CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
Reversible beam heater for suppression of microbunching instability by transverse gradient undulators
Liu, T; Qin, WL; Wang, D; Huang, ZR
2017
Source PublicationPHYSICAL REVIEW ACCELERATORS AND BEAMS
ISSN2469-9888
Volume20Issue:8Pages:-
Subtype期刊论文
AbstractThe microbunching instability driven by beam collective effects in a linear accelerator of a free-electron laser (FEL) facility significantly degrades the electron beam quality and FEL performance. A conventional method to suppress this instability is to introduce an additional uncorrelated energy spread by laser-electron interaction, which has been successfully operated in the Linac Coherent Light Source and Fermi@Elettra, etc. Some other ideas are recently proposed to suppress the instability without increasing energy spread, which could benefit the seeded FEL schemes. In this paper, we propose a reversible electron beam heater using two transverse gradient undulators to suppress the microbunching instability. This scheme introduces both an energy spread increase and a transverse-to-longitudinal phase space coupling, which suppress the microbunching instabilities driven by both longitudinal space charge and coherent synchrotron radiation before and within the system. Finally the induced energy spread increase and emittance growth are reversed. Theoretical analysis and numerical simulations are presented to verify the feasibility of the scheme and indicate the capability to improve the seeded FEL radiation performance.
KeywordFree-electron Laser Radiation Operation
DOI10.1103/PhysRevAccelBeams.20.082801
WOS KeywordFREE-ELECTRON LASER ; RADIATION ; OPERATION
Indexed BySCI
Language英语
WOS IDWOS:000406919900001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28804
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Liu, T,Qin, WL,Wang, D,et al. Reversible beam heater for suppression of microbunching instability by transverse gradient undulators[J]. PHYSICAL REVIEW ACCELERATORS AND BEAMS,2017,20(8):-.
APA Liu, T,Qin, WL,Wang, D,&Huang, ZR.(2017).Reversible beam heater for suppression of microbunching instability by transverse gradient undulators.PHYSICAL REVIEW ACCELERATORS AND BEAMS,20(8),-.
MLA Liu, T,et al."Reversible beam heater for suppression of microbunching instability by transverse gradient undulators".PHYSICAL REVIEW ACCELERATORS AND BEAMS 20.8(2017):-.
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