摘要
描述了基于CCD摄像的同步辐射光束线光斑位置监测系统·在光束线运行中实时监测光斑与入射狭缝的相对位置·已在国家同步辐射实验室多条光束线安装·对光斑位置及其角度监测的准确度分别达到10.53μm、2.3μrad,具有较高的灵敏度·在线监测到同步辐射光斑的垂直抖动0.37mm、扭转角度83μrad·说明此时电子束流不稳定,偏离了预计的轨道·同时,为同步辐射光束线的调试和电子束流的诊断提供了可靠的依据·
A CCD camera system monitoring the photon beam position in synchrotron radiation beam une was described. The system provides the photon beam position related to the entrance slit during beam line operation and maintenance. Several beam lines at National Synchrotron Radiation Laboratory have been equipped with it. 10.53 μm and 2.3 μrad resolutions of the position and angle were calibrated respectively. 0.37 mm vertical dithers of the photon beam center was detected, coinstantaneously, showing 8083 μrad angular deviations. Meanwhile, it offers the reliable basis for beam line testing and diagnosis of the synchrotron facility.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2006年第3期447-451,共5页
Acta Photonica Sinica
关键词
光斑位置监测
光束线
同步辐射
Photon beam position monitoring
Beam line
Synehrotron radiation
