Radioactivity of Cr-51 in stainless steel collected from residences in theJCO neighborhood

Authors
Endo, S Tosaki, N Shizuma, K Ishikawa, M Takada, J Suga, S Kitagawa, K Hoshi, M
Citation
S. Endo et al., Radioactivity of Cr-51 in stainless steel collected from residences in theJCO neighborhood, J ENV RAD, 50(1-2), 2000, pp. 83-88
Citations number
3
Categorie Soggetti
Environment/Ecology
Journal title
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
ISSN journal
0265931X → ACNP
Volume
50
Issue
1-2
Year of publication
2000
Pages
83 - 88
Database
ISI
SICI code
0265-931X(2000)50:1-2<83:ROCISS>2.0.ZU;2-4
Abstract
Stainless-steel (SS) samples activated by fission neutrons from the JCO cri ticality accident have been measured by low-background germanium spectromet ers. The SS-samples, comprising 14 spoons and 4 other items, were collected from residences located at 130-700 m from the JCO site. Five SS-samples fr om within a ground distance of 400 m from JCO were identified as containing Cr-51 activity, which was produced by the Cr-50(n, gamma)Cr-51 reaction. T he chromium specific activities of Cr-51/Cr are preliminarily obtained to b e 0.45-0.04 Bq/g-Cr for the 5 samples collected at 130-400 m distance. (C) 2000 Elsevier Science Ltd. All rights reserved.