A Multiwavelength Monochromator for the X3A1 Fixed-Angle Station at the National Synchrotron Light Source

Abstract

A new revolving monochromator intercepting 2 mrad of the radiation fan at the State University of New York (SUNY) X3 beamline at the National Synchrotron Light Source (NSLS) is described. The design allows for easy interchange between four different monochromator crystals. The photons are reflected in the horizontal plane to provide a monochromatic beam at a fixed-angle diffraction station. The triangular crystals can be bent for horizontal focusing.