Sequential charged-particle and neutron activation of Flibe in the HYLIFE-II inertial fusion energy power plant design

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Most radionuclide generation/depletion codes consider only neutron reactions and assume that charged particles, which may be generated in these reactions, deposit their energy locally without undergoing further nuclear interactions. Neglect of sequential charged-particle (x,n) reactions can lead to large underestimation in the inventories of radionuclides. PCROSS code was adopted for use with the ACAB activation code to enable calculation of the effects of (x,n) reactions upon radionuclide inventories and inventory-related indices. Activation calculations were made for Flibe (2LiF + BeF{sub 2}) coolant in the HYLIFE-II inertial fusion energy (IFE) power plant design. For pure Flibe coolant, it was found that ... continued below

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7 p.

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Latkowski, J.F.; Tobin, M.T.; Vujic, J.L. & Sanz, J. June 14, 1996.

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Most radionuclide generation/depletion codes consider only neutron reactions and assume that charged particles, which may be generated in these reactions, deposit their energy locally without undergoing further nuclear interactions. Neglect of sequential charged-particle (x,n) reactions can lead to large underestimation in the inventories of radionuclides. PCROSS code was adopted for use with the ACAB activation code to enable calculation of the effects of (x,n) reactions upon radionuclide inventories and inventory-related indices. Activation calculations were made for Flibe (2LiF + BeF{sub 2}) coolant in the HYLIFE-II inertial fusion energy (IFE) power plant design. For pure Flibe coolant, it was found that (x,n) reactions dominate the residual contact dose rate at times of interest for maintenance and decommissioning. For impure Flibe, however, radionuclides produced directly in neutron reaction dominate the contact dose rate and (x,n) reactions do not make a significant contribution. Results demonstrate potential importance of (x,n) reactions and that the relative importance of (x,n) reactions varies strongly with the composition of the material considered. Future activation calculations should consider (x,n) reactions until a method for pre-determining their importance is established.

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7 p.

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INIS; OSTI as DE96013426

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  • Annual meeting of the American Nuclear Society (ANS), Reno, NV (United States), 16-20 Jun 1996

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  • Other: DE96013426
  • Report No.: UCRL-JC--123558
  • Report No.: CONF-9606116--73
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 378982
  • Archival Resource Key: ark:/67531/metadc683099

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  • June 14, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 23, 2016, 12:08 p.m.

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Latkowski, J.F.; Tobin, M.T.; Vujic, J.L. & Sanz, J. Sequential charged-particle and neutron activation of Flibe in the HYLIFE-II inertial fusion energy power plant design, article, June 14, 1996; California. (digital.library.unt.edu/ark:/67531/metadc683099/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.