摘要详情

ID / 提交时间

105 / 2022-07-03 19:05:17

标题

Research on the Properties of Optical Transition Radiation in HUST-FEL

关键字

Bunch length,FEL,Transition radiation,Angular distribution

主题及专题

Electrotechnical Theory and New Electromagnetic Technology > Other topics in electrotechnical technology

状态

终稿

作者

Chi Zhang / Huazhong University of Science and Technology；State Key Laboratory of Advanced Electromagnetic Engineering and Technology；Wuhan National High Magnetic Field Center

Guang Zeng / Huazhong University of Science and Technology；State Key Laboratory of Advanced Electromagnetic Engineering and Technology；Wuhan National High Magnetic Field Center

Yanqi Hu / Huazhong University of Science and Technology；State Key Laboratory of Advanced Electromagnetic Engineering and Technology；Wuhan National High Magnetic Field Center

Peishuai Tian / Huazhong University of Science and Technology；State Key Laboratory of Advanced Electromagnetic Engineering and Technology；Wuhan National High Magnetic Field Center

Yongqian Xiong / Huazhong University of Science and Technology；State Key Laboratory of Advanced Electromagnetic Engineering and Technology；Wuhan National High Magnetic Field Center

摘要

Bunch length is one of the key longitudinal parameters in beam diagnostics, a bunch length measurement system is urgently needed to monitor the variation of bunch length in HUST-FEL. Based on a thorough investigation, we propose a measurement system using streak camera based on the optical transition radiation (OTR). We discuss the classical theory of the transition radiation (TR) in HUST-FEL in detail, simulate the angular distribution of TR at different beam energies, and select the TR target material from the perspective of economy and practicability. Considering about the practical application, we also discuss the effects of finite size target and pre-wave zone of TR based on the Weizsäcker-Williams method of virtual photon.