Critical masses of uranium diluted with matrix material

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Critical masses of square-prisms of highly enriched uranium diluted in various X/235U ratios with matrix material and polyethylene were measured. The Configuration cores were 22.86-cm and 45.72-cm square and were reflected with 8.1 3-cm and 10.1 6-cm thick side polyethylene reflectors, respectively. The configurations had 10.1 6-cm thick top and bottom polyethylene reflectors. For some configurations, the Rossi-a, which is an eigenvalue value characteristic for a particular configuration, was measured to establish a reactivity scale based on the degree of subcriticality . Finally, the critical mass experiments are compared with values calculated with MCNP and ENDF/B-VI cross-sections.

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23 p.

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Sanchez, R. G. (Rene G.); Loaiza, D. J. (David J.) & Kimpland, R. H. (Robert H.) January 1, 2002.

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Critical masses of square-prisms of highly enriched uranium diluted in various X/235U ratios with matrix material and polyethylene were measured. The Configuration cores were 22.86-cm and 45.72-cm square and were reflected with 8.1 3-cm and 10.1 6-cm thick side polyethylene reflectors, respectively. The configurations had 10.1 6-cm thick top and bottom polyethylene reflectors. For some configurations, the Rossi-a, which is an eigenvalue value characteristic for a particular configuration, was measured to establish a reactivity scale based on the degree of subcriticality . Finally, the critical mass experiments are compared with values calculated with MCNP and ENDF/B-VI cross-sections.

Physical Description

23 p.

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  • Submitted to: Be presented at the International Conference on the New Frontiers of Nuclear Technology, Reactor Physics, Safety and High-Performance Computing, Seoul, Korea, October 7-10, 2002.

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  • Report No.: LA-UR-02-6189
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976359
  • Archival Resource Key: ark:/67531/metadc930879

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 2002

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 5:46 p.m.

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Sanchez, R. G. (Rene G.); Loaiza, D. J. (David J.) & Kimpland, R. H. (Robert H.). Critical masses of uranium diluted with matrix material, article, January 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc930879/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.