Description
The URANOS (Ultra Resolved ANgular phOtoelectron Spectroscopy) beamline is designed for studying the band structure of solids, primarily utilizing the angle-resolved photoelectron spectroscopy (ARPES) technique, which has been available to users for six years at the SOLARIS National Synchrotron Radiation Center [1]. The beamline brings together a group of users who use the highly monochromatic and spectrally pure photon beams in the range of 8 - 160 eV with fully controlled polarization throughout the available energy range.
The end station is equipped with a DA30L (SCIENTA) electron spectrometer with deflection mode and offers low temperatures (6-500K) of samples during measurements. In response to user demand and following trends in solid state physics research, work has begun on the installation of 3D VLEED spin detectors, i.e. two spin filters in orthogonal geometry. This enables the measurement of the complete dispersion relation E(kx,ky,kz) along with information on all spin components (Sx,Sy,Sz). Additionally, by using variable light polarization, it is possible to gather information about the orbital geometry. The spin detectors are now installed, and the initial system tests are currently underway.
Concurrently, in collaboration with PREVAC, a new 6-axis cryogenic manipulator is under construction for work at low temperatures (2.5-500K), and it will soon undergo preliminary cryogenic tests.
In addition to the extension of the end station, a mirror guiding low-energy radiation perpendicular to the beam axis has recently been installed, which can be used for other studies than standard measurements at the end station. The mirror chamber is equipped with a MgF2 viewport transmitting VUV radiation in the produced range. Both low- and high-pressure chambers can be connected to the mirror chamber, depending on the needs of the users.
More information about URANOS beamline you can find her: https://synchrotron.uj.edu.pl/en_GB/linie-badawcze/uranos.
