Speaker
Description
We present initial results from the commissioning of the X-ray optics motion and photon diagnostics systems for the cavity-based X-ray free-electron laser (CBXFEL) project. The CBXFEL project aims to demonstrate key technologies required to realize future CBXFEL systems and facilities by using X-rays produced in the first seven hard X-ray undulator segments of the Linac Coherent Light Source. The CBXFEL X-ray optics positioning [1] and diagnostic components have now been been commissioned. This work discusses the performance of the X-ray optics [2] and different diagnostic elements [3] distributed throughout the X-ray cavity. Highlighted results include Bragg diffraction alignment procedure for the X-ray optics, characterization of the beam intensity and position, and joint operation of these subsystems to enable continuous photon transport over multiple round trips within the X-ray cavity.
[1] Deming Shu, et al. "Design of the nanopositioning and mechanical system for cavity-based X-ray free electron laser". J. Phys.: Conf. Ser. 2022 2380}012029. DOI: 10.1088/1742-6596/2380/1/012029
[2] Peifan Liu, et al. "X-ray optics for the cavity-based X-ray free-
electron laser”, Journal of Synchrotron Radiation, vol. 31,
no. 4, pp. 751–762, Jul. 2024. DOI: 10.1107/S1600577524003977
[3] Peifan Liu, et al. "X-ray diagnostics for the cavity-based x-ray free-electron laser project" Phys. Rev. Accel. Beams, 27 (2024) 110701
DOI: 10.1103/PhysRevAccelBeams.27.110701
Funding Agency
This work is supported by U.S. Department of Energy under Contract No. DE-AC02-76SF00515 and Contract No. DE-AC02-06CH11357.
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