Liquid Wall Options for Tritium-Lean Fast Ignition Inertial Fusion Energy Power Plants

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In an inertial fusion energy (FE) thick-liquid chamber design such as HYLEE-II, a molten-salt is used to attenuate neutrons and protect the chamber structures from radiation damage. In the case of a fast ignition inertial fusion system, advanced targets have been proposed that may be self-sufficient in terms of tritium breeding (i.e., the amount of tritium bred in target exceeds the amount burned). This aspect allows for greater freedom when selecting a liquid for the protective blanket, given that lithium-bearing compounds are no longer required. The present work assesses the characteristics of many single, binary, and ternary molten-salts using the … continued below

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Reyes, S.; Schmitt, R. C.; Latkowski, J. F. & Durbin, S.G.' Sanz, J. January 17, 2002.

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In an inertial fusion energy (FE) thick-liquid chamber design such as HYLEE-II, a molten-salt is used to attenuate neutrons and protect the chamber structures from radiation damage. In the case of a fast ignition inertial fusion system, advanced targets have been proposed that may be self-sufficient in terms of tritium breeding (i.e., the amount of tritium bred in target exceeds the amount burned). This aspect allows for greater freedom when selecting a liquid for the protective blanket, given that lithium-bearing compounds are no longer required. The present work assesses the characteristics of many single, binary, and ternary molten-salts using the NIST Properties of Molten Salts Database. As an initial screening, salts were evaluated for their safety and environmental (S and E) characteristics, which included an assessment of waste disposal rating, contact dose, and radioactive afterheat. Salts that passed the S and E criteria were then evaluated for required pumping power. The pumping power was calculated using three components: velocity head losses, frictional losses, and lifting power. The results of the assessment are used to identify those molten-salts that are suitable for potential liquid-chamber fast-ignition IFE concepts, from both the S and E and pumping power perspective. Recommendations for further analysis are also made.

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526 Kilobytes pages

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  • 6th International Symposium on Fusion Nuclear Technology, San Diego, CA (US), 04/07/2002--04/12/2002

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  • Report No.: UCRL-JC-147079
  • Grant Number: W-7405-Eng-48
  • Office of Scientific & Technical Information Report Number: 803169
  • Archival Resource Key: ark:/67531/metadc741172

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  • January 17, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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Reyes, S.; Schmitt, R. C.; Latkowski, J. F. & Durbin, S.G.' Sanz, J. Liquid Wall Options for Tritium-Lean Fast Ignition Inertial Fusion Energy Power Plants, article, January 17, 2002; Livermore, California. (https://digital.library.unt.edu/ark:/67531/metadc741172/: accessed May 27, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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