Materials considerations for molten salt accelerator-based plutonium conversion systems

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Description

Accelerator-driven transmutation technology (ADTT) refers to a concept for a system that uses a blanket assembly driven by a source of neutrons produced when high-energy protons from an accelerator strike a heavy metal target. One application for such a system is called Accelerator-Based Plutonium Conversion, or ABC. Currently, the version of this concept being proposed by the Los Alamos National Laboratory features a liquid lead target material and a blanket fuel of molten fluorides that contain plutonium. Thus, the materials to be used in such a system must have, in addition to adequate mechanical strength, corrosion resistance to molten lead, ... continued below

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36 p.

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DiStefano, J.R.; DeVan, J.H.; Keiser, J.R.; Klueh, R.L. & Eatherly, W.P. March 1, 1995.

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Description

Accelerator-driven transmutation technology (ADTT) refers to a concept for a system that uses a blanket assembly driven by a source of neutrons produced when high-energy protons from an accelerator strike a heavy metal target. One application for such a system is called Accelerator-Based Plutonium Conversion, or ABC. Currently, the version of this concept being proposed by the Los Alamos National Laboratory features a liquid lead target material and a blanket fuel of molten fluorides that contain plutonium. Thus, the materials to be used in such a system must have, in addition to adequate mechanical strength, corrosion resistance to molten lead, corrosion resistance to molten fluoride salts, and resistance to radiation damage. In this report the corrosion properties of liquid lead and the LiF-BeF{sub 2} molten salt system are reviewed in the context of candidate materials for the above application. Background information has been drawn from extensive past studies. The system operating temperature, type of protective environment, and oxidation potential of the salt are shown to be critical design considerations. Factors such as the generation of fission products and transmutation of salt components also significantly affect corrosion behavior, and procedures for inhibiting their effects are discussed. In view of the potential for extreme conditions relative to neutron fluxes and energies that can occur in an ADTT, a knowledge of radiation effects is a most important factor. Present information for potential materials selections is summarized.

Physical Description

36 p.

Notes

INIS; OSTI as DE95012545

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  • Other Information: PBD: Mar 1995

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  • Other: DE95012545
  • Report No.: ORNL/TM--12925/R1
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/73004 | External Link
  • Office of Scientific & Technical Information Report Number: 73004
  • Archival Resource Key: ark:/67531/metadc709798

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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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Creation Date

  • March 1, 1995

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 19, 2016, 7:41 p.m.

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DiStefano, J.R.; DeVan, J.H.; Keiser, J.R.; Klueh, R.L. & Eatherly, W.P. Materials considerations for molten salt accelerator-based plutonium conversion systems, report, March 1, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc709798/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.