ISSN:
1434-601X
Keywords:
PACS. 23.20.Lv Gamma transitions and level energies – 23.40.-s Beta decay; double beta decay; electron and muon capture – 27.90.+b A ≥ 220
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: 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].
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1140/epja/i2002-10112-y
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