Commissioning of a new beamline and station for ARPES at NSRL

The commissioning of a new beamline and station for angle-resolved photoelectron spectroscopy (ARPES) at the National Synchrotron Radiation Laboratory (NSRL) in Hefei is described. The beamline employs a variable angle spherical grating monochromator (VASGM) covering the photon energy from about 10 to 300 eV. The resolution and the flux of the beamline have been measured using a gas cell and a calibrated photodiode. The whole range resolving power is better than 1000 and the flux is better than 4×1010photons/s/100 mA which have reached the specification of original design. By using the method of second harmonic spectra for high energy and the valence band spectra for low energy, the whole range incident photon energies have been calibrated. Finally, an ARPES experiment from a standard Cu sample is taken to illustrate the performance of the whole system.