基于球面晶体背光成像系统的性能模拟研究  

Performance simulation of backlight imaging system based on spherical crystal

作　　者：刘利锋[1] 肖沙里[2] 钱家渝[2] 

机构地区：[1]大同大学物理与电子科学学院,大同037009 [2]重庆大学光电技术及系统教育部重点实验室,重庆400030

出　　处：《激光技术》2017年第1期6-9,共4页Laser Technology

摘　　要：为了实现球面晶体背光成像、验证球面晶体背光成像系统性能,采用模拟软件SHADOW对该背光成像系统进行了模拟研究,并对实际成像过程中影响系统成像的探测器位置、背光源的大小等参量进行了模拟分析。结果表明,探测器位置的微小变化对成像系统的相对放大率影响较小;背光源越小,成像系统的空间分辨率越高。该成像系统具有很好的空间分辨率,系统性能稳定可靠。In order to realize the work of X-ray imaging system and testify the performance of the imaging system, the backlighting imaging system was studied by ray tracing simulation software SHADOW. By the simulation of system parameters （ detection position, the size of backlighting source） , the results show that the position of detection has a little influence on the relative magnification of the system. The spatial resolution of the X-ray imaging system is higher with the decrease of the size of backlighting source. The imaging system based on spherically bent crystal has high spatial resolution and better performance.

关 键 词：X射线光学 球面晶体 X射线成像 相对放大率 空间分辨率 

分 类 号：O434.1[机械工程—光学工程]