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

tion 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 acquisition is 334516 Analytical Laborato

ry Instrument Manufacturing. The NIST neutron imaging team, in the Radiation Physics Division of the Physical Measurement Laboratory, is developing a far-field grating neutron interferometer to measure the projection of the pair correlation