Extended SM-2 Critical Experiments : CE-2

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Abstract: This technical report contains a description and results of a second series of critical experiments performed on the SM-2 core mock-up, as additional to the first series of experiments reported in APAE No. 54. The SM-2 core mock-up contains 36.4 kg U-235 and and estimated 67.9 gm B-10. The equivalent diameter and the active height are about 22 in.; the metal-to-water volume ration is 0.344. Data is presented on activation, reactivity, and stuck rod measurements. All measurements were conducted on the open seven control rod array employing 38 stationary fuel elements. Activation measurements consisted of neutron flux measurements using … continued below

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xx, 135 pages ; illustrations.

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McCool, W. J.; Robinson, R. A.; Weiss, S. H.; Raby, T. M.; Schrader, E. W. & Walthousen, L. D. June 30, 1961.

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Abstract: This technical report contains a description and results of a second series of critical experiments performed on the SM-2 core mock-up, as additional to the first series of experiments reported in APAE No. 54. The SM-2 core mock-up contains 36.4 kg U-235 and and estimated 67.9 gm B-10. The equivalent diameter and the active height are about 22 in.; the metal-to-water volume ration is 0.344. Data is presented on activation, reactivity, and stuck rod measurements. All measurements were conducted on the open seven control rod array employing 38 stationary fuel elements. Activation measurements consisted of neutron flux measurements using uranium fission foils for relative power distribution studies, the effect of flux suppressors on reducing power peaks, blocked coolant channel measurements, and gamma ray dose distribution. Reactivity measurements were performed to determine the effect f flow divider, flux suppressors and stimulated high temperature and pressure operation; b-10 loading in the SM-2 core; and core material coefficients. For the later, the worth in cents per gm or cents per cc was determined at simulated temperature of 510 degree F for B-10, U-235, stainless steel, and void. Stuck rod measurements were made to obtain an indication of the criticality margin in the event one or more control rods should stick in the operating position.

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xx, 135 pages ; illustrations.

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Digitized from microopaque cards.

Contract No. AT(30-3)-326 with U. S. Atomic Energy Commission, New York Operations Office.

Includes bibliographic references (page 135).

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  • Report No.: APAE-54 Supplement
  • Grant Number: AT(30-3)-326
  • SuDoc Number: Y 3.AT 7:22/APAE-54 Supplement
  • Accession or Local Control No: metadc1201954
  • Archival Resource Key: ark:/67531/metadc1201954

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Imaged from microcard, these technical reports describe research performed for U.S. government agencies from the 1930s to the 1960s. The reports were provided by the Technical Report Archive and Image Library (TRAIL).

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  • June 30, 1961

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  • Aug. 15, 2019, 10:26 p.m.

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  • April 23, 2020, 6:02 p.m.

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McCool, W. J.; Robinson, R. A.; Weiss, S. H.; Raby, T. M.; Schrader, E. W. & Walthousen, L. D. Extended SM-2 Critical Experiments : CE-2, report, June 30, 1961; Schenectady, New York.. (https://digital.library.unt.edu/ark:/67531/metadc1201954/: accessed May 15, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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