摘要
本文介绍了同步辐射 (SR)光束 5～ 2 5 Ke V弧矢聚焦双晶单色仪的单色化及聚焦原理 ,即以 Bragg定律为基础 ,改变 Bragg角θ,获得所需的波长λ实现光束的单色化 ;根据 Bragg角θ和压弯晶体的弧矢半径 ,R之间的关系 ,使单色光束通过压弯晶体改变方向实现单色光聚焦。文中并说明了基于柔性铰链的压弯晶体的压弯原理、压弯晶体鞍形变的抑制。
This paper briefly introduces the sagittal focusing and monochromic principle about the beam between 5～265 KeV?Sagittal focusing monochromic principle about beam is based on Bragg law (2dsinθ=nλ),and the monochromic beam is abtained by changing Bragg angle θ.According to the relation between the θ and the sagittal focusing radius R,the monochromator makes the monochromic and sagittal focusing beam realize.And explains the principle about crystal bending based on flexible hinge,the control about anticlastic distortion,the structure ensuring the fixing height between the input,and output beam and the result on the finite element model about the surface of bending crystal.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2001年第12期1230-1233,共4页
Journal of Optoelectronics·Laser
关键词
弧矢聚焦
单色化
同步辐射
光束
光源
sagittal focusing
monochromic
anticlastic distortion
synchrotron radiation (SR)
