Alpha decays of 221Pa and 218,219Ac

H. Miyatake, T. Nomura, S. Kubono, J. Tanaka, M. Oyaizu, H. Okawa, Nobuo Ikeda, K. Sueki, H. Kudo, Kosuke Morita, T. Shinozuka

研究成果: ジャーナルへの寄稿記事

16 引用 (Scopus)

抜粋

The θ-decays of neutron deficient actinium (218,219Ac) and protoactinium (221Pa) nuclides produced in the 16O-bombardment of 205TI and 209Bi have been studied using a gas-filled recoil isotope separator (GARIS). Their α-decays were detected with a large Si counter placed at a focal plane of GARIS. The α-decay energy of 221Pa has been measured for the first time to be Eα = 9.08 ± 0.03 MeV. The half-lives of 221Pa, 218Ac and 219Ac were determined more precisely than those reported previously; they are 5.9 ± 1.7, 1.06 ±0.09 and 11.8 ±1.5 μs, respectively. The present value for 219Ac is significantly different from the previous measurement. The reduced α-widths of N = 130 isotones are compared with the shell model calculations.

元の言語英語
ページ(範囲)557-567
ページ数11
ジャーナルNuclear Physics, Section A
501
発行部数3
DOI
出版物ステータス出版済み - 9 25 1989
外部発表Yes

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

これを引用

Miyatake, H., Nomura, T., Kubono, S., Tanaka, J., Oyaizu, M., Okawa, H., ... Shinozuka, T. (1989). Alpha decays of 221Pa and 218,219Ac. Nuclear Physics, Section A, 501(3), 557-567. https://doi.org/10.1016/0375-9474(89)90148-6