用于人体藏毒检查的平板真双能透视成像系统

Plate Dual-energy Perspective Imaging System for Body-hidden Drug Inspection

目的:研制一种用于检查人体体内或体表藏毒的基于X射线的平板真双能透视成像系统。方法:系统采用一个高压可以调节的X射线源,2次曝光(50kV/100kV)实现真双能检测,探测系统采用具有高空间分辨力(36lp/cm)、大图像宽容度(16bit)和相对医学透视检查辐射剂量低等特点的平板探测器(FPD)。结果:该系统结合平板探测器的高图像分辨率和图像动态范围,及真双能成像对物质的高分辨能力,可实现对体内藏毒的有效识别。结论:该系统成像快,易于做成防护,是一种适合在禁毒一线现场使用的新型的人体藏毒检查设备。

Objective To develop a X-ray-based plate dual-energy perspective imaging system for body-or body surface-hidden drugs inspection.Methods A X-ray source with a regulable high voltage was used,combined with double exposure（50kV/100kV）,to perform double-energy inspection.FPD was selected as the detection system,which was gifted with high spatial resolution（36 lp/cm）,high image tolerance（16 bit）and low radiation dose.Results FPD combined with dual-energy imaging could inspect body-hidden drugs effectively.Conclusion The plate dual-energy perspective imaging system for body-hidden drug inspection,with a high imaging speed and being easy to perform protection,is an ideal tool for on-the-spot body-hidden drug inspection.