| kHz激光与固体靶相互作用产生的X射线源 |
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| 引用本文： | 黄开,闫文超,李明华,陶孟泽,陈燕萍,陈洁,远晓辉,赵家瑞,马勇,李大章,高杰,陈黎明,张杰.kHz激光与固体靶相互作用产生的X射线源[J].物理学报,2013,62(20):205204-205204. |
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| 作者姓名： | 黄开 闫文超 李明华 陶孟泽 陈燕萍 陈洁 远晓辉 赵家瑞 马勇 李大章 高杰 陈黎明 张杰 |
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| 作者单位： | 1. 中国科学院物理研究所, 光物理重点实验室, 北京 100190;2. 上海交通大学, 激光等离子体教育部重点实验室, 上海 200240;3. 中国科学院高能物理研究所, 北京 100049 |
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| 摘 要： | 利用kHz激光与固体靶相互作用产生了平均流强为1.3×107 photons·sr-1·s-1的X射线源, 研究了激光的对比度和能量对激光与固体靶相互作用产生的X射线能谱及Kα 产额的影响, 使用刀边成像技术测量了X射线源的源尺寸, 并进行了初步的成像实验. 实验中观察到对于非相对论级别的激光脉冲, 降低激光的对比度有利于提高Kα 产额, 而使用高对比度高强度激光, 更有利于获得高通量高信噪比X射线源.
关键词：
kHz激光
固体靶
X射线
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| 关 键 词： | kHz激光 固体靶 X射线 |
| 收稿时间： | 2013-03-13 |
X-ray source produced by laser solid target interaction at kHz repetition rate |
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| Huang Kai,Yan Wen-Chao,Li Ming-Hua,Tao Meng-Ze,Chen Yan-Ping,Chen Jie,Yuan Xiao-Hui,Zhao Jia-Rui,Ma Yong,Li Da-Zhang,Gao Jie,Chen Li-Ming,Zhang Jie.X-ray source produced by laser solid target interaction at kHz repetition rate[J].Acta Physica Sinica,2013,62(20):205204-205204. |
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| Authors: | Huang Kai Yan Wen-Chao Li Ming-Hua Tao Meng-Ze Chen Yan-Ping Chen Jie Yuan Xiao-Hui Zhao Jia-Rui Ma Yong Li Da-Zhang Gao Jie Chen Li-Ming Zhang Jie |
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| Abstract: | X-ray radiation with an average flux of 1.3×107 photons·sr-1·s-1 is generated by the interaction between ultra-short laser and solid target working at 1 kHz repetition rate. A knife edge is introduced to measure the source size. The X-ray emission shows obvious dependences on the laser contrast and intensity. It is discovered that at lower intensity the Kα yield increases with lower laser contrast. However, by using high contrast and high intensity laser pulses, high flux and high signal-to-noise ratio Kα X-ray can be generated. The generated source is used in proof-of-principle radiograghic imaging of simple specimens.
Keywords：
kHz laser
solid target
X-ray source |
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| Keywords: | kHz laser solid target X-ray source |
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