CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
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
Source PublicationNEW JOURNAL OF PHYSICS
ISSN1367-2630
Volume17Pages:
Subtype期刊文献
AbstractThe 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.
KeywordFree-electron Laser Operation
Language英语
WOS IDWOS:000359135100001
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Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25059
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorFeng, C (reprint author), Shanghai Inst Appl Phys, 2019 Jialuo Rd Jiading, Shanghai 201800, Peoples R China.
Recommended Citation
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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