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Two-stage reflective self-seeding scheme for high-repetition-rate X-ray free-electron lasers

Zhou, Guanqun ; Qu, Zhengxian ; Ma, Yanbao ; Corbett, William J. ; Jiao, Yi ; Li, Haoyuan ; Qin, Weilun LU ; Raubenheimer, Tor O. ; Tsai, Cheng Ying and Wang, Jiuqing , et al. (2021) In Journal of Synchrotron Radiation 28. p.44-51
Abstract

X-ray free-electron lasers (XFELs) open a new era of X-ray based research by generating extremely intense X-ray flashes. To further improve the spectrum brightness, a self-seeding FEL scheme has been developed and demonstrated experimentally. As the next step, new-generation FELs with high repetition rates are being designed, built and commissioned around the world. A high repetition rate would significantly speed up the scientific research; however, alongside this improvement comes new challenges surrounding thermal management of the self-seeding monochromator. In this paper, a new configuration for self-seeding FELs is proposed, operated under a high repetition rate which can strongly suppress the thermal effects on the monochromator... (More)

X-ray free-electron lasers (XFELs) open a new era of X-ray based research by generating extremely intense X-ray flashes. To further improve the spectrum brightness, a self-seeding FEL scheme has been developed and demonstrated experimentally. As the next step, new-generation FELs with high repetition rates are being designed, built and commissioned around the world. A high repetition rate would significantly speed up the scientific research; however, alongside this improvement comes new challenges surrounding thermal management of the self-seeding monochromator. In this paper, a new configuration for self-seeding FELs is proposed, operated under a high repetition rate which can strongly suppress the thermal effects on the monochromator and provides a narrow-bandwidth FEL pulse. Three-dimension time-dependent simulations have been performed to demonstrate this idea. With this proposed configuration, high-repetition-rate XFEL facilities are able to generate narrow-bandwidth X-ray pulses without obvious thermal concern on the monochromators.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
crystal monochromator, high repetition rate, narrow bandwidth, self-seeding free-electron laser, thermomechanical effects
in
Journal of Synchrotron Radiation
volume
28
pages
8 pages
publisher
International Union of Crystallography
external identifiers
  • scopus:85099427477
  • pmid:33399551
ISSN
0909-0495
DOI
10.1107/S1600577520014824
language
English
LU publication?
yes
id
12821649-7164-4987-9f95-8d867784c2dd
date added to LUP
2022-02-22 16:30:49
date last changed
2024-08-08 16:02:59
@article{12821649-7164-4987-9f95-8d867784c2dd,
  abstract     = {{<p>X-ray free-electron lasers (XFELs) open a new era of X-ray based research by generating extremely intense X-ray flashes. To further improve the spectrum brightness, a self-seeding FEL scheme has been developed and demonstrated experimentally. As the next step, new-generation FELs with high repetition rates are being designed, built and commissioned around the world. A high repetition rate would significantly speed up the scientific research; however, alongside this improvement comes new challenges surrounding thermal management of the self-seeding monochromator. In this paper, a new configuration for self-seeding FELs is proposed, operated under a high repetition rate which can strongly suppress the thermal effects on the monochromator and provides a narrow-bandwidth FEL pulse. Three-dimension time-dependent simulations have been performed to demonstrate this idea. With this proposed configuration, high-repetition-rate XFEL facilities are able to generate narrow-bandwidth X-ray pulses without obvious thermal concern on the monochromators. </p>}},
  author       = {{Zhou, Guanqun and Qu, Zhengxian and Ma, Yanbao and Corbett, William J. and Jiao, Yi and Li, Haoyuan and Qin, Weilun and Raubenheimer, Tor O. and Tsai, Cheng Ying and Wang, Jiuqing and Yang, Chuan and Wu, Juhao}},
  issn         = {{0909-0495}},
  keywords     = {{crystal monochromator; high repetition rate; narrow bandwidth; self-seeding free-electron laser; thermomechanical effects}},
  language     = {{eng}},
  month        = {{01}},
  pages        = {{44--51}},
  publisher    = {{International Union of Crystallography}},
  series       = {{Journal of Synchrotron Radiation}},
  title        = {{Two-stage reflective self-seeding scheme for high-repetition-rate X-ray free-electron lasers}},
  url          = {{http://dx.doi.org/10.1107/S1600577520014824}},
  doi          = {{10.1107/S1600577520014824}},
  volume       = {{28}},
  year         = {{2021}},
}