Neutron Sources and Radiography Beamlines

The Fluence Rate and Approximate LID for the Five Apertures Available at the NIST Neutron Imaging Facility. The Slits in Positions 1 and 2 Reduce the Geometric Blur Along One Direction by About a Factor of 5 over the Previous Configuration for Use in High-Resolution Imaging of the Through-Plane Water Content. 

Aperture number Aperture dimension ss LID (x,y) Fluence rate (cm-2 s 1) 

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