The performance test of spin-resolved photoelectron spectrometer at HSRC

We have developed a spin-resolved photoelectron spectrometer with a compact retarding-type Mott spin polarimeter at HSRC, Hiroshima Synchrotron Radiation Center, Hiroshima University. Secondary electrons from Ni(1-bar 1-bar 0) were used as the spin-polarized electron source to do performance test of the polarimeter and the best figure of merit was found as 1.8x10-4 for the effective Sherman function and the scattering intensity as - 0.16 and 7.1x10-4, respectively. Our results show that the self-calibration is possible for this type polarimeter with a large collection angle for scattered electrons