Analysis of the transmission efficiency of a two-channel elliptical crystal spectrometer

XIONG Xian-cai; ZHONG Xian-xin; XIAO Sha-li; DUAN Shao-guang; GAO Jie; YANG Guo-hong

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Analysis of the transmission efficiency of a two-channel elliptical crystal spectrometer

更新时间：2020-08-12

- Analysis of the transmission efficiency of a two-channel elliptical crystal spectrometer
- Optics and Precision Engineering Vol. 10, Issue 6, Pages: 592-596(2002)
- 作者机构：
  
  1. 重庆大学, 光电技术及系统教育部重点实验室重庆,400044
  2. 中国工程物理研究院, 四川, 绵阳, 621900
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH744.15
- Received：09 April 2002，
  
  Revised：24 July 2002，
  
  Published Online：15 December 2002，
  
  Published：15 December 2002
- 稿件说明：
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熊先才, 钟先信, 肖沙里, 段绍光, 高洁, 杨国洪. 双通道椭圆弯晶谱仪的传递效率分析[J]. 光学精密工程, 2002,(6): 592-596

XIONG Xian-cai, ZHONG Xian-xin, XIAO Sha-li, DUAN Shao-guang, GAO Jie, YANG Guo-hong. Analysis of the transmission efficiency of a two-channel elliptical crystal spectrometer[J]. Editorial Office of Optics and Precision Engineering, 2002,(6): 592-596
熊先才, 钟先信, 肖沙里, 段绍光, 高洁, 杨国洪. 双通道椭圆弯晶谱仪的传递效率分析[J]. 光学精密工程, 2002,(6): 592-596 DOI：

XIONG Xian-cai, ZHONG Xian-xin, XIAO Sha-li, DUAN Shao-guang, GAO Jie, YANG Guo-hong. Analysis of the transmission efficiency of a two-channel elliptical crystal spectrometer[J]. Editorial Office of Optics and Precision Engineering, 2002,(6): 592-596 DOI：

摘要

双通道椭圆弯晶谱仪(以下简称TCECS)是激光惯性约束核聚变(ICF)研究中非常重要的诊断仪器

在一个通道上用Χ光胶片或X-CCD作空间分辨测量

在另一个通道上用Χ光条纹相机作时间分辨测量

从而同时获得Χ射线的空间和时间特性.TCECS传递效率的高低将影响摄谱效果

而TCECS的传递效率取决于柱面镜的反射率、晶体的积分衍射率、滤光膜的透射率和光谱相对孔径.本文从理论上分析了TCECS传递效率的四种影响因素与波长的关系

并用Matlab 6.1软件进行了数值计算

表明TCECS的传递效率随Χ射线波长增大而减小

这对今后TCECS的结构设计具有重要的指导作用.

Abstract

The two-channel elliptical crystal spectrometer (TCECS) is a very important diagnostic instrument for researching inertial confinement fusion controlled by laser. Since spatial resolution is recorded by X-film or X-CCD in one channel

and time resolution is recorded by an X-streak camera in another channel

the spatial and time characteristics can be measured simultaneously. Spectrographic effects will be affected by the transmission efficiency of TCECS

which depends on the reflective ratio of a cylindrical mirror

the integrated diffraction of a crystal

the transmissivity of filter foil

and the spectrographic aperture ratio. The relations between these four influencing factors and wavelength are analyzed theoretically in this paper. The numerical calculations are done by using Matlab 6.1 software. It is indicated that transmission efficiency decreases as X-ray wavelength increases

which is very important to instruct the structural design.

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references

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王峰,徐朝银,潘国强,等.同步辐X射线双晶单色仪能量扫描[J].光学精密工程,2001,9(4):401-404.

金春水,王占山,曹健林.软X射线投影光刻原理装置的设计[J]. 光学精密工程,2001,9(4):66-70.

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