Precise measurement of gamma-ray emission probabilities for W-187 by usinga two-dimensional 4 pi beta-gamma coincidence system

Authors
Marnada, N Nagata, H Ueda, N Ikeda, K Hayashi, N Mori, C Miyahara, H
Citation
N. Marnada et al., Precise measurement of gamma-ray emission probabilities for W-187 by usinga two-dimensional 4 pi beta-gamma coincidence system, J NUC SCI T, 36(12), 1999, pp. 1119-1124
Citations number
14
Categorie Soggetti
Nuclear Emgineering
Journal title
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
ISSN journal
00223131 → ACNP
Volume
36
Issue
12
Year of publication
1999
Pages
1119 - 1124
Database
ISI
SICI code
0022-3131(199912)36:12<1119:PMOGEP>2.0.ZU;2-7
Abstract
Gamma-ray emission probabilities for W-187 have been determined with uncert ainties less than 1% from measurement of absolute gamma-ray intensities and disintegration rate. The measured emission probabilities are larger than t hose previously reported by about 20% and hence the beta-ray branching rati o to the ground state has to be smaller than about 40%. The decay scheme of W-187 calculated by using the present results is given as a final result.