The 7th Bilateral Workshop on Radiation Research and Related Issues 2024, Bangkok, 2024-12.11-12. (invited)
N. Akata, H. Kuwata, Y. Kitayama, Y. Amano, M. Endo, S. Watanabe, K. Takasaki, K. Ichiyanagi, K. Kheamsiri, R. Yamada, N. Kurita, H. Tazoe: Continuous monitoring of tritium concentrations and stable isotope composition in coastal seawater collected at Iwaki City, Fukushima Prefecture located sourth from Fukushima Dai-ichi Nuclear Power Plant. IX Terrestrial Radioisotopes in Environment International Conference on Environmental Protection, Hungary, 2024.11.19-21. (invited)
N. Akata, H. Fukuda, M. Suzuki, M. Sasatani, H Tauchi, T. Shimura, S. Hirao, M. Tanaka, S. Kurita, M. Nagai, H. Kuwata, Y. Tamakuma, S. Kenjo, K. Ochiai, Y. Someya, S. Yokoyama: Overview of development of assessment models for the environmental and biological effect of tritium. The 8th QST International Symposium Fusion Technologies Innovation towards Net Zero Society, Aomori, 2024.11.14-15.
H. Kuwata, K. Kheamsiri, Y. Kitayama, R. Yamada, Y. Akimoto, Y. Oshimi, T. Tamari, N. Akata: Comparison experiment of combustion technique for OBT analysis using Japanese lake fish samples. International Symposium on The Sources, Effects And Risks Of Ionizing Radiation (SERIR 2024), Bali, Indonesia, 2024.10.14-16.
I. Rosianna, R. Pradana, Wahyudi, E.A. Fajrianshah, R.C. Ciputa, I.G. Sukadana, H. Syaeful, F.D. Indrastomo, F. Pratiwi, T.B. Adimedha, E.D. Nugraha, H. Tazoe, N. Akata, S. Tokonami：Major and trace elements concentrations in Tin processing samples from industry at Bangka, indonesia. International Symposium on The Sources, Effects And Risks Of Ionizing Radiation (SERIR 2024), Bali, Indonesia, 2024.10.14-16.
長谷川英尚，柿内秀樹，植田真司，落合伸也，赤田尚史，床次眞司：福島県浪江町南津島地区で観測した137Csの大気中濃度と降下量の変動．大気環境学会北海道東北支部学術集会，札幌，2024.10.11.
H. Fukuda, N. Akata, H. Kuwata, K. Kheamsiri, Y. Kitayama, H. Tazoe: Tritium concentration innsurface seawater from the equatorial to the subtropical region of Northe Pacific. The 11th Educational Symposium on Radiation and Health by young scientists (ESRAH), Hirosaki, 2024.9.21-22.
I. Rosianna, R. Pradana, Wahyudi, E.A. Fajrianshah, R.C. Ciputa, I.G. Sukadana, H. Syaeful, F.D. Indrastomo, F. Pratiwi, T.B. Adimedha, E.D. Nugraha, H. Tazoe, N. Akata, S. Tokonami: Assessment of the radiation exposure in tin processing sampkles from industry at high background radiation area, Banka, Indonesia. The 11th Educational Symposium on Radiation and Health by young scientists (ESRAH), Hirosaki, 2024.9.21-22.
Y. Kitayama, H. Kuwata, K. Khemruthai, K. Tanaka, R. Yamada, N. Akata: Tritium concentration in Ukedo river through Namie Town, Fukushima Prefecture, Japan. The 11th Educational Symposium on Radiation and Health by young scientists (ESRAH), Hirosaki, 2024.9.21-22.
H. Kuwata, K. Kheamsiri, Y. Kitayama, R. Yamada, Y. Akimoto, Y. Oshimi, T. Tamari, N. Akata: Evaluation of OBT concentrations in lake fish using a semi-automatic combustion system. The 11th Educational Symposium on Radiation and Health by young scientists (ESRAH), Hirosaki, 2024.9.21-22.
K. Kheamsiri, N. Akata, C. Kranrod, H. Tazoe, T Thumvijit, K. Khetanum, N. Yimyam: Fertilizer impact on soil properties in the coffee field, AIRID training center, Chang Mai University, Thailand. The 11th Educational Symposium on Radiation and Health by young scientists (ESRAH), Hirosaki, 2024.9.21-22.
上原日和，田中将裕，チョウ･メイチュウ，リ･エンハオ，赤田尚史，安原亮：中赤外レーザー分光によるトリチウム水連続モニタリング手法の開発．第8回福島第一廃炉国際フォーラム，いわき，2024.8.26.
M. Taoka, M. Kiso, Y. Abe, R. Yamada, C. Kranrod, Y. Omori, M. Hosoda, S. Tokonami: Discrimination of artificial radionuclides through alpha energy spectrum analysis using radioactive aerosol monitors. 16th International Congress of the International Radiation Protection Association (IRPA16), Orlando, USA, 2024.7.7-14.
赤田尚史：環境中トリチウムとその挙動. 第61回アイソトープ･放射線研究発表会, 東京, 2024.7.3 （招待講演）
赤田尚史：トリチウム計測技術と日本におけるバックグラウンド濃度計測. 核融合技術の社会受容にむけたトリチウムの環境動態･生体影響評価研究，土岐市，2024.6.20 （招待講演）
八島浩，五十嵐康人，末木啓介，赤田尚史，杉原真司，齋藤敬，栗原雄一，横山須美，福田直子：放射性核種の土壌深度分布とインベントリ―を用いた土壌試料の改変評価，JPGU meeting 2024，千葉，2024.5.26-31.
M. Gusyev, A. Cauquoin, Y. Igarashi, H. Takata, S. Hirao, N. Akata：Anthropogenic and natural tritium radioisotope in terrestrial water cycle of Fukushima, Japan. EGU general assembly 2024, Vienna, Austria, 2024.4.12-19.
H. Kikuchi, Y. Oda, H. Hashimoto, C. Kranrod, R. Yamada, Y. Omori, M. Hosoda, S. Tokonami: Calibration experiments of passive-type radon progeny monitors. International Workshop on Radon Studies in Asia and Oceania, Shanghai, China, 2024.3.25-26.
楊国勝，金ウンジュ，鄭 建，古渡意彦，栗原治，田副博文，赤田尚史：緊急被ばく医療におけるバイオアッセイ研究と今後の展望．第25回環境放射能研究会，つくば，2024.3.11-13.
H. Kuwata, K. Kheamsiri, R. Yamada, H. Kakiuchi, T. Tamari, N. Shima, N. Akata : Investigation for adaptation of tritium analysis in fish samples using a new combustion system. The 6th Bilateral Workshop on Radiation Research and its related issues 2023, Bangkok, Thailand, 2023.12.6-7.
H. Tazoe, Y. Oda, M. Kiso, A. Sampei, H. Hashimoto, Y. Taira, Y. Omori, C. Kranrod, M. Shimizu, H. kudo, N. Akata, R. Yamada, M. Yamaguchi, M. Hosoda, S. Tokonami : Water quality analysis for comprehensive evaluation of combined exposure from heavy metals and radinuclides. The 6th Bilateral Workshop on Radiation Research and its related issues 2023, Bangkok, Thailand, 2023.12.6-7.
K. Kheamsiri, R. Yamada, H. Kuwata, C. Kranrod, T Thumvijit, H. Tazoe, N. Akata : Research activity of the Department of Radiochemistry and Radioecology, and study on internal exposure dose assessment by beverages. The 6th Bilateral Workshop on Radiation Research and its related issues 2023, Bangkok, Thailand, 2023.12.6-7.
K. Kheamsiri, 山田椋平, C. Kranrod, T. Thumvijit, N. Yimyam, K. Khetanun, 田副博文, 赤田尚史：Literature survey on the ingestion dose from radionuclides in beverages for the better upcoming assessment. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
山中潤二，玉利俊哉，島長義，桑田遥，柿内秀樹，今井祥子，赤田尚史: トリチウム分析前処理における試料水精製工程の効率化に関する検討. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
桑田遥, 山田椋平, K. Kheamsiri, 田副博文, 天野洋平, 遠藤雅宗, 一柳錦平, 赤田尚史：福島県沿岸域における表層海水中トリチウム濃度及び同位体組成の推移. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
木曽水稀, 田岡愛弥, 三瓶葵, 橋本啓来, 阿部裕稀, 山田椋平, Chutima Kranrod, 大森康孝, 細田正洋, 床次眞司: 大気中のα線放出核種捕集用フィルタにおける粒径及び捕集流量の依存性評価. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
三瓶葵, 織田侑樹, 菊池隼人, 木曽水稀, 工藤琉衣, 山口平, 平良文亨, 山田椋平, 大森康孝, 田副博文, Chutima Kranrod, 清水真由美, 工藤ひろみ, 玉熊佑紀, 赤田尚史, 細田正洋, 床次眞司: 福島県浜通り地域における天然および人工放射性核種からの吸入被ばく線量評価. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
織田侑樹, 木曽水稀, 三瓶葵, 橋本啓来, 平良文亨, 大森康孝, 田副博文, Chutima Kranrod, 清水真由美, 工藤ひろみ, 赤田尚史, 山田椋平, 山口平, 細田正洋, 床次眞司: 福島県浜通り地域における外部被ばくによる線量評価. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
田岡愛弥, 工藤琉衣, 山田椋平, 大森康孝, 田中和貴, 細田正洋, 床次眞司: 放射性セシウムが沈着した環境における体育館の線量低減係数. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
菊池隼人, 織田侑樹, 橋本啓来, Chutima Kranrod, 真田哲也, 山田椋平, 大森康孝, 細田正洋, 床次眞司: パッシブ型ラドン・トロン子孫核種モニタの較正. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
橋本啓来, 三瓶葵, 玉熊佑紀, 山田椋平, 福原隆宏, Chutima Kranrod, 大森康孝, 細田正洋, 床次眞司: 小型アクティブ式静電捕集型ラドンモニタの開発. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
玉熊佑紀, 橋本啓来, 山田椋平, 岩岡和輝, 大森康孝, 細田正洋, 床次眞司: モンテカルロ計算を用いた連続捕集型ダストモニタの測定ジオメトリの最適化 ―フィルタ内の放射能深さ分布及び人工放射性核種の検出下限濃度の検討―. 日本保健物理学会第56回研究発表会, 東京, 2023.11.9-10.
K. Kheamsiri, M.O. Bobbo, B.S. Waskito Hadi, H. Kuwata, R. Yamada, C. Kranrod, N. Akata: Observation of atmospheric 7Be and 210Pb in aerosols in the heavy snowfall city of Hirosaki, Northern Japan. The 10th Eductional Symposium on Radiation and Health by Young Scientists, Hirosaki, 2023.9.23-24.
H. Kuwata, K. Kheamsiri, R. Yamada, H. Kakiuchi, T. Tamari, N. Shima, N. Akata: Analysis of fish samples using a semi-automatically combustion system for the determination of organically bound tritium concentrations. The 10th Eductional Symposium on Radiation and Health by Young Scientists, Hirosaki, 2023.9.23-24.
Y. Oda, M. Kiso, A. Sampei, H. Hashimoto, Y. Taira, Y. Omori, H. Tazoe, C. Kranrod, M. Shimizu, H. Kudo, N. Akata, R. Yamada, M. Yamaguchi, M. Hosoda, S. Tokonami: Dose Assessment from Absorbed Dose Rate in Air at Hamadori District in Fukushima Prefecture. The 10th Eductional Symposium on Radiation and Health by Young Scientists, Hirosaki, 2023.9.23-24.
A. Sampei, Y. Oda, H. Kikuchi, R. Kudo, M. Kiso, M. Yamaguchi, Y. Taira, R. Yamada, Y. Omori, H. Tazoe, C. Kranrod, M. Shimizu, H. Kudo, N. Akata, M. Hosoda, S. Tokonami: Atmospheric Radiocesium and Radon Concentration at the Coastal Area in Fukushima Prefecture. The 10th Eductional Symposium on Radiation and Health by Young Scientists, Hirosaki, 2023.9.23-24.
H. Kikuchi, Y. Oda, H. Hashimoto, C. Kranrod, T. Sanada, R. Yamada, Y. Omori, M. Hosoda, S. Tokonami: Calibration of passive CR-39-based direct 222Rn/220Rn progeny detector. The 10th Eductional Symposium on Radiation and Health by Young Scientists, Hirosaki, 2023.9.23-24.
M. Taoka, Y. Abe, M. Kiso, A. Sampei, H. Hashimoto, R. Yamada, C. Kranrod, Y. Omori, M. Hosoda, S. Tokonami: Establishment of a method for detecting artificial radionuclides with dust monitors using silicon semiconductor detector. The 10th Eductional Symposium on Radiation and Health by Young Scientists, Hirosaki, 2023.9.23-24.
M. Kiso, R. Yamada, Y. Omori, M. Hosoda, C. Kradrod, S. Tokonami: Surface collection efficiency and dust loading of sampling filter for the collection of alpha-emitting radionuclides in air: A review. The 10th Eductional Symposium on Radiation and Health by Young Scientists, Hirosaki, 2023.9.23-24.
K. Kheamsiri, M.O. Bobbo, B.S. Waskito Hadi, H. Kuwata, R. Yamada, C. Kranrod, N. Akata: Atmospheric concentrations of 7Be and 210Pb in weekly aerosols at Hirosaki, a heavy snowfall area in Japan. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
C. Kranrod, H. Kikuchi, Y. Oda, M. Kiso, A. Sampei, Y. Taira, M. Shimizu, H. Kudo, Y. Omori, H. Tazoe, N. Akata, M. Hosoda, S. Tokonami: Development of calibration technique for passive radon progeny monitor. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
M. Kiso, A. Sampei, H. Hashimoto, M. Taoka, Y. Abe, Y. Omori, R. Yamada, M. Hosoda, C. Kranrod, S. Tokonami: Effect of collection flow rate and particle size on surface collection efficiency: comparison between cellulose glass fiber filter and membrane filter. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
H. Kuwata, R. Yamada, K. Kheamsiri, H. Kakiuchi, T. Tamari, N. Shima, N. Akata: Evaluation of combustion system for organically bound tritium analysis using dried fish samples. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
H. Tazoe, Y. Amano, Y. Ishida, M. Yamada, N. Akata: Optimization of pretreatment protocol for Sr-90 analysis in marine fish samples. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
H. Hashimoto, R. Yamada, K. Sasaki, K. Yamaguchi, Y. Omori, M. Hosoda, S. Tokonami: Mitigation for malfunction of artificial radioactivity measurements using combining multiple methods in environmental monitoring around nuclear fuel recycling facilities. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
T. Sanada, N. Akata, M. Hosoda, S. Tokonami, M. Furukawa: 222Rn and 3H concentration in groundwater at Futamata spa in Hokkaido, Japan. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
A. Takeda, Y. Unno, M. Swallow, Y. Yagasaki, T. Yasutaka, N. Akata: Development of evaluation method for radiocesium availability in soil by biomimetic approach. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
M. Nakada, M. Tanaka, N. Akata, C. Iwata, S. Kurita, M. Minami: 7Be and 210Pb characteristics in the atmospheric environment at Toki, Japan by weekly sampling. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
R. Yamada, H. Kuwata, K. Kheamsiri, K. Ohno, Y. Yoshinaka, S. Yoshinaga, N. Kurita, N. Akata: Characteristics of tritium, stable isotopes and chemical composition in monthly precipitation at Hiroshima, Japan. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
N. Akata, K. Ohno, H. Kuwata, K. Kheamsiri, Y. Yoshinaka, R. Yamada, S. Nakasone, A. Ishimine, M. Tanaka, Y. Shiroma, S. Tokonami, M. Furukawa: Tritium concentration in monthly precipitation at Okinawa and Kagoshima, southern area of Japan. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
M. Tanaka, N. Akata: Impacts of the large fusion test facility on tritium in environmental water and natural radiation levels. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
S. Hirao, N. Akata, M. Gusyev, M. Tanaka, H. Kakiuchi: Evaluating variability of tritium concentration in precipitation near a release point to the atmosphere. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
Y. Tamakuma, C. Kranrod, Y. Taira, Y. Oda, H. Kikuchi, M. Taoka, P. Radhia, S. Musikawan, W. Poltabtim, R. Kudo, Y. Abe, M. Kiso, A. Sampei, H. Tazoe, N. Akata, T. Sanada, M. Furukawa, Y. Shiroma, K. Ogura, R. Yamada, H. Kudo, M. Shimizu, M. Hosoda, S. Tokonami: Inhalation dose assessment for thoron progeny and relationship between thoron exhalation rate from walls and indoor equilibrium equivalent thoron concentration. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
K. Okuyama, R. Suzuki, K. Chiba, H. Kosone, A. Suzuki, T. Hashimoto, R. Ueno, H. Kuwashima, N. Katsumata, F. Amano, K. Watanabe, K. Sakai, A. Ukitsu, E. Abe, T. Anzai, T. Hanma, H. Ohta, K. Katoh, A. Katoh, H. Satoh, M. Tamura, M. Watanabe, K. Watanabe, Y. Tsujimoto, N. Takahashi, Y. Arai, N. Akata: Behavior in radiocesium concentration for 12 years after FDNPP accident at the campus of Nihon University, Koriyama, Fukushima, Japan. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
H. Hasegawa, N. Akata, K. Okuyama, S. Ochiai, H. Kakiuchi, S. Ueda: Seasonal variations of accident derived atmospheric radiocesium in Koriyama City, Fukushima, during 2011-2014. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
M. Shimizu, M. Hosoda, Y. Taira, Y. Oda, C. Kranrod, Y. Omori, H. Tazoe, N. Akata, R. Yamada, M. Kiso, A. Sampei, H. Hashimoto, H. Kuwata, K. Ogura, K. Kikuchi, H. Kudo, M. Osanai, M. Yamaguchi, T. Tsujiguchi, T. Sanada, T. Miura, S. Tokonami: Perceptions of natural radiation in the coastal area of the Fukushima Prefecture. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
M. Hegedűs, H. Kuwata, K. Kheamsiri, M. Novák, R. Yamada, N. Akata, T. Kovács: Tritium determination in natural water samples using an ultra low-level tritium counting system. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
M. Gusyev, S. Hirao, N. Akata: Understanding variability of environmental tritium radioisotope to investigate hydrological processes in Japan. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
Y. Oda, M. Kiso, A. Sampei, H. Hashimoto, Y. Taira, Y. Omori, H. Tazoe, C. Kranrod, M. Shimizu, H. Kudo, N. Akata, R. Yamada, H. Kuwata, Y. Yoshinaka, Y. Abe, H. Kikuchi, R. Kudo, M. Taoka, M. Hosoda, S. Tokonami: Dose assessment of 222Rn, 137Cs, and 3H in drinking water at coastal area in Fukushima Prefecture. International Symposium on Natural and Artificial Radiation Exposures and Radiological Protection Studies (NARE 2023), Hirosaki, 2023.9.19-22.
赤田尚史: トリチウム環境動態と生態影響の基礎. 第11回日本放射線事故･災害医学会, 弘前市, 2023.9.16. （招待）
桑田遥, K. Kheamsiri, 玉利俊哉, 島長義, 柿内秀樹, 田中将裕, 赤田尚史: 極低濃度有機結合型トリチウム計測手法確立のための簡易かつ安全な燃焼法の検討, トリチウム研究会2023, 多治見, 2023.7.7.
F. Bin, G. Steinhauser, M. Gusyev, S. Hirao, W. Zhou, N. Akata: Environmental tritium radioisotope in Japan and China sites to understand hydrological processes. International Symposium on Isotope Hydrology, Vienna, 2023.7.3-7.
K. Ichiyanagi, I.T. Rahmawan, H. Hamatake, K. Ide, N. Akata: Estimating groundwater age using environmental tritium around lake Ezu, Kumamoto City, Japan. International Symposium on Isotope Hydrology, Vienna, 2023.7.3-7.
H. Kuwata, K. Kheamsiri, T. Tamari, N. Shima, N. Akata: Improvement and evaluation of the combustion method for organically bound tritium analysis. 9th Organically Bound Tritium Workshop, Antwerp, 2023.5.10-12.
H. Hashimoto, R. Yamada, K. Sasaki, K. Yamaguchi, Y. Omori, M. Hosoda, S. Tokonami: False Alarm Reduction in Measurement of Artificial Radionuclide Using a Radioactive Aerosol Monitor. 23rd International Conference on Radionuclide Metrology and its Applications, Bucharest, 2023.3.27.
赤田尚史: 周辺環境･トリチウムに関する研究. 令和5年度電気学会全国大会, 名古屋, 2023.3.15-17. （招待）
中田実希, 田中将裕, 赤田尚史, 岩田智恵, 栗田紗緒里, 林浩: 大型核融合試験施設における大気浮遊じんと降下物に含まれる7Be及び210Pbの測定報告, 第24回「環境放射能」研究会, つくば, 2023.3.8.
栗田紗緒里, 田中将裕, 赤田尚史, 岩田智恵, 中田実希, 林浩: パッシブ法による大型核融合試験施設における 水蒸気状トリチウムの観測報告, 第24回「環境放射能」研究会, つくば, 2023.3.8.
N. Akata, R. Yamada, H. Kuwata, K. Kheamsiri: Monitoring methodology of tritium in the environment. Joint event on Environmental Radioactivity Research Network Center (ERAN) Annual Report Meeting and The 9th Annual Symposium of the IER, Fukushima University, Fukushima, 2023.2.11. (invited)
堀内一穂, 加藤慎士, 大谷昂, 栗田直幸, 津滝俊, 中澤文男, 本山秀明, 川村賢二, 田副博文, 赤田尚史, 山形武靖, 松崎浩之: 南極地域観測隊内陸トラバースルートにおける表面積雪中の10Be空間分布：南緯75度を境とした沈着レジームの変化, 第23回AMSシンポジウム, 山形, 2022.12.1-2.
K. Kheamsiri, N. Akata, H. Kuwata, M. Tanaka, M. Hosoda, M. Sasaki, Y. Shiroma, S. Tokonami, R. Yamada, K. Iwaoka, T. Kovács: Tritium Concentration in Bottled Drinking Water and Internal Dose Assessment. The 9th Educational Symposium on Radiation and Health by young scientists, Aomori (Web), 2022.12.3-4.（優秀プレゼンテーション賞 受賞）
H. Kuwata, K. Kheamsiri, T. Tamari, N. Shima, M. Tanaka, N. Akata: Verification of semi-automatically combustion system for organically bound tritium analysis using NIST pine needle reference material. The 9th Educational Symposium on Radiation and Health by young scientists, Aomori (Web), 2022.12.3-4.
A. Sampei, Y. Oda, M. Kiso, Y. Taira, Y. Omori, H. Tazoe, C. Kranrod, M. Shimizu, H. Kudo, N. Akata, M. Hosoda, S. Tokonami: Atmospheric Radiocesium and Radon Concentrations at the Coastal Area in Fukushima Prefecture. The 9th Educational Symposium on Radiation and Health by young scientists, Aomori (Web), 2022.12.3-4.
Y. Oda, M. Kiso, A. Sampei, H. Hashimoto, Y. Taira, Y. Omori, H. Tazoe, C. Kranrod, M. Shimizu, H. Kudo, N. Akata, M. Hosoda, S. Tokonami: Dose Assessment from the ingestion of Radon-222 and Cesium-137 in Drinking Water at the Coastal Area of Fukushima Prefecture. The 9th Educational Symposium on Radiation and Health by young scientists, Aomori (Web), 2022.12.3-4.
S. Musikawan, Y. Oda, A. Sampei, M. Kiso, C. Kranrod, M. Shimizu, Y. Taira, H. Kikuchi, W. Poltabtim, Y. Omori, H. Tazoe, N. Akata, M. Hosoda, S. Tokonami: Preliminary study on thoron exhalation rates from wall surface using passive type radon and thoron discriminative monitor. The 9th Educational Symposium on Radiation and Health by young scientists, Aomori (Web), 2022.12.3-4.
玉熊佑紀, 橋本啓来, 山田椋平, 大森康孝, 細田正洋, 床次眞司: モンテカルロシミュレーションを用いた連続捕集型ダストモニタの測定ジオメトリの最適化. 第4回日本保健物理学会・日本放射線安全管理学会合同大会, 福岡, 2022.11.24-26. （ポスター）（優秀ポスター賞 受賞）
細田正洋, 玉熊佑紀, 城間吉貴, 仲宗根峻也, 中村夏織, 三瓶葵, 阿部亘孝, 三上清樹, C. Kranrod, 大森康孝, 赤田尚史, 古川雅英, 床次眞司: 可搬型ラドン・トロン散逸率モニタの開発. 第4回日本保健物理学会・日本放射線安全管理学会合同大会, 福岡, 2022.11.24-26.（ポスター）
C. Kranrod, 菊池隼人, 織田侑樹, 木曽水稀, 三瓶葵, 平良文亨, 清水真由美, 工藤ひろみ, 大森康孝, 田副博文, 赤田尚史, 細田正洋, 床次 眞司: Evaluation of the conversion factor (CF) for equilibrium equivalent radon concentration (EERC) using the passive progeny monitor. 第4回日本保健物理学会・日本放射線安全管理学会合同大会, 福岡, 2022.11.24-26.（ポスター）
板津英輔, 水井雅之, 阿部敬明, 赤田尚史, 田副博文：U-8 容器を用いる低エネルギーγ 線放出核種定量のために追加で行う効率校正. 第4回日本保健物理学会・日本放射線安全管理学会合同大会, 福岡, 2022.11.24-26.
赤田尚史, 秋吉優史, 浜田信行, 山田椋平, 伊藤照生, 榎本敦, 清岡英男, 栗原晃一, 佐藤大樹, 野村直希, 廣田誠子, 松原孝祐: 日本保健物理学会企画委員会の活動報告. 第4回日本保健物理学会・日本放射線安全管理学会合同大会, 福岡, 2022.11.24-26.（ポスター）
桑田遥, 玉利俊哉, 島長義, 柿内秀樹, 田中将裕, 田副博文, 赤田尚史: 松葉1575aを用いた有機結合型トリチウム分析のための燃焼システムの評価. 第4回日本保健物理学会・日本放射線安全管理学会合同大会, 福岡, 2022.11.25.
K. Kheamsiri, N. Akata, H. Kuwata, M. Tanaka, M. Hosoda, M. Sasaki, Y. Shiroma, S. Tokonami, K. Iwaoka, T. Kovács: Assessment of Tritium from the Consumption of Bottled Drinking Water. 第4回日本保健物理学会・日本放射線安全管理学会合同大会, 福岡, 2022.11.25.
織田侑樹, 木曽水稀, 三瓶葵, 橋本啓来, 平良文亨, 大森康孝, 田副博文, C. Kranrod, 清水真由美, 工藤ひろみ, 赤田尚史, 細田正洋, 床次眞司: 福島県浜通り地域における飲料水の経口摂取によるラドン-222 とセシウム-137 による線量評価. 第4回日本保健物理学会・日本放射線安全管理学会合同大会, 福岡, 2022.11.25.
山田椋平, 橋本啓来, 玉熊佑紀, 大森康孝, 細田正洋, 赤田尚史, 内山怜, 中田陽, 遠藤倫崇, 今城裕介, 福原隆宏, 床次眞司: 放射性ダストモニタにおける人工放射性核種の弁別手法の検討：214Po－全α計数値相関関係法. 第4回日本保健物理学会・日本放射線安全管理学会合同大会, 福岡, 2022.11.24.
N. Akata, K. Okada, H. Kuwata, K. Kheamsiri, M. Hosoda, H. Tazoe, R. Yasuhara, S. Sugihara, R. Yamada, M. Tanaka: Tritium concentration in natural spring water collected at Hirosaki, Japan. The 31st International Toki Conference on Plasma and Fusion Research (ITC31), On-line, 2022.11.8-11.
桑田遥, 赤田尚史, 田中将裕: 有機結合型トリチウム分析のための燃焼前処理手法に関する研究. 水素同位体の回収･分離技術開発と挙動に関する研究集会, 名古屋, 2022.10.24.
H. Kuwata, K. Kheamsiri, T. Tamari, N. Shima, N. Akata: Evaluation of semi-automatically combustion system for organically bound tritium analysis using reference material of pine needles. VIII. Terrestrial Radioisotopes in Environment International Conference on Environmental Protection, Hungary, 2022.10.5.
K. Kheamsiri, N. Akata, H. Tazoe, K. Okada, N. Otashiro, H. Kuwata, H. Kakiuchi, M. Hosoda, T. Kovács, S. Tokonami: Tritium concentration in natural water samples collected at Fukushima Prefecture after the FDNPP accident. VIII. Terrestrial Radioisotopes in Environment International Conference on Environmental Protection, Hungary, 2022.10.5.
赤田尚史，田中将裕，平尾茂一，玉利俊哉，柿内秀樹，杉原真司，桑田遥，田副博文：気圏環境におけるトリチウム計測技術．日本地球惑星科学連合2022年大会，ハイブリット，2022.5.23. （招待）