Decay Studies of Neutron-deficient Am, Cm, and Bk Nuclei Using an On-line Isotope Separator

M. Asai; M. Sakama; K. Tsukada; S. Ichikawa; H. Haba; I. Nishinaka; Y. Nagame; S. Goto; K. Akiyama; A. Toyoshima; Y. Kojima; Y. Oura; H. Nakahara; M. Shibata; K. Kawade

doi:10.14494/jnrs2000.3.187

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

Author information

M. Asai
Advanced Science Research Center, Japan Atomic Energy Research Institute
M. Sakama
Deparmment of Radiologic Science and Engineering, University of Tokushima
K. Tsukada
Advanced Science Research Center, Japan Atomic Energy Research Institute
S. Ichikawa
Advanced Science Research Center, Japan Atomic Energy Research Institute
H. Haba
Advanced Science Research Center, Japan Atomic Energy Research Institute
I. Nishinaka
Advanced Science Research Center, Japan Atomic Energy Research Institute
Y. Nagame
Advanced Science Research Center, Japan Atomic Energy Research Institute
S. Goto
Department of Chemistry, Niigata University
K. Akiyama
Advanced Science Research Center, Japan Atomic Energy Research Institute
Department of Chemistry, Tokyo Metropolitan University
A. Toyoshima
Advanced Science Research Center, Japan Atomic Energy Research Institute
Department of Chemistry, Osaka University
Y. Kojima
Graduate School of Engineering, Hiroshima University
Y. Oura
Department of Chemistry, Tokyo Metropolitan University
H. Nakahara
Department of Chemistry, Tokyo Metropolitan University
M. Shibata
Facility for Nuclear Materials, Nagoya University
K. Kawade
Department of Energy Engineering and Science, Nagoya University

JOURNAL FREE ACCESS

2002 Volume 3 Issue 1 Pages 187-190

DOI https://doi.org/10.14494/jnrs2000.3.187

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Abstract

The EC and α decays of neutron-deficient Am and Cm nuclei have been studied using a gas-jet coupled on-line isotope separator. Decay schemes of the EC decay of ^{235, 236}Am have been constructed, and weak α decays of ^{233, 235, 236}Am and ^{237, 238}Cm have been observed. The efficiency of the on-line mass separation of Bk nuclei was measured to be ∼1%. The Q_α values, α-decay partial half-lives, and proton-neutron configurations are discussed.

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