A CALCULATION OF THE GAMMA-RAY SPECTRUM OF THE BULK SHIELDING REACTOR

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A calculation was performed to determine the highenergy portion of the gamma-ray flux at the surfacc of the uranium-aluminum BSF reactor. The flux was considered to consist entirely of the uncollided flux plus the Comptonscattered flux. The four sources of primary gamma rays included in the calculation were prompt fission gamma rays, capture gamma rays from aluminum, capture gamma rays from uranium, and fission-product decay gamma rays. These sources were divided into four energy groups. Although the assumptions used to calculate the Comptonscattered flux tended to over-estimate the actual spectrum, the calculated results were considerably lower than a previously measured … continued below

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deSaussure, G. July 31, 1957.

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A calculation was performed to determine the highenergy portion of the gamma-ray flux at the surfacc of the uranium-aluminum BSF reactor. The flux was considered to consist entirely of the uncollided flux plus the Comptonscattered flux. The four sources of primary gamma rays included in the calculation were prompt fission gamma rays, capture gamma rays from aluminum, capture gamma rays from uranium, and fission-product decay gamma rays. These sources were divided into four energy groups. Although the assumptions used to calculate the Comptonscattered flux tended to over-estimate the actual spectrum, the calculated results were considerably lower than a previously measured spectrum. (auth)

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20 pages

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Other Information: Orig. Receipt Date: 31-DEC-58

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  • July 31, 1957

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  • Nov. 26, 2024, 1:40 a.m.

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deSaussure, G. A CALCULATION OF THE GAMMA-RAY SPECTRUM OF THE BULK SHIELDING REACTOR, report, July 31, 1957; Oak Ridge, Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1021375/: accessed May 9, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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