| 激光支持等离子体爆轰波温度的实验测量 |
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| 引用本文： | 鲁建英,陈朗,伍俊英,冯长根.激光支持等离子体爆轰波温度的实验测量[J].高压物理学报,2009,23(2). |
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| 作者姓名： | 鲁建英 陈朗 伍俊英 冯长根 |
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| 作者单位： | 1. 北京理工大学爆炸科学与技术国家重点实验室,北京,100081;防化指挥工程学院,北京,102205
2. 北京理工大学爆炸科学与技术国家重点实验室,北京,100081 |
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| 摘 要： | 高能量激光聚焦空气产生等离子体，等离子体进一步吸收激光能量会形成激光支持等离子体爆轰波。等离子体爆轰波温度是表征爆轰波的一个重要参数，研究等离子体爆轰波温度对于深入了解激光支持等离子体爆轰波形成机理有重要意义。分析了激光聚焦空气形成等离子体爆轰波过程和影响等离子体爆轰波温度的主要因素。采用多通道瞬态光学高温计，测量了不同激光发射能量下空气中形成的激光支持等离子体爆轰波的辐射强度，获得了一系列等离子体爆轰波温度动态变化曲线。测量结果表明：等离子爆轰波温度在随时间演化过程中出现3个峰，最高温度在7 000～10 000 K范围内；激光能量与等离子体爆轰波温度没有明显的相关性。
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| 关 键 词： | 等离子体 温度 激光 爆轰波 冲击波 |
| 收稿时间： | 2008-04-13; |
Temperature Measurement of Laser-Induced Plasma Detonation Wave |
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| LU Jian-Ying,CHEN Lang,WU Jun-Ying,FENG Chang-Gen.Temperature Measurement of Laser-Induced Plasma Detonation Wave[J].Chinese Journal of High Pressure Physics,2009,23(2). |
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| Authors: | LU Jian-Ying CHEN Lang WU Jun-Ying FENG Chang-Gen |
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| Institution: | 1.State Key Laboratory of Explosion Science and Technology;Beijing Institute of Technology;Beijing 100081;China;2.The Institute of Chemical Defence;Beijing 102205;China |
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| Abstract: | When a highly intensive laser beam is focused into quiescent air,a laser induced plasma detonation wave is generated.The plasma temperature is an important parameter to describe the plasma detonation wave characters.It is significant to obtain the plasma temperature by experimental method for understanding the mechanism of laser supported detonation wave.In this paper,the ignition,growth and propagation of the laser induced plasma detonation waves were theoretically analyzed and a laser supported detonation... |
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| Keywords: | plasma temperature laser detonation wave shock wave |
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