A METHOD FOR DETECTION OF EXPLOSIVES BASED ON NUCLEAR-RESONANCE ABSORPTION OF GAMMA-RAYS IN N-14

被引：18
|
作者：
VARTSKY, D
ENGLER, G
GOLDBERG, MB
机构：
[1] Soreq NRC, Yavne
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1994年 / 348卷 / 2-3期
关键词：
D O I：
10.1016/0168-9002(94)90825-7
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The physical principles the of Nuclear Resonance Absorption (NRA) method and its application to explosives detection are described. In this method, the object to be tested is scanned by a beam of 9.17 MeV gamma rays which undergoes resonant attenuation whenever the beam encounters regions of nitrogen concentration. This resonant component of attenuation is detected using an array of gamma ray detectors containing a nitrogen-rich medium. From the reconstructed spatial distribution of nitrogen density obtained in multi-view scanning, the presence of an explosive can be determined.
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页码：688 / 691
页数：4
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