Effect of Soluble Neutron Absorbers on the Criticality of Low-Uranium-235 Enriched UO2 Lattices

Autor:	R. C. Lloyd, E. D. Clayton, B.M. Durst
Rok vydání:	1979
Předmět:	Materials science Uranium dioxide Analytical chemistry chemistry.chemical_element Actinide Uranium Rod Nuclear physics chemistry.chemical_compound Neutron capture Nuclear Energy and Engineering chemistry Criticality Uranium-235 Boron
Zdroj:	Nuclear Science and Engineering. 71:164-169
ISSN:	1943-748X 0029-5639
DOI:	10.13182/nse79-a20407
Popis:	A series of experiments was performed to determine the effect of soluble neutron absorbers on the criticality of water-moderated latticed assemblies. The soluble absorbers used were boron, gadolinium, and cadmium. These materials were mixed with the moderator and reflector of lattices of 4.3-wt %-/sup 235/U-enriched UO/sub 2/ fuel pins with stainless-steel cladding. Lattice spacings of 22.9, 27.9, and 33.0 mm, center-to-center, were measured to determine the critical number of rods. The value of k/sub eff/ was computed for each assembly on which criticality was determined. The computed k/sub eff/ value were up to approx. 2% above unity in some cases, with the average value for the entire series being 1.007.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5d322e72278abfd8cfdf475423240d86 https://doi.org/10.13182/nse79-a20407 Zobrazit plný text záznamu