X-ray scatter tomography for explosives detection
X-ray scatter tomography for explosives detection
复制标题
DOI：
10.1016/j.radphyschem.2004.04.111
复制
发表时间：
2004-10-01
影响因子：
2.9
通讯作者：
Harding, G
中科院分区：
文献类型：
--
作者：
Harding, G
介绍了基于X射线散射层析成像的三种爆炸物探测技术，即相干散射计算机层析成像、能量色散X射线衍射层析成像和康普顿背散射成像。在介绍了基本的X射线相互作用现象的物理学之后，详细阐述了这些成像技术所基于的原理。简要描述了一些相关的X射线散射系统的设计和优化这些参数的目标应用程序的参数。信号退化由于自衰减的初级和散射辐射和多次散射的讨论和程序，以纠正这些影响。上述技术已被应用于识别和检测问题的爆炸性材料在机场行李和埋地雷。决策标准需要限制的“假警报”的数量进行了讨论。文中给出了行李检查和排雷领域的代表性结果。(C)2004爱思唯尔有限公司保留所有权利。
An account is given of three explosive detection techniques based on X-ray scatter tomography i.e. coherent scatter computed tomography, energy-dispersive X-ray diffraction tomography and Compton back-scatter imaging. Following an introduction to the physics of the underlying X-ray interaction phenomena, the principles on which these image-forming techniques are based are elaborated. A brief description is given of some of the parameters relevant to the X-ray scatter system design and of the optimisation of these parameters for the target application. Signal degradation owing to self- attenuation of the primary and scatter radiations and multiple scattering is discussed and procedures to correct for these effects are presented.The above techniques have been applied to the problem of identifying and detecting explosive material in airport baggage and buried land mines. Decision criteria needed to limit the number of "false alarms" are discussed. Representative results drawn from the fields of baggage inspection and mine clearance are given. (C) 2004 Elsevier Ltd. All rights reserved.