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ID 14906
file
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creator
Kojima, Yasuaki
Shibata, M.
Taniguchi, A.
Kawase, Y.
Doi, R.
Nagao, A.
subject
Radioactivity 151Ce
β-gated measurement
Long-lived level; Decay scheme;
151Pr deduced level
Mass-separation
NDC
Mechanical engineering
abstract
Decay studies on 151Ce have been performed using the on-line isotope separator connected to the Kyoto University Reactor. In addition to conventional γ and conversion electron spectroscopy, β-gated measurements were carried out on mass-separated 151Ce to identify an isomeric transition. From the analysis of the obtained data, the half-life of the isotope was ascertained to be 1.76(6) s and a decay scheme containing six excited levels was constructed for the first time. The excited level at 35.1 keV in 151Pr was found to be a long-lived state (a half-life of approximately 10us or longer).
journal title
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
volume
Volume 564
issue
Issue 1
start page
275
end page
282
date of issued
2006-08
publisher
Elsevier
issn
0168-9002
ncid
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2006 Elsevier B.V.
relation is version of URL
http://dx.doi.org/10.1016/j.nima.2006.05.014
department
Graduate School of Engineering