Neutron Resonance Parameters and Covariance Matrix of 239Pu

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In order to obtain the resonance parameters in a single energy range and the corresponding covariance matrix, a reevaluation of 239Pu was performed with the code SAMMY. The most recent experimental data were analyzed or reanalyzed in the energy range thermal to 2.5 keV. The normalization of the fission cross section data was reconsidered by taking into account the most recent measurements of Weston et al. and Wagemans et al. A full resonance parameter covariance matrix was generated. The method used to obtain realistic uncertainties on the average cross section calculated by SAMMY or other processing codes was examined.

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Derrien, Herve; Leal, Luiz C & Larson, Nancy M August 1, 2008.

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In order to obtain the resonance parameters in a single energy range and the corresponding covariance matrix, a reevaluation of 239Pu was performed with the code SAMMY. The most recent experimental data were analyzed or reanalyzed in the energy range thermal to 2.5 keV. The normalization of the fission cross section data was reconsidered by taking into account the most recent measurements of Weston et al. and Wagemans et al. A full resonance parameter covariance matrix was generated. The method used to obtain realistic uncertainties on the average cross section calculated by SAMMY or other processing codes was examined.

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  • Report No.: ORNL/TM-2008/123
  • Grant Number: DE-AC05-00OR22725
  • DOI: 10.2172/969958 | External Link
  • Office of Scientific & Technical Information Report Number: 969958
  • Archival Resource Key: ark:/67531/metadc932146

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  • August 1, 2008

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Nov. 21, 2016, 6:52 p.m.

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Derrien, Herve; Leal, Luiz C & Larson, Nancy M. Neutron Resonance Parameters and Covariance Matrix of 239Pu, report, August 1, 2008; [Tennessee]. (digital.library.unt.edu/ark:/67531/metadc932146/: accessed August 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.