Mirror 1: Platinum-coated, fixed-curvature toroidal mirror (M1); beam collimated into monochromator; 2 degree grazing angle; full orientation control; located 10 meters from the source.
Monochromator: Grating/crystal monochromator; double crystal type scanning motion; uses either gratings or crystals in vacuum with exchange; 3.5 - 85.0 degree grazing angle range; 600 grooves/mm grating has a 2 degree blaze and is gold coated; 2400 grooves/mm grating has a 2 degree blaze and is gold coated; 150 grooves/mm grating has a 2 degree blaze; multilayer mirrors is W/B4C coated.
Mirror 2: Platinum-coated, fixed-curvature toroidal mirror (M2) identical to M1; beam focused onto fixed exit slit 26 meters from the source yielding 1:1 image of source; 2 degree grazing angle; full orientation control; located 16 meters from the source.
A reflectometer mounted in an 18" diameter UHV bell jar with sample adjustable in angle of incidence and orientation around sample normal, detector mount capable of being set at a fixed distance but any angle about sample, whole chamber rotation to alter polarization, and sample preparation/introduction from an auxiliary UHV chamber. No corrosive or non-UHV compatible materials allowed. Calibration chamber with inside dimensions 63” long x 24” diameter, sample translational and angular motions, and 1 cmx1cm Si photodiodes and 2"x2” CMOS area detectors.
Computer System Hardware & Software
Apple Power MC G4 with Mac OS 9: XDAC Labview-based software for data acquisition and control of monochromator and sample/detector motions for the reflectometer and calibration chamber.