Using infrared backscatter imaging spectroscopy to detect trace explosives at standoff distances
Using infrared backscatter imaging spectroscopy to detect trace explosives at standoff distances
复制标题
使用红外反向散射成像光谱仪检测远距离痕量爆炸物
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
R. McGill
中科院分区：
文献类型：
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作者：
C. Breshike;C. Kendziora;R. Furstenberg;V. Nguyen;Andrew Kusterbeck;R. McGill
我们正在开发一种探测痕量爆炸材料的远距离技术。这项工作的动机是通过远距离探测威胁，防止军人和平民伤亡。成熟的技术将允许以最少的用户努力和足够的时间采取适当行动来轻松识别可能的威胁。这份手稿说明了从我们的红外后向散射成像光谱移动的对峙的方法，在实验室条件下检测痕量的爆炸性材料的结果。所描述的技术使用可调谐量子级联激光器，具有6-11 μm的全光谱覆盖范围，用于照射目标和红外焦平面阵列，以将后向散射信号收集到高光谱图像立方体中。量子级联激光器在人眼安全水平下运行，允许对物体，车辆甚至人进行安全和隐形的探测。在倾斜的衬底上进行实验以模拟不太可能收集镜面反射的真实的世界条件。所收集的高光谱图像立方体包含可以馈送到检测算法的光谱、空间和时间信息。
We are developing a stand-off technique for the detection of trace amounts of explosive materials. The motivation behind this work is to prevent loss of life and injury to military and civilian personal by detecting threats at distance. The matured technique will allow for the facile identification of possible threats with minimum user effort and enough time to take appropriate action. This manuscript illustrates the results from our infrared backscatter imaging spectroscopy mobile stand-off method to detect trace amounts of explosive materials under laboratory conditions. The described technique uses tunable quantum cascade lasers, with full spectral coverage from 6-11 μm, to illuminate a target and an infrared focal plane array to collect the backscattered signal into hyperspectral images cubes. The quantum cascade lasers are operated under eye safe levels which allows for safe and stealthy probing of objects, vehicles, and even people. Experiments are performed on tilted substrates to simulate real world conditions where it is unlikely to collect the specular reflections. The collected hyperspectral image cubes contains spectral, spatial, and temporal information that can be fed to a detection algorithm.