October 5, 2020
      
                  
        
  Author(s)
  Thomas  Newton,   Daniel J.  Flynn,   Robert  Williams
 
       
            
    
    
        The National Bureau of Standards Reactor at the NIST Center for Neutron Research (NCNR) is a 20 MW reactor using 93% enriched UO 2 plate-type fuel with D 2O coolant, moderator, and reflector, and is used for a variety of neutron science applications. 23 of