A new method to suppress high-order harmonics for a synchrotron radiation soft X-ray beamline  

作　　者：郭志英 邢海英 洪才浩 唐坤 韩勇 陈栋梁 赵屹东 

机构地区：[1]Institute of High Energy Physics, Chinese Academy of Sciences [2]School of Electronics and Information Engineering, Tianjin Polytechnic University

出　　处：《Chinese Physics C》2015年第4期97-99,共3页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11375227,61204008)

摘　　要：A feasible and convenient method is proposed to suppress higher-harmonics for a varied-line-spacing plane grating monochromator in the soft X-ray region. Related calculations and experiments demonstrate that decreasing the included angle slightly by changing the parameter of the exit arm length can significantly improve light purity. This method is suitable and has been used for experiments of detector calibration in beamline 4B7B at the Beijing Synchrotron Radiation Facility （BSRF）.A feasible and convenient method is proposed to suppress higher-harmonics for a varied-line-spacing plane grating monochromator in the soft X-ray region. Related calculations and experiments demonstrate that decreasing the included angle slightly by changing the parameter of the exit arm length can significantly improve light purity. This method is suitable and has been used for experiments of detector calibration in beamline 4B7B at the Beijing Synchrotron Radiation Facility （BSRF）.

关 键 词：soft X-ray high-order harmonics detector calibration Monk-Gillieson monochromator SYNCHROTRONRADIATION 

分 类 号：O434.1[机械工程—光学工程]