Two-stage reflective self-seeding scheme for high-repetition-rate X-ray free-electron lasers
(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.
(Less)
- author
- organization
- publishing date
- 2021-01-01
- 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}}, }