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.
*Use of the Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515.
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Publication: [1] K. Bourzac, Nature 621, 666 (2023); https://doi.org/10.1038/d41586-023-02874-1
[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
Presenters
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Lingjia Shen
- SLAC National Accelerator Laboratory