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Extending the photon energy coverage of an x-ray self-seeding FEL via the reverse taper enhanced harmonic generation technique
Zhang, KQ; Qi, Z; Feng, C; Deng, HX; Wang, D; Zhao, ZT
2017
Source PublicationNUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN0168-9002
Volume854Pages:3-10
Subtype期刊论文
AbstractIn this paper, a simple method is proposed to extend the photon energy range of a soft x-ray self-seeding free-electron laser (FEL). A normal monochromator is first applied to purify the FEL spectrum and provide a coherent seeding signal. This coherent signal then interacts with the electron beam in the following reverse tapered undulator section to generate strong coherent microbunchings while maintain the good quality of the electron beam. After that, the pre-bunched electron beam is sent into the third undulator section which resonates at a target high harmonic of the seed to amplify the coherent radiation at shorter wavelength. Three dimensional simulations have been performed and the results demonstrate that the photon energy gap between 1.5 keV and 4.5 keV of the self-seeding scheme can be fully covered and 100 GW-level peak power can be achieved by using the proposed technique.
KeywordSelf-seeding Reverse Taper Harmonic Generation
DOI10.1016/j.nima.2017.02.039
Indexed BySCI
Language英语
WOS IDWOS:000398869100002
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/27320
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Zhang, KQ,Qi, Z,Feng, C,et al. Extending the photon energy coverage of an x-ray self-seeding FEL via the reverse taper enhanced harmonic generation technique[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2017,854:3-10.
APA Zhang, KQ,Qi, Z,Feng, C,Deng, HX,Wang, D,&Zhao, ZT.(2017).Extending the photon energy coverage of an x-ray self-seeding FEL via the reverse taper enhanced harmonic generation technique.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,854,3-10.
MLA Zhang, KQ,et al."Extending the photon energy coverage of an x-ray self-seeding FEL via the reverse taper enhanced harmonic generation technique".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 854(2017):3-10.
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