The SGM3 beamline is designed to operate in the 12–150 eV photon energy range with a resolving power of around 15,000. This energy range is covered with three spherical gratings and by using the first to seventh harmonic of the undulator inserted in the ASTRID2 storage ring.
This beamline is combined with an end-station for angle-resolved photoemission (ARPES). The experimental station is equipped with three connected chambers allowing transfer in UHV between two preparation chambers and a measurement one.
The system is in particularly well suited for measurements of the electronic structure along arbitrary direction in k|| space, Fermi surface mapping, bulk bands mapping and studying the polarization dependence of photoemission features.