Abstract
LISA (Linea Italiana per la Spettroscopia di Assorbimento di raggi X) is the new Italian Collaborating Research Group (CRG) beamline at the European Synchrotron Radiation Facility (ESRF) dedicated to X-ray absorption spectroscopy (XAS). The beamline covers a wide energy range, 4 < E < 90 keV, which offers the possibility for probe the K and L edges of elements that are heavier than Ca. A liquid He/N2 cryostat and a compact furnace are available for measurements in a wide temperature range (10–1000 K), allowing for in situ chemical treatments and measurements under a controlled atmosphere. The sub-millimetric beam size, the high photon flux provided, and the X-ray fluorescence detectors available (HP-Ge, SDD) allow for the study of liquid and highly diluted samples. Trace elements in geological or environmental samples can be analyzed, even for very small sample areas, gaining information on oxidation states and host phases.
Highlights
LISA (Linea Italiana per la Spettroscopia di Assorbimento di raggi X) [1,2], the new Italian beamline at the European Synchrotron Radiation Facility (ESRF), is the result of the refurbishment of the former GILDA (General purpose Italian beam Line for Diffraction and Absorption) [3], and it has been open to users since April 2018
We report some recent research performed at LISA, the new beamline andonthe work done at the beamline overpointing the lastoutfew yearsbeamline in the possibilities and the work done at the beamline over the last few years in the environmental sciences
LISA and the former GILDA have allowed for a broad range of Earth and environmental issues to be addressed recently
Summary
LISA (Linea Italiana per la Spettroscopia di Assorbimento di raggi X) [1,2], the new Italian beamline at the European Synchrotron Radiation Facility (ESRF), is the result of the refurbishment of the former GILDA (General purpose Italian beam Line for Diffraction and Absorption) [3], and it has been open to users since April 2018. The DCM contains two crystal pairs: Si(311) for experiments needing high energy resolution, and Si(111) for experiments needing high photon flux. The small spot size and the beam stability during energy scans [2] (beam movement
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have