期刊
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
卷 80, 期 8, 页码 684-692出版社
KOREAN PHYSICAL SOC
DOI: 10.1007/s40042-021-00359-w
关键词
X-ray free-electron laser; Timing stability; Brightness; Self-seeding; Polarization; Attosecond
资金
- National Research Foundation of Korea (NRF) - Ministry of Science and ICT of Korea [NRF-2021R1A2C3010748]
Since the start of user service operation in June 2017, PAL-XFEL has demonstrated excellent timing stability and unprecedented peak brightness, with the use of a self-seeding scheme to increase brightness. Plans for improvement include designing a second hard X-ray FEL line and implementing polarization tunability in the soft X-ray FEL line.
The PAL-XFEL has demonstrated excellent timing stability and unprecedented peak brightness since its start of user service operation in June 2017. The 18-fs timing stability in the XFEL allows excellent pump-probe time-resolved experiments with low timing jitter. A self-seeding scheme enables us to produce a higher peak brightness of the XFEL with a narrow bandwidth. The plans for improving the capability of the PAL-XFEL as a user facility have been studied. The 2nd hard X-ray FEL line was designed to double the hard X-ray user's beamtime, and polarization tunability will be implemented in the soft X-ray FEL line. It will allow more users to experience new science.
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