Critical Dimensions Of Aqueous Solutions Of U(37)O2F2

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The critical dimensions of a sphere of an aqueous solution of 37-wt%-{sup 235}U-enriched uranyl fluoride and of several unreflected and water-reflected cylinders at a number of chemical concentrations were determined experimentally. The critical uranium concentration in the unreflected sphere was 51.93 g/liter. The neutron multiplication factor of the sphere was calculated by the DSN transport code in the S{sub 4} approximation to be 1.0100; the relative fission-rate distribution along a diameter, also calculated by DSN, compared favorably with measurements. The results from the cylinders, although less detailed and less accurate, can be generalized for nuclear criticality safety guidance. The dimensions ... continued below

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Callihan, D. January 1, 1975.

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  • Oak Ridge Y-12 Plant
    Publisher Info: Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
    Place of Publication: Oak Ridge, Tennessee

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The critical dimensions of a sphere of an aqueous solution of 37-wt%-{sup 235}U-enriched uranyl fluoride and of several unreflected and water-reflected cylinders at a number of chemical concentrations were determined experimentally. The critical uranium concentration in the unreflected sphere was 51.93 g/liter. The neutron multiplication factor of the sphere was calculated by the DSN transport code in the S{sub 4} approximation to be 1.0100; the relative fission-rate distribution along a diameter, also calculated by DSN, compared favorably with measurements. The results from the cylinders, although less detailed and less accurate, can be generalized for nuclear criticality safety guidance. The dimensions of equivalent spheres, infinite cylinders, and infinite slabs were estimated for selected chemical concentrations by equating bucklings.

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  • Report No.: Y/DR-135
  • Grant Number: DE-AC05-00OR22800
  • DOI: 10.2172/1021431 | External Link
  • Office of Scientific & Technical Information Report Number: 1021431
  • Archival Resource Key: ark:/67531/metadc835515

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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.

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  • January 1, 1975

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • Sept. 22, 2017, 6:44 p.m.

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Callihan, D. Critical Dimensions Of Aqueous Solutions Of U(37)O2F2, report, January 1, 1975; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc835515/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.