A Nondestructive Assay Device for Highly Enriched Fuel Assemblies

Richard V. Babcock; Stanley L. Ruby

doi:dx.doi.org/10.13182/NSE60-A25822

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 8 / Number 5

A Nondestructive Assay Device for Highly Enriched Fuel Assemblies

Richard V. Babcock, Stanley L. Ruby

Nuclear Science and Engineering / Volume 8 / Number 5 / November 1960 / Pages 410-415

Technical Paper / dx.doi.org/10.13182/NSE60-A25822

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An instrument has been developed which can nondestructively determine the U²³⁵ and boron content of highly enriched, unirradiated fuel assemblies in five to fifteen minutes per element. Two nuclear measurement methods are used: counting of the natural radioactivity of U²³⁵ and neutron attenuation measurements. For MTR and ETR fuel elements, the instrument appears to be accurate to 0.3% and 4.0% in terms of the respective U²³⁵ and boron contents.