Study on crystal bending performance of high energy Laue monochromator

Haiyun ZHANG; Wanqian ZHU; Hongliang QIN; Song XUE

doi:10.11889/j.0253-3219.2017.hjs.40.010101

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Study on crystal bending performance of high energy Laue monochromator

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS | 更新时间：2021-05-19

- Study on crystal bending performance of high energy Laue monochromator
- NUCLEAR TECHNIQUES Vol. 40, Issue 1, Article number: 010101(2017)
- 作者机构：
  
  1.中国科学院上海应用物理研究所张江园区上海 201204
  2.中国科学院大学北京 100049
- 作者简介：
- 基金信息：
  
  Supported by National Major Scientific Instruments and Equipment Development Projects;Young Scholars Development Cooperation Group of Shanghai Institute of Applied Physics, Chinese Academy of Sciences
- DOI：10.11889/j.0253-3219.2017.hjs.40.010101
  CLC： TL503.4
- Received：29 September 2016，
  
  Revised：13 November 2016，
  
  Published：2017-01
- 稿件说明：
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Haiyun ZHANG, Wanqian ZHU, Hongliang QIN, et al. Study on crystal bending performance of high energy Laue monochromator[J]. Nuclear techniques, 2017, 40(1): 010101
DOI：

Haiyun ZHANG, Wanqian ZHU, Hongliang QIN, et al. Study on crystal bending performance of high energy Laue monochromator[J]. Nuclear techniques, 2017, 40(1): 010101 DOI： 10.11889/j.0253-3219.2017.hjs.40.010101.

摘要

上海光源二期工程拟建的超硬多功能线站将采用一台弧矢聚焦高能劳厄单色器，晶体压弯机构是单色器的核心部件，晶体弧矢半径与子午半径的优化对单色器的光通量和分辨率有很大影响。本文利用有限元软件分析了影响劳厄晶体压弯性能的主要因素--斜切晶体的各向异性以及晶体的长宽比。通过分析，确定了硅晶体切割边为[011]方向和[0-11]方向，晶体的优化尺寸为90 mm×40 mm×1 mm。硅晶体表面的弧矢和子午面形误差（均方根）分别为3.02 μrad和1.25 μrad，满足设计要求。

Abstract

Background:

A water-cooled high energy double Laue crystal monochromator (DLM) will be employed on ultra-hard applications beamline to be built in phase II project at Shanghai Synchrotron Radiation Facility (SSRF). Its crystal bending performance is very important for satisfying design requirements.

Purpose:

This study aims to find appropriate coupled meridional and sagittal bending of the bender

to obtain optimal the monochromatic beam flux and energy resolution.

Methods:

The rigidity matrix of the crystal was calculated by using MATLAB. Two main factors

anisotropic elasticity of the asymmetric-cut crystal and aspect ratio

are considered to optimize the crystal bendings by finite element analysis (FEA) using ANSYS Workbench.

Results & Conclusion:

Analysis results show the cutting edge of crystal length and width goes along the[011] and[0-11]

direction

respectively. The optimized crystal geometry is 90 mm×40 mm×1 mm. Furthermore

the meridional and sagittal slope errors of the crystal are 3.02 μrad and 1.25 μrad

respectively

which meet the requirements well.

关键词

Keywords

references

Zhang L, Baker R, Barrett R, et al. Mirror profile optimization for nano-focusing KB mirror[C]. American Institute of Physics Conference Proceedings, Melbourne, Australia, 2010:801-804. DOI:10.1063/1.3463335 http://dx.doi.org/DOI:10.1063/1.3463335 .

M A Hopcroft , W D Nix , T W Kenny . What is the young's modulus of silicon? . Journal of Microelectro-mechanical Systems , 2010 . 19 ( 2 ): 229 - 238 . DOI: 10.1109/JMEMS.2009.2039697 http://doi.org/10.1109/JMEMS.2009.2039697 .

J J Wortman , R A Evans . Young's modulus, shear modulus, and poisson's ratio in silicon and germanium . Journal of Applied Physics , 1965 . 36 ( 1 ): 153 - 156 . DOI: 10.1063/1.1713863 http://doi.org/10.1063/1.1713863 .

L Zhang , R Barrett , P Cloetens , . Anisotropic elasticity of silicon and its application to the modelling of X-ray optics . Journal of Synchrotron Radiation , 2001 . 21 ( 3 ): 507 - 517 . DOI: 10.1107/S1600577514004962 http://doi.org/10.1107/S1600577514004962 .

Zhang L. Anisotropy and crystal orientation of silicon-application to the modeling of a bent mirror[C]. American Institute of Physics Conference Proceedings, Melbourne, Australia, 2010:797-800. DOI:10.1063/1.3463333 http://dx.doi.org/DOI:10.1063/1.3463333 .

Kaajakari V. Silicon as an anisotropic mechanical material-a tutorial[EB/OL]. 2003-4-2[2016-7-20] . http://kaajakari.net/~ville/research/tutorials/elasticity_tutorial.pdf http://kaajakari.net/~ville/research/tutorials/elasticity_tutorial.pdf .

X B Shi , S Ghose , Z Zhong , . Surface curvatures and diffraction profiles of sagittaly bent Laue crystals . Journal of Applied Crystallography , 2011 . 44 ( 4 ): 665 - 671 . DOI: 10.1107/S0021889811018711 http://doi.org/10.1107/S0021889811018711 .

M Krisch . Study of dynamically bent crystals for X-ray focusing optics . Nuclear Instruments and Methods in Physics Research , 1991 . 305 ( 1 ): 378 - 381 . DOI: 10.1016/0168-9002(91)90536-Y http://doi.org/10.1016/0168-9002(91)90536-Y .

余盛辉 , 薛松 , 祝万钱 , . 弧矢压弯晶面扭曲问题研究 . 核技术 , 2013 . 36 ( 7 ): 070101 DOI: 10.11889/j.0253-3219.2013.hjs.36.070101 http://doi.org/10.11889/j.0253-3219.2013.hjs.36.070101 .

Shenghui YU , Song XUE , Wanqian ZHU , . Study on twist problem of sagittally bent crystal . Nuclear Techniques , 2013 . 36 ( 7 ): 070101 DOI: 10.11889/j.0253-3219.2013.hjs.36.070101 http://doi.org/10.11889/j.0253-3219.2013.hjs.36.070101 .

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