X射线背光成像的实现  

Realization of X-ray backlight imaging

作　　者：刘利锋[1] 肖沙里[2] 钱家渝[2] 

机构地区：[1]山西大同大学物理与电子科学学院,山西大同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：《应用光学》2017年第3期381-384,共4页Journal of Applied Optics

基　　金：国家自然科学基金(10976033)

摘　　要：为了实现对惯性约束聚变的诊断,获取聚爆过程中高温等离子体X射线能谱信息和内爆靶丸的二维空间分辨信息,利用晶体的布拉格衍射特性设计制作了球面晶体分析器,晶体弯曲半径为125mm。为了验证球面晶体的空间分辨能力,搭建了背光成像平台进行了背光成像实验,石英球面晶体为衍射核心元件,接收装置IP板得到了Cu靶的二维空间分辨信息,基于石英球面晶体的成像平台得到的空间分辨率约为100μm。In order to realize diagnosis of inertial confinement fusion （ICF）, high temperature plasma X-ray energy spectrum information and two-dimensional spatial resolution information of detonation target are obtained. Spherical crystal analyzer is fabricated by using Bragg diffraction property of crystal, with bent radius 125 mm. In order to verify spatial resolution of spherical crystal, a backlight imaging platform is designed for backlight imaging experiment. Quartz spherical crystal is diffractive core element, and IP plate of receiving device gets two-dimensional spatial resolution information of Cu target. Experimental results show that spatial resolution of imaging system based on spherically bent Quartz crystal is about 100 μm.

关 键 词：X射线光学 球面弯曲晶体 背光成像 空间分辨率 

分 类 号：TN201[电子电信—物理电子学] O433.1[机械工程—光学工程]