Age-dating of highly enriched Uranium by γ-spectrometry

被引：19
作者：
Nguyen, CT [1 ]
机构：
[1] Hungarian Acad Sci, Inst Isotopes, H-1525 Budapest, Hungary
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2005年 / 229卷 / 01期
关键词：
uranium age dating; low background gamma-spectrometry; nuclear forensics; illicit trafficking of nuclear materials; fissile material cut-off treaty;
D O I：
10.1016/j.nimb.2004.10.089
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A non-destructive, gamma-spectrometric method for uranium age-dating is reported for the first time. The method relies on measuring the daughter/parent activity ratio Bi-214/U-234 by low-background, high-resolution gamma-spectrometry and does not require the use of reference samples of known ages. The initial methodology was derived during a "Round-Robin" exercise, in which the properties of a HEU material relevant to nuclear forensics were assessed by several laboratories. The Uranium-age obtained by this gamma-spectrometric method is in agreement with the results reported by other participating laboratories, which used mass-spectrometry for age dating. (C) 2004 Elsevier B.V. All rights reserved.
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收藏
页码：103 / 110
页数：8
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