Actual and potential measurements of fission-rate ratios in the NIST iron sphere

R. L. Perel*, J. J. Wagschal, Y. Yeivin

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

We analyze various calculated fission-rate ratios in the leakage spectrum of the NIST iron sphere benchmark field employing a few modern cross-section libraries and compare the only measured value of the 237Np/238U ratio to the respective calculated values. We also present the sensitivities of the calculated fission rates and fission-rate ratios to the 56Fe elastic- and first-level-inelastic-scattering cross sections. We conclude with a recommendation of additional measurements that can shed more light on the various iron, in particular 56Fe, cross-section evaluations.

Original languageAmerican English
Pages (from-to)344-351
Number of pages8
JournalASTM Special Technical Publication
Issue number1398
DOIs
StatePublished - 2001
EventReactor Dosimetry: Radiation Metrology and Assesment - Osaka, Japan
Duration: 12 Sep 199917 Sep 1999

Keywords

  • Cross-section libraries
  • Iron sphere
  • NIST
  • Reaction rates
  • Sensitivities

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