| X射线点投影技术在高能量密度物理相关实验中的应用 |
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| 引用本文： | 董佳钦,傅思祖,王伟,熊俊,贾果,方智恒.X射线点投影技术在高能量密度物理相关实验中的应用[J].强激光与粒子束,2010,22(10). |
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| 作者姓名： | 董佳钦 傅思祖 王伟 熊俊 贾果 方智恒 |
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| 作者单位： | 中国工程物理研究院 上海激光等离子体研究所， 上海 201800 |
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| 基金项目： | 国家高技术发展计划项目 |
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| 摘 要： | 利用激光驱动4.8 keV左右的Ti等离子体X射线源作为背光,通过静态成像实验研究了针孔辅助点投影诊断方法及其特点。进行了点投影技术动态诊断应用探索,建立了光子能量约4.8 keV、时间分辨力约100 ps、空间分辨约10μm的动态诊断实验平台。并简要介绍了此诊断平台上开展的流体力学不稳定性研究、激光加速射流、材料预压缩特性研究等一系列实验结果。
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| 关 键 词： | 高能量密度物理 诊断技术 点投影 X射线照相 |
| 收稿时间： | 1900-01-01; |
Applications of point-projection radiography to high energy density physics experiments |
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| Dong Jiaqin,Fu Sizu,Wang Wei,Xiong Jun,Jia Guo,Fang Zhiheng.Applications of point-projection radiography to high energy density physics experiments[J].High Power Laser and Particle Beams,2010,22(10). |
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| Authors: | Dong Jiaqin Fu Sizu Wang Wei Xiong Jun Jia Guo Fang Zhiheng |
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| Institution: | Shanghai Institute of Laser Plasma, CAEP, P. O. Box 800-229, Shanghai 201800, China |
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| Abstract: | The principles and characteristics of point-projection radiography were studied through static imaging experiments, using laser-driven about 4.8 keV Ti plasma X-ray source. The application of point-projection to dynamic diagnosis was then developed, and an experimental platform was accomplished with about 4.8 keV photon energy, about 100 ps time resolution and about 10 μm spatial resolution. A series of experimental results from this platform were introduced, including those on hydrodynamic instability, laser-accelerated plasma jet and compression characters of materials. |
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| Keywords: | diagnostics point X-ray source radiography |
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