期刊
出版社
ELSEVIER
DOI: 10.1016/j.nimb.2007.04.036
关键词
dual-energy x-ray; radiography; nuclear material detection
There is an urgent need for high-Z material detection in cargo. Materials with Z > 74 can indicate the presence of fissile materials or radiation shielding. Dual (high) energy X-ray material discrimination is based on the fact that different materials have different energy dependence in X-ray attenuation coefficients. This paper introduces the basic physics and analyzes the factors that affect dual-energy material discrimination performance. A detection algorithm is also discussed. (c) 2007 Elsevier B.V. All rights reserved.
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