Kokubu Yoko

コクブヨウコ | Kokubu Yoko

Affiliation and department：

Research field (1)： Analytical chemistry

Research keywords (6)：プルトニウム , 放射性炭素 , TIMS , ICP-MS , AMS , 質量分析

Research theme for competitive and other funds (12)：

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Papers (63)：

Kokubu Yoko, Fujita Natsuko, Watanabe Takahiro, Matsubara Akihiro, Ishizaka Chika, Miyake Masayasu*, Nishio Tomohiro*, Kato Motohisa*, Ogawa Yumi*, Ishii Masahiro*, et al. Status report of JAEA-AMS-TONO; Research and technical development in the last four years. Nuclear Instruments and Methods in Physics Research B. 2023. 539. 68-72
Nara Fumiko*, Watanabe Takahiro, Kokubu Yoko, Zhu L.*. $^{10}$Be analysis of the rock samples from the northeastern shore of Lake Pumoyum Co in south Tibetan Plateau. Nuclear Instruments and Methods in Physics Research B. 2023. 539. 28-32
Fujita Natsuko, Matsubara Akihiro, Kimura Kenji, Jinno Satoshi, Kokubu Yoko. Project for development of a downsized AMS system based on the surface stripper technique. Nuclear Instruments and Methods in Physics Research B. 2022. 532. 13-18
Fujita Natsuko, Miyake Masayasu*, Matsubara Akihiro, Kokubu Yoko, Klein M.*, Scognamiglio G.*, Mous D. J. W.*, Columna E. L.*, Shimada Akiomi, Ishimaru Tsuneari. The New 300 kV multi-element AMS system at the TONO Geoscience Center, Japan Atomic Energy Agency. Nuclear Instruments and Methods in Physics Research B. 2022. 533. 91-95
Takehiro Mitsuguchi, Keiji Minakata, Kaoru Sugihara, Masanori Hiraoka, Masa-aki Yoshida, Yoko Saito-Kokubu. Mineral phase analysis of various marine-species shells and skeletons collected in Japan: Implications for marine biominerals. 2022

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MISC (100)：

Takeuchi Ryuji, Kokubu Yoko, Nishio Kazuhisa*. Results of groundwater pressure and hydro-chemical monitoring as part of environmental monitoring investigation in backfilling of shafts and tunnels of Mizunami Underground Research Laboratory (2022). JAEA-Data/Code 2023-014. 2024. 118
Takeuchi Ryuji, Nishio Kazuhisa*, Kokubu Yoko. Results of environmental impact investigations as part of environmental monitoring investigation in backfilling of shafts and tunnels of Mizunami Underground Research Laboratory (2022). JAEA-Data/Code 2023-013. 2024. 74
Takeuchi Ryuji, Mikake Shinichiro, Ikeda Koki, Nishio Kazuhisa*, Kokubu Yoko, Hanamuro Takahiro. Report of backfilling and restoration works in the Mizunami Underground Research Laboratory. JAEA-Review 2023-007. 2023. 114
Takeuchi Ryuji, Nishio Kazuhisa*, Hanamuro Takahiro, Kokubu Yoko. Results of environmental impact investigations as part of environmental monitoring investigation in backfilling of shafts and tunnels of Mizunami Underground Research Laboratory (2020-2021). JAEA-Data/Code 2022-010. 2023. 110
Matsubara Akihiro*, Fujita Natsuko, Miyake Masayasu, Ishii Masahiro*, Watanabe Takahiro, Kokubu Yoko, Nishio Tomohiro*, Ogawa Yumi, Jinno Satoshi, Kimura Kenji, et al. Present status of the JAEA-AMS-TONO (2021). JAEA-Conf 2022-002. 2023. 55-62

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Patents (4)：

Books (4)：

Lectures and oral presentations (114)：

None
(第53回放射線環境・安全に関する研究会)
Pit excavation and radiocarbon dating in the middle part of the Atera fault zone
(日本活断層学会2023年度秋季学術大会)
AMS-$^{14}$C measurement of 670-year-old giant Japanese cedar - 1871-2020 CE
(9th East Asia Accelerator Mass Spectrometry Symposium (EA-AMS 9))
Soil carbon dynamics revealed by radiocarbon
(第70回日本生態学会大会)
Estimating the age of heterotrophic respiration and its influence factors using radiocarbon
(第134回日本森林学会大会)

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Professional career (1)：

Awards (4)：

2018/03 - 日本原子力学会日本原子力学会奨励賞地層処分に影響を与えると考えられる自然現象を対象とした年代測定法の整備
2009/09 - 日本放射化学会日本放射化学会2009年奨励賞環境試料中の極微量核物質の同位体比分析に関する研究
2007/04 - 日本原子力学会北関東支部日本原子力学会北関東支部最優秀発表賞長崎原爆由来のプルトニウムとセシウム-137に関する研究 -過去60年間の西山貯水池堆積物への蓄積と現在の土壌表層平面分布-
2004/03 - 日本原子力学会第36回日本原子力学会賞技術開発賞保障措置環境試料のための微量分析技術の開発

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