光学精密工程2017，Vol.25Issue(11)：2852-2858,7.DOI:10.3788/OPE.20172511.2852
球面弯晶成像的优化设计及实验测试
Optimum design and test experiments of spherically bent crystal imaging
摘要
Abstract
In order to achieve high spatial resolution and narrow spectral bandwidth imaging of laser plasma in updated SG-Ⅱ laser facility ,the relations of the imaging quality of spherically bent crystal with image distance ,Bragg angle and backlit size were discussed . First , spherically bent crystal imaging at diverse image distances ,Bragg angles and backlit sizes were studied with a ray tracing program X-LAB .Then ,a test experiment was carried out by using X-ray tube device .The results show that better two-dimension image could be obtained at the image distance of equal resolution of two dimensions ,and larger the Bragg angle is ,better the imaging is .Furthermore ,smaller size of backlit is also helpful to improve the imaging quality .The experiment result agrees well with the expectation ,a spatial resolution better than 14 μm in the image of the mesh . T he results obtained contribute to the optimization design of the spherically bent crystal imaging system and precision diagnosis of laser plasma .关键词
X射线成像/球面弯晶/光线追迹/单色成像/等离子体Key words
X-ray imaging/spherically bent crystal/ray tracing/monochromatic imaging/plasma分类
能源科技引用本文复制引用
张强强,魏来,杨祖华,陈勇,范全平,巫殷忠,曹磊峰..球面弯晶成像的优化设计及实验测试[J].光学精密工程,2017,25(11):2852-2858,7.基金项目
国家重点研发计划资助项目(No.2017YFA0206011) （No.2017YFA0206011）
科技部国家重大科学仪器设备开发专项资助项目(No.2012YQ120125) （No.2012YQ120125）
