Identification of fissile materials from fission product gamma-ray spectra

被引：45
|
作者：
Beddingfield, DH
Cecil, FE
机构：
[1] Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[2] Colorado Sch Mines, Golden, CO 80401 USA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 417卷 / 2-3期
关键词：
D O I：
10.1016/S0168-9002(98)00781-5
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new active-passive nondestructive assay technique has been developed to identify fissile materials by observing the gamma-ray emissions from induced fission products. This technique entails using a neutron source to induce fissions in unknown containerized fissile materials and to subsequently observe high energy peaks (> 800 keV) in the fission product gamma-ray spectrum. Ratios of the observed peak intensities are then formed. The values of these ratios can be compared to calculated theoretical values to identify the fissile material, The present work focuses on the differentiation between U-235 and Pu-239. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：405 / 412
页数：8
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