High-resolution Mo KαX-ray monochromatic backlight imaging using a toroidal crystal  

作　　者：司昊轩 单连强 杜慧瑶 蒋励 伊圣振 周维民 王占山 Haoxuan Si;Lianqiang Shan;Huiyao Du;Li Jiang;Shengzhen Yi;Weimin Zhou;Zhanshan Wang(Institute of Precision Optical Engineering,MOE Key Laboratory of Advanced Micro-Structured Materials,Shanghai Frontiers Science Center of Digital Optics,Shanghai Professional Technical Service Platform for Full-Spectrum and High-Performance Optical Thin Film Devices and Applications,School of Physics Science and Engineering,Tongji University,Shanghai 200092,China;Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900,China)

机构地区：[1]Institute of Precision Optical Engineering,MOE Key Laboratory of Advanced Micro-Structured Materials,Shanghai Frontiers Science Center of Digital Optics,Shanghai Professional Technical Service Platform for Full-Spectrum and High-Performance Optical Thin Film Devices and Applications,School of Physics Science and Engineering,Tongji University,Shanghai 200092,China [2]Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900,China

出　　处：《Chinese Optics Letters》2023年第10期114-118,共5页中国光学快报（英文版）

基　　金：supported by the National Key Research and Development Program of China(No.2019YFE03080200);the National Natural Science Foundation of China(Nos.11875202 and 11875048).

摘　　要：Curved crystal imaging is an important means of plasma diagnosis.Due to the short wavelengths of high-energy X rays and the fixed lattice constant of the spherical crystal,it is difficult to apply the spherical crystal in high-energy X-ray imaging.In this study,we have developed a high-energy,high-resolution X-ray imager based on a toroidal crystal that can effectively correct astigmatism.We prepared a Ge<511>toroidal crystal for backlighting Mo Kα1 characteristic lines(∼17.48 keV)and verified its high-resolution imaging ability in high-energy X-ray region,achieving a spatial resolution of 5–10μm in a field of view larger than 1.0 mm.

关 键 词：laser plasma diagnostics toroidal crystal monochromatic X-ray imaging 

分 类 号：O434.19[机械工程—光学工程] TP391.41[理学—光学]