A novel electrostatic electron analyzer for hard x-ray photoelectron spectroscopy (up to 15 keV)

At the Spanish CRG beamline (SpLine) located at the European Synchrotron Radiation Facility (ESRF) we have developed a complex experimental set-up dedicated to the combination of X-Ray Diffraction (XRD) and Hard X-ray Photoelectron Spectroscopy (HAXPES). For that we have developed a novel high energy electron analyzer that fulfills the requirements imposed by both techniques. The analyzer is a cylinder sector analyzer (CSA300HV) designed to operate at energies between few eV and up to 15 keV. Since one year, it is operated routinely up to 15 keV electron kinetic energy. In this work we present a detailed description of the developed electron analyzer together with the experimental determination of its intrinsic properties in terms of transmission, energy resolution and kinetic energy range achievable.