| 无机爆炸物及其主要成分的激光诱导击穿光谱实验研究 |
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| 作者姓名： | Zhao H Wang QQ Liu K Ge CH |
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| 作者单位： | 北京理工大学光电学院 |
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| 基金项目： | 国家自然科学基金项目(60978035)资助 |
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| 摘 要： | 以一种常见的无机爆炸物——黑火药及其主要成分硝酸钾作为研究对象,硝酸钠样品作为参照物,使用1 064nm调Q激光器作为光源,进行实验研究。获得了不同环境气体(空气和氩气)中三种样品的击穿诱导等离子体光谱,在不同延迟条件下获得了三种样品的时间分辨谱,并分析了三种样品的O/N谱线强度比值随延时的变化,得出在延时596ns时,O/N比值达到最大值。
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| 关 键 词： | 激光诱导击穿光谱 时间分辨 黑火药 氩气 |
Research on inorganic explosive and its principal component with laser-induced breakdown spectroscopy |
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| Zhao H,Wang QQ,Liu K,Ge CH.Research on inorganic explosive and its principal component with laser-induced breakdown spectroscopy[J].Spectroscopy and Spectral Analysis,2012,32(3):577-581. |
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| Authors: | Zhao Hua Wang Qian-qian Liu Kai Ge Cong-hui |
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| Institution: | College of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China. zhhhua1224@sina.com |
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| Abstract: | Laser-induced breakdown spectroscopy is a technology that can be used for high-speed, real time, multi-component, online, remote detection, and it has considerable superiority in explosives detection. In the present experiment, using 1 064 nm Q-switch laser beam as the resource, the authors investigated a common inorganic explosive (black powder) and one of its key components (KNO3), while choosing NaNO3 as the reference. We obtained the LIBS spectroscopy of these three samples in two surrounding atmospheres (air and Ar gas) at different time delay. And we analysed the change in line intensity ratio of N, O along with the increase in time delay, and found that the maximum of the value of O/N is obtained at time delay 596 ns. |
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| Keywords: | Laser-induced breakdown spectroscopy(LIBS) Time resolution Black powder Ar surrounding gas |
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