Nuclear Data Evaluation for Reactor Applications

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In past years, nuclear analysts had to rely on a limited amount of nuclear data for reactor design. In that time, the need for nuclear data was driven by the thermal and fast reactor programs. In a thermal reactor, the fissions of importance all take place below 4 eV. Because of this, evaluations for thermal applications emphasized this region. In a typical fast reactor, however, the most important fission range shifts upwards to the 10's to 100's of keV region, and this led to evaluations that emphasized this range. Nuclear criticality situations involve an energy spectrum that peaks in the ... continued below

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5 pages

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Leal, L.C. January 19, 2001.

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In past years, nuclear analysts had to rely on a limited amount of nuclear data for reactor design. In that time, the need for nuclear data was driven by the thermal and fast reactor programs. In a thermal reactor, the fissions of importance all take place below 4 eV. Because of this, evaluations for thermal applications emphasized this region. In a typical fast reactor, however, the most important fission range shifts upwards to the 10's to 100's of keV region, and this led to evaluations that emphasized this range. Nuclear criticality situations involve an energy spectrum that peaks in the 10's to 100's eV range, and need critical attention to the cross sections in this range. Since all of these systems produce fission neutrons at high energies-500 keV to a few MeV-attention has been given to this energy range. As noted, the region most neglected is the epithermal region; however, calculational experiences suggest many nuclides need improvements in all energy regions.

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5 pages

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  • ANS 2001 Annual Meeting, Topical, No conference location provided, No conference dates provided

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  • Report No.: P01-109685
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 774674
  • Archival Resource Key: ark:/67531/metadc722272

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 19, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • March 23, 2016, 10:44 a.m.

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Leal, L.C. Nuclear Data Evaluation for Reactor Applications, article, January 19, 2001; Tennessee. (digital.library.unt.edu/ark:/67531/metadc722272/: accessed November 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.