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| Reversible beam heater for suppression of microbunching instability by transverse gradient undulators | |
| Liu, T; Qin, WL; Wang, D; Huang, ZR | |
| 2017 | |
| Source Publication | PHYSICAL REVIEW ACCELERATORS AND BEAMS
 |
| ISSN | 2469-9888 |
| Volume | 20Issue:8Pages:- |
| Subtype | 期刊论文 |
| Abstract | The 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. |
| Keyword | Free-electron Laser Radiation Operation |
| DOI | 10.1103/PhysRevAccelBeams.20.082801 |
| Indexed By | SCI |
| WOS Keyword | FREE-ELECTRON LASER ; RADIATION ; OPERATION |
| Language | 英语 |
| WOS ID | WOS:000406919900001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/28804 |
| Collection | 中科院上海应用物理研究所2011-2020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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| File Name/Size | DocType | Version | Access | License | ||
| Reversible beam heat（1046KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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