20-MW DESKTOP FREE-ELECTRON LASER AT THZ FREQUENCIES

摘要：

We numerically study the generation of periodically bunched electrons from a 6 MeV photocathode electron gun driven by a beat-wave laser with a beat frequency at THz frequencies. We then inject the electrons into a single-pass FEL undulator. Due to the prebunched electrons, the quick build-up of the FEL power can overcome the space-charge debunching force. With nominal beam parameters and an initial bunching factor of 0.2, the FEL can reach nearly 20-MW saturation power at 4 THz in a ~0.5 m distance in the wiggler. The length of this 20MW THz FEL, from the beginning of the electron gun to the end of the undulator, is less than a meter.

作者: Yen-Chieh Huang Cheng-Ying Tsai Chia-Hsian Chen Wai-Keung Lau Gwo-Huei Luo

作者单位: Department of Electrical Engineering,National Tsinghua University,Hsinch 30013,Taiwan;National Synch Department of Electrical Engineering,National Tsinghua University,Hsinch 30013,Taiwan National Synchrotron Radiation Research Centre,Hsinchu 30076,Taiwan

会议类型: 国际会议

会议名称: 17th International Conference on High-Power Particle Beams(第17届高功率离子束国际会议)

会议地点: 西安

会议语种:英文

页码: 239-241

在线出版日期: 2008-07-06（万方平台首次上网日期，不代表论文的发表时间）