Design of RF chopper system for improving beam quality in FEL injector with thermionic gun
Design of RF chopper system for improving beam quality in FEL injector with thermionic gun
复制标题
提高热电子枪 FEL 注入器光束质量的射频斩波系统设计
DOI:
10.1016/j.nima.2014.04.048
复制
发表时间:
2014-08
期刊:
影响因子:
--
通讯作者:
Zhang F.
中科院分区:
文献类型:
--
作者:
Chen Q.;Qin B.;Tan P.;Hu T.;Pei Y.;Zhang F.
For a linac-based Free Electron Laser (FEL), good beam quality largely contributes to the success of the final radiation. An imperfection confronted with the HUST THz-FEL facility is the long beam tail that emerges in the electron gun and exists through the whole beam line. This paper proposes to deploy a chopper system after the electron gun to truncate the beam tails before they enter into the linac. Physical dimensions of the chopper cavity are discussed in detail and we have developed and derived new analytical expressions applying to all frequencies for the optimal design. Also, technical issues of the cavity are considered. Beam dynamic simulation is performed to examine the truncation effect and the results show that more than 78% of the beam tail can be removed effectively, while preserving the emittance and energy spread in acceptable level.
登录
查看更多内容
DOI:
10.1109/pac.1989.73023
发表时间:
1989
期刊:
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology
影响因子:
--
作者:
J. Haimson;B. Mecklenburg
通讯作者:
J. Haimson;B. Mecklenburg
影响因子:
1.8
作者:
J. Haimson
通讯作者:
J. Haimson
影响因子:
1.8
作者:
M. Wilson;R. Cutler;D. Mohr;S. Penner;L. Young
通讯作者:
M. Wilson;R. Cutler;D. Mohr;S. Penner;L. Young
影响因子:
6.7
作者:
P. Sperr;W. Egger;G. Kögel;G. Dollinger;C. Hugenschmidt;R. Repper;C. Piochacz
通讯作者:
P. Sperr;W. Egger;G. Kögel;G. Dollinger;C. Hugenschmidt;R. Repper;C. Piochacz
DOI:
10.1016/s0168-9002(99)00946-8
发表时间:
2000-02
影响因子:
1.4
作者:
S. Fu;T. Kato
通讯作者:
S. Fu;T. Kato