摘要
描述了光学渡越辐射用于束流诊断的理论依据,介绍了利用光学渡越辐射对18MeV,2.7kA的强流脉冲电子束进行诊断的实验方案。在解决了在强流束测量中强背景干扰等问题后,获得了光学渡越辐射的特征图案,据此测量了强流脉冲束的剖面、能量、发散角和发射度。初步的实验结果表明,光学渡越辐射方法是强流束诊断的一种有效手段。
In this paper, the basic theory of optical transition radiation(OTR) is described. The schemes of experiments on an electron beam of 18MeV, 2.7kA using OTR are presented. In the diagnostics of such an intense beam, some difficulties including strong visible light and X-ray background interference and so on, have been solved. The characteristic pattern of OTR is obtained. With OTR method, the beam profile, energy, divergence and emittence were measured. The preliminary results show that OTR method is an effective way for intense beam diagnostics.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2004年第9期1215-1218,共4页
High Power Laser and Particle Beams
基金
国防科技基础研究基金资助课题
关键词
光学渡越辐射
束流诊断
直线感应加速器
束剖面
发射度
Optical transition radiation
Beam diagnostics
Linear induction accelerator
Beam profile
Emittance
