摘要
报告了北京自由电子激光器(BFEL)从30MeV直线加速器出口到摇摆磁铁出口束流输运段的束流截面监测系统。该系统由四台遥控气动可伸缩荧光屏探头、光学放大系统、闭路电视摄象系统及视频图象处理系统组成。利用该系统进行模拟实验,其系统空间分辨率约100μm,达到BFEL总体要求。利用该系统可以测量摇摆磁铁入口处及内部电子束和准直激光的截面、位置和畸变,进行束流准直、聚焦和发射度测量。
The electron beam profile monitoring system located between exit of the 30 MeV linac a d exit of the undulator on Beijing free electron laser (BFEL) is described. The system consists of four sets of fluorescent screen probes controlled remotely by a pneumatic actuator, an optical magnifying system, a TV-camera monitoring station, and a TV signal digitizing system. According to the result of simulation experiment, the spatial resolution of the system is approximately 0.lmm that meets the overall requirement of BFEL. The profile, position and distortion of the electron beam and alignment of the laser beam along the undulator can be tested and measured with this system.
出处
《强激光与粒子束》
EI
CAS
CSCD
1991年第2期173-178,共6页
High Power Laser and Particle Beams
关键词
自由电子激光
电子束诊断
free electron laser, electron beam diagnostics, electron beam profile monitor.
