Standard Test Method for Nondestructive Assay of Plutonium By Passive NeutronMultiplicity Counting

摘要

This test method describes the nondestructive assay of plutonium in forms such asmetal, oxide, scrap, residue, or waste using passive neutron multiplicity counting. This test method provides rapid results that are usually more accurate than conventional neutron coincidence counting. The method can be applied to a large variety of plutonium items in various geometries in cans, 208-L drums, or Standard Waste Boxes. It has been used to assay items whose plutonium content ranges from 1g to 1000's of gs.