全光汤姆逊散射X光源数值模拟  

Numerical simulation of full-optical Thomson scattering X-ray source

作　　者：谭放[1] 朱斌[1] 赵宗清[1] 曹磊峰[1] 谷渝秋[1] 张保汉[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2011年第5期1233-1238,共6页High Power Laser and Particle Beams

基　　金：中国工程物理研究院重点基金项目(2009A0102003);国家高技术发展计划项目

摘　　要：使用蒙特卡罗数值模拟程序研究了不同电子束和激光强度下,尾场电子束与超短脉冲激光发生汤姆逊散射获得的X光子能谱、角分布等,初步探索了180°散射下高质量X射线光源所需要的电子束与激光强度。数值模拟结果显示,为了尽量提高光子产额并抑制非线性效应,激光归一化强度应为1的量级。为了获得方向性和单色性好、亮度高的X射线脉冲,需要较高的电子能量和较小的电子能散,电子束脉冲尽量短,且发散角尽量小。The energy spectra and angle-distribution of the X-ray photons produced through 180°Thomson scattering were studied by Monte Carlo numerical simulation code CAIN.The laser intensity and electron parameters required for high quality X-ray source were also explored.Results show that to get higher photon production and suppress the nonlinear scattering,the laser intensity should not be too high.To get a monochromatic and highly luminous X-ray source,the electrons should have quasi-monoenergetic energy distributions,high energy,small divergence and short pulse length.

关 键 词：超短超强激光 尾波场加速 汤姆逊散射 X光源 

分 类 号：TN248[电子电信—物理电子学]