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首页> 外文期刊>Pramana >Real-time stand-off detection of improvised explosive materials using time-gated UVa??Raman spectroscopy
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Real-time stand-off detection of improvised explosive materials using time-gated UVa??Raman spectroscopy

机译：使用时间门控UVa ??拉曼光谱法对简易爆炸物进行实时对峙检测

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A transportable, trolley-mounted stand-off explosive material detection system based on the time-gated Raman spectroscopy was developed and tested in our laboratory. This system is capable of identifying the explosives and improvised explosive materials located up to a distance of 30 m. A frequency tripled Nd:YAG, nanosecond pulsed laser (355 nm, 6 ns) operated at 10 Hz was used as an excitation source to induce Raman spectra of explosive materials under investigation. A reflected type 200 mm aperture telescope designed using Zemax opticaldesign software was used to collect the backscattered Raman signals. Raman signals were recorded using the gated intensified charge coupled device (ICCD) spectrograph. A LabVIEW-based data acquisition and analysis software for real-time identification of materials was developed and used. It gives audio as well as text alarm to the operatorabout threat identification.
机译：在我们的实验室中开发并测试了基于时间门控拉曼光谱的可移动，安装在推车上的对峙爆炸物检测系统。该系统能够识别距离不超过30 m的爆炸物和简易爆炸物。频率为10 Hz的Nd：YAG倍频Nd：YAG纳秒脉冲激光（355 nm，6 ns）被用作激发源，以引发正在研究的炸药的拉曼光谱。使用Zemax光学设计软件设计的反射型200毫米孔径望远镜用于收集反向散射拉曼信号。拉曼信号是使用门控增强电荷耦合器件（ICCD）光谱仪记录的。开发并使用了基于LabVIEW的用于材料实时识别的数据采集和分析软件。它向操作员提供有关威胁识别的音频和文本警报。

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