Stanford Synchrotron Radiation Lightsource

The BL5-4 station is a normal incidence monochromator beam line optimized for high-resolution angle-resolved photoemission spectroscopy (ARPES) in the photon energy range of 10-40 eV. The dedicated experimental end station is equipped with a SCIENTA R4000 electron spectrometer operating in the parallel multi-angle recording mode. In conjunction with the normal incidence monochromator, this system is capable of performing ARPES experiments with a total energy resolution of a few meV and an angular resolution of 0.3°. The experimental end station consists of two chambers: a sample preparation chamber together with LEED and a spectroscopy analysis chamber. Both chambers are kept under UHV throughout the experiments with a base pressure better than 3x10-11 torr. It is also equipped with a low-temperature sample manipulator with two degree of freedom of rotation, which can be cooled down to 10 K.

See video on the role of aluminum foil in vacuum chamber 'bakeouts.'