公开(公告)号：US20050089140A1

公开(公告)日：2005-04-28

申请号：US10712415

申请日：2003-11-12

申请人： Arthur Mario ,  Scott Kravis

发明人： Arthur Mario ,  Scott Kravis

IPC分类号： G01N23/04 ,  G01V5/00 ,  G01B15/06 ,  G01N23/02

CPC分类号： G01N23/046 ,  G01N2223/419 ,  G01V5/0016 ,  G01V5/0025 ,  G01V5/005

摘要： X-ray radiation is transmitted through and scattered from an object under inspection to detect weapons, narcotics, explosives or other contraband. Relatively fast scintillators are employed for faster X-ray detection efficiency and significantly improved image resolution. Detector design is improved by the use of optically adiabatic scintillators. Switching between photon-counting and photon integration modes reduces noise and significantly increases overall image quality.

摘要翻译： X射线辐射通过检查物体传播并散射，以检测武器，麻醉品，爆炸物或其他违禁品。 采用相对较快的闪烁体用于更快的X射线检测效率和显着提高的图像分辨率。 通过使用光学绝热闪烁体改进检测器设计。 在光子计数和光子积分模式之间切换可以降低噪音并显着提高整体图像质量。

公开(公告)号：US20060140340A1

公开(公告)日：2006-06-29

申请号：US10444492

申请日：2003-05-27

申请人： Scott Kravis

发明人： Scott Kravis

IPC分类号： G01N23/04

CPC分类号： G01V5/0025 ,  G01N23/20 ,  G01V5/0041

摘要： A baggage scanning system and method employ combined angular and energy dispersive x-ray scanning to detect the presence of a contraband substance within an interrogation volume of a baggage item. The interrogation volume is illuminated with penetrating, polychromatic x-rays in a primary fan beam from a source such as a tungsten-anode x-ray tube. An energy-dependent absorption correction is determined from measurement of the attenuation of the fan beam at a plurality of different energies. Radiation coherently scattered by substances in the interrogation volume is detected by an energy-resolved x-ray detector operated at a plurality of scattering angles to form a plurality of scattering spectra. Each scattering spectrum is corrected for energy-dependent absorption and the corrected spectra are combined to produce a scattering pattern. The experimental scattering pattern is compared with reference patterns that uniquely characterize known contraband substances. The system and method can locate and identify a wide variety of contraband substances in an accurate, reliable manner. The system provides for automated screening, with the result that vagaries of human performance are virtually eliminated. False alarms and the need for hand inspection are reduced and detection efficacy is increased.

摘要翻译： 行李扫描系统和方法采用组合的角度和能量色散X射线扫描来检测行李物品的询问体积内的违禁物质的存在。 在来自诸如钨阳极x射线管的源的主扇形束中，通过穿透的多色X射线照射询问体积。 通过在多个不同能量下测量扇形束的衰减来确定能量依赖性吸收校正。 通过在多个散射角度下操作的能量分辨的x射线检测器来检测询问体中的物质相干散射的辐射，以形成多个散射光谱。 针对能量依赖吸收校正每个散射光谱，并将校正的光谱组合以产生散射图。 将实验散射模式与唯一表征已知违禁物质的参考模式进行比较。 系统和方法可以准确，可靠地定位和识别各种违禁物质。 该系统提供自动化筛选，结果是几乎消除了人类行为的变幻莫测。 假警报和手检需求降低，检测效果提高。