Suppression of microbunching instability via a transverse gradient undulator
Feng, C; Huang, DZ; Deng, HX; Gu, Q; Zhao, ZT; Feng, C (reprint author), Shanghai Inst Appl Phys, 2019 Jialuo Rd Jiading, Shanghai 201800, Peoples R China.
2015
发表期刊NEW JOURNAL OF PHYSICS
ISSN1367-2630
卷号17页码:
文章类型期刊文献
摘要The microbunching instability in the linear accelerator (linac) of a free-electron laser facility has always been a problem that degrades the electron beam quality. In this paper, a quite simple and inexpensive technique is proposed to smooth the electron beam current profile to suppress the instability. By directly adding a short undulator with a transverse gradient field right after the injector to couple the transverse spread into the longitudinal direction, additional density mixing in the electron beam is introduced to smooth the current profile, which results in the reduction of the gain of the microbunching instability. The magnitude of the density mixing can be easily controlled by varying the strength of the undulator magnetic field. Theoretical analysis and numerical simulations demonstrate the capability of the proposed technique in the accelerator of an x-ray free-electron laser.
关键词Free-electron Laser Operation
语种英语
WOS记录号WOS:000359135100001
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25059
专题中科院上海应用物理研究所2011-2018年
通讯作者Feng, C (reprint author), Shanghai Inst Appl Phys, 2019 Jialuo Rd Jiading, Shanghai 201800, Peoples R China.
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GB/T 7714
Feng, C,Huang, DZ,Deng, HX,et al. Suppression of microbunching instability via a transverse gradient undulator[J]. NEW JOURNAL OF PHYSICS,2015,17:—.
APA Feng, C,Huang, DZ,Deng, HX,Gu, Q,Zhao, ZT,&Feng, C .(2015).Suppression of microbunching instability via a transverse gradient undulator.NEW JOURNAL OF PHYSICS,17,—.
MLA Feng, C,et al."Suppression of microbunching instability via a transverse gradient undulator".NEW JOURNAL OF PHYSICS 17(2015):—.
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