Investigation of nuclide importance to functional requirements related to transport and long-term storage of LWR spent fuel

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Description

This study investigates the relative importances of the various actinide, fission-product, and light-element isotopes associated with LWR spent fuel with respect to five analysis areas: criticality safety (absorption fractions), shielding (dose rate fractions), curies (fractional curies levels), decay heat (fraction of total watts), and radiological toxicity (fraction of potential committed effective dose equivalent). These rankings are presented for up to six different burnup/enrichment scenarios and at decay times from 2 to 100,000 years. Ranking plots for each of these analysis areas are given in an Appendix for completeness, as well as summary tables in the main body of the report. ... continued below

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115 p.

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Broadhead, B.L.; DeHart, M.D.; Ryman, J.C.; Tang, J.S. & Parks, C.V. June 1, 1995.

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Description

This study investigates the relative importances of the various actinide, fission-product, and light-element isotopes associated with LWR spent fuel with respect to five analysis areas: criticality safety (absorption fractions), shielding (dose rate fractions), curies (fractional curies levels), decay heat (fraction of total watts), and radiological toxicity (fraction of potential committed effective dose equivalent). These rankings are presented for up to six different burnup/enrichment scenarios and at decay times from 2 to 100,000 years. Ranking plots for each of these analysis areas are given in an Appendix for completeness, as well as summary tables in the main body of the report. Summary rankings are presented in terms of high (greater than 10% contribution to the total), medium (between 1% and 10% contribution), and low (less than 1% contribution) for both short- and long-term cooling. When compared with the expected measurement accuracies, these rankings show that most of the important isotopes can be characterized sufficiently for the purpose of radionuclide generation/depletion code validation in each of the analysis areas. Because the main focus of this work is on the relative importances of isotopes associated with L@ spent fuel, some conclusions may not be applicable to similar areas such as high-level waste (HLW) and nonfuel-bearing components (NFBC).

Physical Description

115 p.

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INIS; OSTI as DE95014462

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  • Other Information: PBD: Jun 1995

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  • Other: DE95014462
  • Report No.: ORNL/TM--12742
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/95570 | External Link
  • Office of Scientific & Technical Information Report Number: 95570
  • Archival Resource Key: ark:/67531/metadc791485

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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.

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  • June 1, 1995

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • Feb. 1, 2016, 12:22 p.m.

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Broadhead, B.L.; DeHart, M.D.; Ryman, J.C.; Tang, J.S. & Parks, C.V. Investigation of nuclide importance to functional requirements related to transport and long-term storage of LWR spent fuel, report, June 1, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc791485/: accessed July 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.