INSIGNIFICANCE OF RADIOTOXICITY OF SPALLATION PRODUCTS IN AN ACCELERATOR-DRIVEN TRANSMUTATION SYSTEM.

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One of the concerns facing accelerator-driven transmutation systems (ADSs) is whether the radiotoxicity of materials produced during the transmutation process poses more of a concern than does the radiotoxicity of the spent nuclear fuel (SNF) itself. Most of the common fission products (or FPs) are emitters of beta radiation, but additionally, some of the radionuclides generated during spallation are alpha emitters. Thus, both ingestion and inhalation radiotoxicity of the materials produced during spallation could be significant. Typically, ingestion is considered to be more significant than inhalation radiotoxicity for long-term storage/disposal (such as in a repository) because the greatest potential biological ... continued below

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219 Kilobytes pages

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TRELLUE, HOLLY R & PITCHER, ERIC J June 6, 2002.

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One of the concerns facing accelerator-driven transmutation systems (ADSs) is whether the radiotoxicity of materials produced during the transmutation process poses more of a concern than does the radiotoxicity of the spent nuclear fuel (SNF) itself. Most of the common fission products (or FPs) are emitters of beta radiation, but additionally, some of the radionuclides generated during spallation are alpha emitters. Thus, both ingestion and inhalation radiotoxicity of the materials produced during spallation could be significant. Typically, ingestion is considered to be more significant than inhalation radiotoxicity for long-term storage/disposal (such as in a repository) because the greatest potential biological hazard to humans occurs when the isotope is absorbed in nearby ground water or brine and transported from the repository to drinking water. Nonetheless, inhalation radiotoxicity is also important to analyze in case of a breach of containment inside the accelerator facility and/or for short-term (i.e., above-ground) storage concerns. Thus, this study calculated the radiotoxicity of spallation products (or SPs) from three different targets: lead-bismuth eutectic (LBE), LBE-cooled tungsten, and LBE-cooled lead.

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219 Kilobytes pages

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  • AMERICAN NUCLEAR SOCIETY MEETING, WASHINGTON, DC (US), 11/18/2002

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  • Report No.: LA-UR-02-3511
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 807970
  • Archival Resource Key: ark:/67531/metadc735564

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  • June 6, 2002

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  • Oct. 18, 2015, 6:40 p.m.

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  • March 30, 2016, 12:51 p.m.

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TRELLUE, HOLLY R & PITCHER, ERIC J. INSIGNIFICANCE OF RADIOTOXICITY OF SPALLATION PRODUCTS IN AN ACCELERATOR-DRIVEN TRANSMUTATION SYSTEM., article, June 6, 2002; New Mexico. (digital.library.unt.edu/ark:/67531/metadc735564/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.