Fluxes and Reaction Rates in the Presence of Interferring Resonances

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The effects of competition between resonances of different isotopes were investigated. Flux and reaction rate calculations on a Pu/sup 239/-- U/sup 238/ system revealed that U/sup 238/ exhibits both self-shielding and interference effects, the latter becoming noticeable at enrichment of a few per cent. Gold activation was also found to be depressed by the presence of U, but was insensitive at low enrichment values, Investigation of the Pu/sup 239/ resonance integral showed an asymmetric effect involving both interference between potential and resonant scattering and interference with resonance absorption in another isotope. The interference scattering arising in each resonance level had … continued below

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9 pages : illustrations.

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Kelber, Charles N. November 1963.

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The effects of competition between resonances of different isotopes were investigated. Flux and reaction rate calculations on a Pu/sup 239/-- U/sup 238/ system revealed that U/sup 238/ exhibits both self-shielding and interference effects, the latter becoming noticeable at enrichment of a few per cent. Gold activation was also found to be depressed by the presence of U, but was insensitive at low enrichment values, Investigation of the Pu/sup 239/ resonance integral showed an asymmetric effect involving both interference between potential and resonant scattering and interference with resonance absorption in another isotope. The interference scattering arising in each resonance level had a notable effect on the average change in the Doppler coefficient. (D.C.W.)

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9 pages : illustrations.

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Digitized from microopaque cards.

To be presented at the American Nuclear Society Meeting, New York, New York, November 18-21, 1963.

Includes bibliographic references (page 7)

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  • Report No.: CONF-187-76
  • SuDoc Number: Y 3.At 7:22/CONF-187-76
  • Accession or Local Control No: metadc1201731
  • Archival Resource Key: ark:/67531/metadc1201731

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  • November 1963

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  • Aug. 27, 2019, 3:53 p.m.

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  • April 1, 2020, 4:08 p.m.

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Kelber, Charles N. Fluxes and Reaction Rates in the Presence of Interferring Resonances, report, November 1963; Oak Ridge, Tennessee.. (https://digital.library.unt.edu/ark:/67531/metadc1201731/: accessed November 9, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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