Upgrade of the Cold Neutron Imaging Instrument, Phase Grating Roll Alignment System

***THIS IS A SOURCES SOUGHT NOTICE*** BACKGROUND The National Institute of Standards and Technology (NIST) is seeking information from sources that may be capable of providing three high precision rotation stages (resolution better than 0.00005 degrees) with a clear aperture to allow the beam to pass unattenuated and required cabling, control hardware, and control software under the authority of FAR 12. The North American Industry Classification System (NAICS) code for this …