EXPLORE ESRF BEAMLINES - BM20/ROBL CRG Beamline - Multimethod Beamline for Actinide Research - Sami Juhani VASALA

ABSTRACT

BM20, the Rossendorf Beamline (ROBL), is a Collaborating Research Group beamline operated by Helmholtz-Zentrum Dresden-Rossendorf (HZDR) at the ESRF. ROBL is a multimethod beamline specialized in research on actinides and other elements with no stable isotopes (Tc, Po, Ra), with the required protections and protocols for handling radioactive materials. However, the beamline is not limited to those materials, and the accessible energy range of 2.7-35 keV allows us to measure most of the elements in the periodic table. The beamline hosts four experimental stations: a XAFS station with fluorescence and transmission detection for X-ray absorption fine-structure (XAFS) spectroscopy, including (conventional) X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine-structure (EXAFS) spectroscopies; a XES station with a spectrometer for high-energy-resolution fluorescence-detection X-ray absorption near-edge spectroscopy (HERFD-XANES), X-ray emission spectroscopy (XES) and resonant inelastic X-ray scattering (RIXS) measurements; and two XRDs stations, one with a six-circle goniometer for high-resolution powder X-ray diffraction (PXRD), surface-sensitive crystal truncation rod (CTR) and resonant anomalous X-ray reflectivity (RAXR) measurements, and another station for single crystal X-ray diffraction (SCXRD) and in situ/in operando PXRD measurements.