Identification of the new isotope 241Bk

M. Asai, K. Tsukada, S. Ichikawa, M. Sakama, H. Haba, Y. Nagame, I. Nishinaka, K. Akiyama, A. Toyoshima, T. Kaneko, Y. Oura, Y. Kojima, M. Shibata

研究成果: Contribution to journalArticle査読

9 被引用数 (Scopus)

抄録

A new neutron-deficient berkelium isotope 241Bk produced in the 239Pu(6Li, 4n) reaction has been identified using a gas-jet coupled on-line isotope separator. Cm K and L X-rays associated with the EC decay of 241Bk were observed in the mass-241 fraction, and three γ transitions were attributed to the EC decay of 241Bk through X-γ coincidences. The half-life of 241Bk was determined to be 4.6±0.4 min which is 1/2-1/4 of that of theoretical predictions. The half-life value and the observed γ transitions can be consistently explained as a consequence of the allowed EC transition of π7/2 +[633] → ν7/2+[624].

本文言語英語
ページ(範囲)17-19
ページ数3
ジャーナルEuropean Physical Journal A
16
1
DOI
出版ステータス出版済み - 12 1 2003
外部発表はい

All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学

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