High-Energy Resolution Fluorescence Detected X-ray Absorption Spectroscopy

Beamline 15-2 is a state-of-the-art undulator experimental station specializing in advanced hard x-ray spectroscopy. The end station features cutting-edge instrumentation, including a 7-crystal Johann spectrometer and an 8-crystal von Hamos instrument for sub-core hole lifetime resolution x-ray emission spectroscopy. It also houses high-throughput and high-energy-resolution x-ray Raman spectrometers with resolutions of 0.3 eV, optimized for both low-q (40-crystal) and high-q (30-crystal) scattering geometries.

Beamline 6-2a is a Wiggler radiation-based versatile experimental station designed for high-energy-resolution spectroscopy in the tender X-ray range (1.6–5.0 keV). The station features a Johansson-type x-ray spectrometer operating on a Rowland geometry with cylindrical Johansson analyzers, enabling sub-natural linewidth energy resolution (~0.32 eV at 2400 eV). This apparatus provides to the SSRL Users the unique capability of performing advanced spectroscopy (XES/HERFD-XAS/RIXS) studies for elements such as S, Cl, 4d metals, and 5f actinides.