Advanced Moderator Material Handbook (FY23 Version)

Shivprasad, Aditya Prahlad; Cinbiz, Mahmut N.; Torres, James R.; Cutler, Theresa Elizabeth; Wootan, D.W.; Jewell, J. Keith; Mehta, Vedant Kiritkumar; Widgeon Paisner, Scarlett; Kohnert, Caitlin Anne; Taylor, C. N.; Luther, Erik Paul; Trellue, Holly Renee

doi:10.2172/2204161

DOE OSTI · 2204161

Advanced Moderator Material Handbook (FY23 Version)

Shivprasad, Aditya Prahlad·Cinbiz, Mahmut N.·Torres, James R.·Cutler, Theresa Elizabeth·Wootan, D.W.·Jewell, J. Keith·Mehta, Vedant Kiritkumar·Widgeon Paisner, Scarlett·Kohnert, Caitlin Anne·Taylor, C. N.·Luther, Erik Paul·Trellue, Holly Renee

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Abstract

High hydrogen density moderators such as metal hydrides are an important research topic within the DOE NE Microreactor Program due to their ability to retain hydrogen to much higher temperatures than other hydrogenous media. This class of moderators, which includes yttrium dihydride (YH 2 ), thermalizes neutrons in the system such that the overall fuel mass or the required uranium enrichment in the system can be significantly reduced. Knowledge of material properties, both in the as-fabricated and irradiated state, are important to understanding moderator performance during steady-state and transient reactor operation.

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08 HYDROGEN 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS 22 GENERAL STUDIES OF NUCLEAR REACTORS

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Shivprasad, Aditya Prahlad, Cinbiz, Mahmut N., Torres, James R., Cutler, Theresa Elizabeth, Wootan, D.W., Jewell, J. Keith, Mehta, Vedant Kiritkumar, Widgeon Paisner, Scarlett, Kohnert, Caitlin Anne, Taylor, C. N., Luther, Erik Paul, Trellue, Holly Renee. 2023-10-25. Advanced Moderator Material Handbook (FY23 Version). https://doi.org/10.2172/2204161

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