双晶单色仪第一晶体初安装姿态误差分析  

Analysis of the first crystal Attitude error in a double-crystal monochromator

作　　者：曹冲振[1] 王凤芹[1] 张明辉[1] 李玉善[1] 赵春雨[1] 

机构地区：[1]山东科技大学机械电子工程学院,青岛266510

出　　处：《核技术》2009年第9期657-661,共5页Nuclear Techniques

摘　　要：双晶单色仪是同步辐射光束线中关键的光学部件,第一晶体的初安装姿态误差对双晶单色仪出射光方向影响复杂。通过建立同步辐射在第一晶体晶面上衍射的空间模型,得到了第一晶体的初安装姿态误差对出射光方向的影响关系式,并通过测定不同Bragg角时在荧光靶上的光斑的位置,得到确定第一晶体初安装投角、滚角、摆角误差的方法,可为第一晶体姿态调节装置提供数据。A double-crystal monochromator is a key optical part of synchrotron radiation beamlines, and the effect of the first crystal attitude error on exit beam direction is complex. In this paper, a spatial diffraction model of synchrotron radiation on the face of the first crystal was established. The effect of the first crystal attitude error on the exit beam direction was obtained. At different Bragg angles, the position of facula in a fluorescent target was measured, and the pitch, roll and yaw errors was derived. The method has been applied in adjusting the first crystal attitude mechanism.

关 键 词：同步辐射 双晶单色仪 第一晶体 姿态误差 

分 类 号：TL544[核科学技术—核技术及应用]