School personnel information





Mail Address

Mail Address

Laboratory Phone number


Laboratory Fax number




Organization 【 display / non-display

  • 2010.04.01 - 2016.03.31, Department of Chemistry, Graduate School of Science, Assistant Professor

  • 2016.04.01 - , Department of Chemistry, Graduate School of Science, Associate Professor

  • 2018.04.01 - , Institute for Radiation Sciences

Education 【 display / non-display

Osaka University Graduate School, Division of Natural Science Department of Chemistry Completed Ph.D. 2006.03

Employment Record 【 display / non-display

Japan Atomic Energy Agency, Postdoctoral fellow 2006.04 - 2009.03
RIKEN, Research associate 2009.04 - 2010.03
Osaka University, Assistant Professor 2010.04 - 2016.03

Research topics 【 display / non-display

  • Researches on nuclear chemistry
    Inorganic/coordination chemistry-related

Academic Society Membership 【 display / non-display

  • The Chemical Society of Japan

  • The Japan Society of Nuclear and Radiochemical Sciences

  • The Physical Society of Japan


Academic Papers 【 display / non-display

  • Solvent extraction of Zr and Hf from HCl by Aliquat 336 using a flow-type extraction apparatus toward online chemical studies of element 104, rutherfordium, Y. Kasamatsu, N. Kondo, K. Nakamura, Y. Kuboki, H. Ninomiya, Y. Shigekawa, E. Watanabe, Y. Yasuda, K. Toyomura, M. Nagase, T. Yokokita, Y. Komori, H. Haba, T. Yoshimura, H. Itabashi, and A. Shinohara, Solvent Extr. Ion Exch.,38 in press, 2020.02, Papers

  • Observation of internal-conversion electrons emitted from 229mTh produced by beta decay of 229Ac, Y. Shigekawa, Y. Kasamatsu, E. Watanabe, H. Ninomiya, S. Hayami, N. Kondo, Y. Yasuda, H. Haba, and A. Shinohara, Phys. Rev. C,100 044304, 2019.10, Papers

  • X-ray pumping of the 229Th nuclear clock isomer, T. Masuda, A. Yoshimi, A. Fujieda, H. Fujimoto, H. Haba, H. Hara, T. Hiraki, H. Kaino, Y. Kasamatsu, S. Kitao, K. Konashi, Y. Miyamoto, K. Okai, S. Okubo, N. Sasao, M. Seto, T. Schumm, Y. Shigekawa, K. Suzuki, S. Stellmer, K. Tamasaku, S. Uetake, M. Watanabe, T. Watanabe, Y. Yasuda, A. Yamaguchi, Y. Yoda, T. Yokokita, M. Yoshimura, K. Yoshimura, Nature,573 238-242, 2019.09, Papers

  • Development of new methods for aqueous chemistry on element 104, rutherfordium: Batch-type solid-liquid extraction and coprecipitation, Y. Kasamatsu, J. Nucl. Radiochem. Sci.,18, 24-31 (2018), 2018.12, Review Papers

  • Variation of half-life and internal-conversion electron energy spectrum between 235mU oxide and fluoride, Y. Shigekawa, Y. Kasamatsu, Y. Yasuda, M. Kaneko, M. Watanabe, and A. Shinohara, Phys. Rev. C,98, 014306/1-5 (2018), 2018.07, Papers

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Books 【 display / non-display

  • Dictionary, Dictionary of Nuclear Chemistry, Y. Nagame and others, ISBN, 978-4-254-36265-7, 2015.09