强激光与粒子束, 2010, 22 (10): 2345, 网络出版: 2010-12-07
X射线点投影技术在高能量密度物理相关实验中的应用
Applications of point-projection radiography to high energy density physics experiments
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10 μm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。
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.
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): 2345. 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): 2345.