PRELIMINARY REPORT ON 2% U$sup 235$-ENRICHED UF$sub 4$-C$sub 25$H$sub 52$ CRITICAL ASSEMBLIES

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A series of critical experiments with blocks of 2% U/sup 235/--enriched UF/sub 4/-C/sub 25/sub 5/H/sub 52/ was initiated at the ORN L Critical Experiments Facility. Thus far assemblies with H:U/sup 235/ atomic ratios of 195 and 294 were built in parallelepipedal and simulated cylindrical geometries, both reflected and unreflected. From the results the minimum critical masses for reflected spheres were determined to be 16.3 and 8.5 kg of U/sup 235/ for fuel mixtures with H:U atomic ratios of 195 and 294, respectively. The minimum critical masses for unreflected spheres of these two fuel mixtures are 24.3 and 12.7 kg of ... continued below

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Pages: 42

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Mihalczo, J T; Lynn, J J; Scott, D & Connolly, W C April 22, 1959.

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A series of critical experiments with blocks of 2% U/sup 235/--enriched UF/sub 4/-C/sub 25/sub 5/H/sub 52/ was initiated at the ORN L Critical Experiments Facility. Thus far assemblies with H:U/sup 235/ atomic ratios of 195 and 294 were built in parallelepipedal and simulated cylindrical geometries, both reflected and unreflected. From the results the minimum critical masses for reflected spheres were determined to be 16.3 and 8.5 kg of U/sup 235/ for fuel mixtures with H:U atomic ratios of 195 and 294, respectively. The minimum critical masses for unreflected spheres of these two fuel mixtures are 24.3 and 12.7 kg of U/sup 235/ respsctively. (auth)

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Pages: 42

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  • Other Information: Orig. Receipt Date: 31-DEC-59

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  • Report No.: CF-59-4-120
  • Grant Number: None
  • DOI: 10.2172/4240567 | External Link
  • Office of Scientific & Technical Information Report Number: 4240567
  • Archival Resource Key: ark:/67531/metadc1022695

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  • April 22, 1959

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  • Oct. 15, 2017, 10:09 p.m.

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  • Oct. 27, 2017, 11:23 a.m.

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Mihalczo, J T; Lynn, J J; Scott, D & Connolly, W C. PRELIMINARY REPORT ON 2% U$sup 235$-ENRICHED UF$sub 4$-C$sub 25$H$sub 52$ CRITICAL ASSEMBLIES, report, April 22, 1959; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc1022695/: accessed June 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.