MIRROR BOXES AND MIRROR MOUNTS FOR PHOTOPHYSICS BEAMLINE

A medium resolution beamline, viz. photophysics beamline is being buil t at INDUS-I, a 450 Mev synchrotron radiation source (SRS) at the Cent re for Advanced Technology (CAT), Indore. To house the pre-and post-fo cusing toroidal mirrors and permit precision movements for steering th e SRS beam up to the sample, two ultra-high vacuum (UHV) compatible mi rror boxes and mirrors have been designed, fabricated and tested. Deta ils of the setup, including UHV testing (P < 10(-9) mbar) and performa nce evaluation of the mirror mounts under UHV conditions, are discusse d in this paper.