Shigekawa Yudai

Affiliation
Institute of Pure and Applied Sciences
Official title
Assistant Professor
Research keywords
electron spectroscopy
half-life variation
uranium 235
RF carpet
gas cell
Ion trap
super heavy elements
radiochemistry
nuclear chemistry
thorium 229
more...
Research projects
Variations of the decay modes of 235mU and 229mTh depending on the chemical environment2013-04 -- 2016-03Kasamatsu Yoshitaka; SHIGEKAWA Yudai; YASUDA YukiJapan Society for the Promotion of Science/Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)4,290,000Yen
化学状態により変化するTh-229mの核壊変機構の解明2016-04 -- 2019-03重河 優大日本学術振興会/特別研究員奨励費2,800Yen
Elucidation of the nuclear decay property of Th-229m utilizing Ac-2292016-08 -- 2021-03Shigekawa YudaiJapan Society for the Promotion of Science/Grants-in-Aid for Scientific Research Grant-in-Aid for Research Activity Start-up2,860Yen
Observing the electron bridge process of the Th-229 isomer utilizing ion-molecule reactions2020-04 -- 2023-03重河 優大Japan Society for the Promotion of Science/Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists4,160,000Yen
レーザーによるコヒーレントな原子核操作の実現ー原子核時計の創成と応用に向けて2021-04 -- 2025-03吉村 浩司; 北尾 真司; 菊永 英寿; 重河 優大; 笠松 良崇; 山口 敦史Japan Society for the Promotion of Science/Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)42,250,000Yen
もつれ光子対放出原子核と分子プローブの創成による生体内化学環境の医療診断2022-05 -- 2025-03重河 優大; 杉山 暁; 野村 幸世日本学術振興会/科学研究費助成事業 学術変革領域研究(B)28,080,000Yen
光子対診断治療学の総括2022-05 -- 2025-03島添 健次; 富田 英生; 佐藤 健; 重河 優大日本学術振興会/科学研究費助成事業 学術変革領域研究(B)4,290,000Yen
トリウム229核異性体の内部転換抑制手法の開発によるガンマ線放出過程の解明2023-04 -- 2027-03重河 優大日本学術振興会/科学研究費助成事業 基盤研究(B)18,590,000Yen
トリウム229核異性体の内部転換抑制手法の開発によるガンマ線放出過程の解明2023-04 -- 2027-03重河 優大; 山口 敦史日本学術振興会/科学研究費助成事業18,590,000Yen
Career history
2016-09 -- 2017-08ウィーン工科大学Atominstitut研究生
2018-10 -- 2018-10JSPSJSPS research fellow (PD) withdrawal
2016-04 -- 2019-03JSPSJSPS research fellow (DC1)
2019-04 -- 2022-03RIKENNuclear Chemistry Research Team, RI Application Research Group, RIKEN Nishina Center for Accelerator-Based ScienceSpecial Postdoctoral Researcher (SPDR)
2022-04 -- 2023-03RIKENNuclear Chemistry Research Team, RI Application Research Group, RIKEN Nishina Center for Accelerator-Based SciencePostdoctoral Researcher
2023-04 -- 2025-03RIKENRIKEN Nishina Center for Accelerator-Based Science, Nuclear Chemistry GroupPostdoctoral Researcher
2025-04 -- 9999University of TsukubaDepartment of Chemistry, Institute of Pure and Applied SciencesAssistant Professor
Academic background
2010-04 -- 2014-03Osaka University Undergraduate School of Science Department of Chemistry
2014-04 -- 2016-03Osaka University Graduate School of Science Department of Chemistry
2016-04 -- 2019-03Osaka University Graduate School of Science Department of Chemistry
Academic societies
-- (current)THE JAPAN SOCIETY OF NUCLEAR AND RADIOCHEMICAL SCIENCES
-- (current)THE PHYSICAL SOCIETY OF JAPAN
-- (current)THE CHEMICAL SOCIETY OF JAPAN
Honors & Awards
2014-09若手優秀発表賞U-235mの脱励起過程の研究に向けた反跳核捕集装置の開発
2017-09若手優秀発表賞<sup>233</sup>Uのα線-電子コインシデンス測定による<sup>229</sup>Thの内部転換電子観測の試み
2018-09若手優秀発表賞阻止電場ー磁気ボトル型電子分光装置の開発およびU-235mの内部転換電子分光測定
2023-03RIKEN Ohbu Research Incentive AwardEstimation of radiative half-life of <sup>229m</sup>Th by half-life measurement of other nuclear excited states in <sup>229</sup>Th
2023-09若手優秀発表賞（日本放射化学会第67回討論会(2023)）Th-229mの電子架橋遷移の観測に向けたTh-229mイオンの引き出しとトラップ
2025-032024 RIKEN EIHO Award原子核時計実現にむけた、イオントラップに捕獲されたトリウム229アイソマーの寿命測定

(Last updated: 2025-04-11)