信息与电子工程2011，Vol.9Issue(3)：361-364,4.
光阴极注入器驱动的FEL-THz装置
FEL-THz facility driven by a photo-cathode injector
摘要
Abstract
Since the first lasing in March 2005 in CAEP, the FEL-THz facility has been updated, the former thermionic cathode injector has been replaced by a high brightness photo-cathode injector. The facility mainly consists of a 4.5 cells photo-cathode RF-gun injector, a hybrid undulator and the optical oscillator cavity. The parameters are as followed: number of undulator periods:44; the peak value of the undulator:0.49 T; the good aperture:6 mm; the cathode material:Cs2Te; the quadruple light was used; the width of the driving laser:12 ps; the quantum efficiency:about 1%. The commissioning of the injector has been finished; the electron energy of the injector has been measured and it is about 8 MeV with the energy spread about 1%, and the electron beam normalized emittance about 9 πmm.mrad. The charge is about 100 pC and up to InC per micro-pulse, the repetition rate is 54.167 MHz. The calculated wavelength of the light is about 125 micron. At present, the spontaneous emission experiment is undertaking.关键词
Free Electron Laser/terahertz/acceleratorKey words
Free Electron Laser/terahertz/accelerator分类
信息技术与安全科学引用本文复制引用
杨兴繁,黎明,李为华,束小建..光阴极注入器驱动的FEL-THz装置[J].信息与电子工程,2011,9(3):361-364,4.基金项目
This paper was adopted by FEL2009-Proceedings.Liverpool,UK （）
