Wakefield issue and its impact on X-ray photon pulse in the SXFEL test facility
Song, MH; Li, K; Feng, C; Deng, HX; Liu, B; Wang, D; Deng, HX (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
2016
发表期刊NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN0168-9002
卷号822期号:-页码:71—76
文章类型期刊文献
摘要Besides the designed beam acceleration, the energy of electrons changed by the longitudinal wakefields in a real free-electron laser (FEL) facility, which may degrade FEL performances from the theoretical expectation. In this paper, with the help of simulation codes, the wakefields induced beam energy loss in the sophisticated undulator section is calculated for Shanghai soft X-ray FEL, which is a two-stage seeded FEL test facility. While the 1st stage 44 nm FEL output is almost not affected by the wakefields, it is found that a beam energy loss about 0.8 MeV degrades the peak brightness of the 2nd stage 8.8 nm FEL by a factor of 1.6, which however can be compensated by a magnetic field fine tuning of each undulator segment. And the longitudinal coherence of the 8.8 nm FEL output illustrates a slight degradation, because of the beam energy curvatures induced by the wakefields. (C) 2016 Elsevier B.V. All rights reserved.
关键词Free-electron Laser Generation Region
DOI10.1016/j.nima.2016.03.089
收录类别SCI
语种英语
WOS记录号WOS:000374660900010
引用统计
被引频次:1[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/331007/25891
专题中科院上海应用物理研究所2011-2018年
通讯作者Deng, HX (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
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GB/T 7714
Song, MH,Li, K,Feng, C,et al. Wakefield issue and its impact on X-ray photon pulse in the SXFEL test facility[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2016,822(-):71—76.
APA Song, MH.,Li, K.,Feng, C.,Deng, HX.,Liu, B.,...&Deng, HX .(2016).Wakefield issue and its impact on X-ray photon pulse in the SXFEL test facility.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,822(-),71—76.
MLA Song, MH,et al."Wakefield issue and its impact on X-ray photon pulse in the SXFEL test facility".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 822.-(2016):71—76.
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