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。
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.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2010年第10期2345-2348,共4页
High Power Laser and Particle Beams
基金
国家高技术发展计划项目
关键词
高能量密度物理
诊断技术
点投影
X射线照相
high energy density physics
diagnostics
point X-ray source
radiography
