A Study of Beryllium-Oxide-Moderated Subcritical Assemblies Containing Various Metal Absorbers

John R. Morton III; James M. Piowaty; Joseph Petruzzi; Loren Gardner

doi:dx.doi.org/10.13182/NSE65-A20031

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 21 / Number 3

A Study of Beryllium-Oxide-Moderated Subcritical Assemblies Containing Various Metal Absorbers

John R. Morton III, James M. Piowaty, Joseph Petruzzi, Loren Gardner

Nuclear Science and Engineering / Volume 21 / Number 3 / March 1965 / Pages 289-295

Technical Paper / dx.doi.org/10.13182/NSE65-A20031

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Reactivity worth measurements are reported for various metal plates in a quasi-homogeneous subcritical assembly of enriched uranium and beryllium oxide. Worths of nickel, iron, cobalt, gold, Hastelloy R-235 and René 41 were measured in this system using the pulsed-neutron method. Equivalences were determined between these absorber materials and the fueled-core material. The results indicate that the prompt lifetime of this system is relatively insensitive to massive localized absorbers.