摘要
用于北京自由电子激光30MeV电子直线加速器的注入及输出束的截面监测系统,由可伸缩荧光屏束截面探头、摄象取样装置及图象采集卡和计算机处理系统构成。用此系统测量加速器注入(≤1.2MeV)和输出(≥20MeV)电子束的截面宽度、密度分布、发射度等参量。其硬件的空间分辨率好于110μm,束宽测量精度好于50μm。经加速器在线使用2年以上考验,性能可靠,得到了满意结果。
The beam profile measurement (BPM) system of 30 MeV linac in Beijing Free Electron LaserLaboratory (BFELL) is described. The BPM consists of remote control phosphor screen, four TV cam-eras. an image video signal processor and a computer system. The profile, position, emittance and dis-tribution of electron beam for injection and output of the linac have been measured with it. The spatialresolution of the system is approximately 0.1 mm. The precision of measurement of beam width isabout 0.05 mm that meets the requirement of BFEL. The system have been used on line over two yearsand have meeted the needs for test of BFEL.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1993年第2期157-161,共5页
Atomic Energy Science and Technology
关键词
加速器
束截面
荧光屏
测量系统
Accelerator
Beam profile
Phosphor screen
Image
