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physics.acc-ph2024
Flexible multi-bunch-length operation for continuous-wave x-ray free-electron lasers
Zihan Zhu, Jiawei Yan, Hanxiang Yang +4
The X-ray free-electron lasers (XFELs) are cutting-edge instruments pivotal in a broad range of fields, providing high-power X-ray pulses with durations spanning from femtoseconds…
physics.acc-ph2022
Two-color operation of a soft x-ray FEL with alternation of undulator tunes
E. A. Schneidmiller, I. J. Bermudez Macias, M. Beye +13
FLASH is the first soft X-ray FEL user facility, routinely providing brilliant photon beams for users since 2005. The second undulator branch of this facility, FLASH2, is gap-tunab…
physics.acc-ph2022
RF regulation with superconducting cavities and beam operation using a frequency shifted cavity
Sven Pfeiffer, Valeri Ayvazyan, Julien Branlard +11
The free-electron laser FLASH at DESY and the European XFEL are operated with superconducting radio frequency cavities and supply beam to several user experiments. The switching ti…