Experimental setup for high-resolution characterization of crystal optics for coherent X-ray beam applications

Aliaksei Halavanau; Rachel Margraf; River Robles; James MacArthur; Zhengxian Qu; Gabriel Marcus; Juhao Wu; Takahiro Sato; Diling Zhu; Christopher J Takacs; Ross Arthur; Olga Kraynis; Bart Johnson; Thomas Rabedeau

doi:10.1107/S1600576722010998

Experimental setup for high-resolution characterization of crystal optics for coherent X-ray beam applications

J Appl Crystallogr. 2023 Feb 1;56(Pt 1):155-159. doi: 10.1107/S1600576722010998.

Authors

Affiliations

¹ SLAC National Accelerator Laboratory, Stanford University, Menlo Park, CA 94025, USA.
² Stanford University, Menlo Park, CA 94025, USA.

Abstract

Stanford Synchrotron Radiation Lightsource serves a wide scientific community with its variety of X-ray capabilities. Recently, a wiggler X-ray source located at beamline 10-2 has been employed to perform high-resolution rocking curve imaging (RCI) of diamond and silicon crystals. X-ray RCI is invaluable for the development of upcoming cavity-based X-ray sources at SLAC, including the cavity-based X-ray free-electron laser and X-ray laser oscillator. In this paper, the RCI apparatus is described and experimental results are provided to validate its design. Future improvements of the setup are also discussed.

Keywords: Bragg crystals; Darwin width; cavity-based X-ray sources; rocking curve imaging.

Grants and funding

Funding for this research was provided by the US Department of Energy (contract No. DE-AC02-76SF00515).