Secondary Startup Neutron Sources as a Source of Tritium in a Pressurized Water Reactor (PWR) Reactor Coolant System (RCS)

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The hypothesis of this paper is that the Zircaloy clad fuel source is minimal and that secondary startup neutron sources are the significant contributors of the tritium in the RCS that was previously assigned to release from fuel. Currently there are large uncertainties in the attribution of tritium in a Pressurized Water Reactor (PWR) Reactor Coolant System (RCS). The measured amount of tritium in the coolant cannot be separated out empirically into its individual sources. Therefore, to quantify individual contributors, all sources of tritium in the RCS of a PWR must be understood theoretically and verified by the sum of ... continued below

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Shaver, Mark W. & Lanning, Donald D. February 1, 2010.

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The hypothesis of this paper is that the Zircaloy clad fuel source is minimal and that secondary startup neutron sources are the significant contributors of the tritium in the RCS that was previously assigned to release from fuel. Currently there are large uncertainties in the attribution of tritium in a Pressurized Water Reactor (PWR) Reactor Coolant System (RCS). The measured amount of tritium in the coolant cannot be separated out empirically into its individual sources. Therefore, to quantify individual contributors, all sources of tritium in the RCS of a PWR must be understood theoretically and verified by the sum of the individual components equaling the measured values.

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  • Report No.: PNNL-19151
  • Grant Number: AC05-76RL01830
  • DOI: 10.2172/991094 | External Link
  • Office of Scientific & Technical Information Report Number: 991094
  • Archival Resource Key: ark:/67531/metadc1015353

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  • February 1, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 25, 2017, 4:18 p.m.

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Shaver, Mark W. & Lanning, Donald D. Secondary Startup Neutron Sources as a Source of Tritium in a Pressurized Water Reactor (PWR) Reactor Coolant System (RCS), report, February 1, 2010; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc1015353/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.