The qRIXS Instrument at the Linac Coherent Light Source
ORAL
Abstract
The completion of the LCLS-II upgrade at the Linac Coherent Light Source (LCLS) in 2023 has enabled the generation of X-ray free-electron laser pulses with unprecedented brilliance and repetition rates up to one megahertz [1]. This transformative upgrade is expected to significantly advance a wide range of materials science fields, including quantum materials, battery science, microelectronics, and quantum information sciences [2]. The qRIXS instrument, a flagship tool for LCLS-II, is specifically designed and constructed for materials science research using Resonant Inelastic X-ray Scattering (RIXS) spectroscopy, a technique with an inherently small scattering cross section. qRIXS is capable of conducting time-resolved RIXS experiments efficiently with femtosecond time resolution and delivering energy-resolved data with a resolving power greater than 10,000, while simultaneously providing momentum-resolved information. In this presentation, I will discuss the scientific motivations driving the development of qRIXS and report performance metrics obtained during the commissioning experiments.
–
Publication: [1] K. Bourzac, Nature 621, 666 (2023); https://doi.org/10.1038/d41586-023-02874-1<br>[2] M. Dunne, Proc. SPIE PC12581, X-Ray Free-Electron Lasers: Advances in Source Development and Instrumentation VI, PC1258101 (2023); https://doi.org/10.1117/12.2669591
