龙虾眼型X射线成像系统设计与仿真  

Design and Simulation of Lobster-eye X-Ray Imaging System

作　　者：王新[1] 徐捷[1] 杨宝璐 穆宝忠[1] WANG Xin;XU Jie;YANG Baolu;MU Baozhong(School of Physics Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学物理科学与工程学院,上海200092

出　　处：《实验室研究与探索》2020年第10期101-105,125,共6页Research and Exploration In Laboratory

基　　金：同济大学研究生教育研究与改革项目(2018GH103)。

摘　　要：龙虾眼光学系统能够在高能X射线波段实现大视场、高集光效率成像,在天文、安检等领域具有重要的应用。围绕有限远物距、高集光效率的高能X射线成像需求,开展了Schmidt型龙虾眼成像系统的设计与仿真研究。构建了Schmidt型龙虾眼光学系统的设计与成像仿真模型,研究了放大倍率、焦距、光学元件厚度及间距等对系统集光效率的影响,分析了物像关系与像散的关联。在此基础上,设计了高集光效率、高分辨率的Schmidt型龙虾眼光学系统,通过实验检验了系统成像性能,为高性能X射线成像光学系统的研制提供了一种有效的方法。The lobster-eye objective can realize large field of view and high light collection efficiency imaging in the high energy X-ray waveband,and has important applications in the fields of astronomy and security inspection.The design and simulation of the lobster-eye imaging system with Schmidt type were carried out according to the requirements of finite distance and high collection efficiency.The design and imaging simulation model of Schmidt system was constructed.The effects of magnification,focal length,mirror thickness and spacing on the collection efficiency of the system were studied.The relationship between object-image and astigmatism was analyzed.And the Schmidt lobster-eye system with high collection efficiency and high resolution was designed and tested,which provides an effective design method for the research of high-performance X-ray imaging system.

关 键 词：龙虾眼 X射线成像 集光效率 视场 

分 类 号：O434.1[机械工程—光学工程]