Construction and Performance of Combustion Beamline at NSRL

An undulator-based VUV beamline BL03U is constructed at the National Synchrotron Radiation Laboratory. Optical design and performance test results are presented in this paper. The monochromator is a Czerny-Turner configuration with a toroidal collimating mirror, two plane gratings, and a toroidal focusing mirror. Plane gratings with line densities of 200 and 400 l/mm are used to cover the photon energy range of 5-21 eV. A gas absorption spectrum is used to evaluate the beamline performance. The photon energy resolving power (E/Delta E) of the beamline is approximately 3900 at 7.3 eV for the 200 l/mm grating and 4200 at 14.6 eV for the 400 l/mm grating. The photon flux is approximately 5 x 10(12) photons/s/300 mA at energy of 10 eV.