Hydrided moderators for nuclear reactors
Abstract
High temperature moderators for nuclear reactors and processes for their production are disclosed. The moderators include at least one hydrided metal and/or hydride metal allow, such as yttrium hydride, thorium hydride, yttrium-cerium hydride, yttrium-gadolinium hydride, yttrium calcium hydride, cerium hydride, etc. Such metal hydrides and/or hydride alloys may have high thermal stability, a relatively low thermal neutron absorption cross section, the ability to retain hydrogen over a large temperature range, and have good mechanical properties. Such moderators may induce spectral shift in reactors which, in turn, magnifies the Doppler reactivity temperature coefficient. Such moderators to thermalize neutrons may also enhance fuel utilization and cost-effectiveness of the reactor while keeping the core portable.
- Inventors:
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2293797
- Patent Number(s):
- 11802045
- Application Number:
- 16/887,863
- Assignee:
- Triad National Security, LLC (Los Alamos, NM)
- DOE Contract Number:
- 89233218CNA000001
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/29/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Dasari, Venkateswara Rao, Luther, Erik, Cummins, Dustin, Saleh, Tarik, White, Joshua Taylor, Wermer, Joseph, Shivprasad, Aditya, and Fallgren, A. J. Hydrided moderators for nuclear reactors. United States: N. p., 2023.
Web.
Dasari, Venkateswara Rao, Luther, Erik, Cummins, Dustin, Saleh, Tarik, White, Joshua Taylor, Wermer, Joseph, Shivprasad, Aditya, & Fallgren, A. J. Hydrided moderators for nuclear reactors. United States.
Dasari, Venkateswara Rao, Luther, Erik, Cummins, Dustin, Saleh, Tarik, White, Joshua Taylor, Wermer, Joseph, Shivprasad, Aditya, and Fallgren, A. J. Tue .
"Hydrided moderators for nuclear reactors". United States. https://www.osti.gov/servlets/purl/2293797.
@article{osti_2293797,
title = {Hydrided moderators for nuclear reactors},
author = {Dasari, Venkateswara Rao and Luther, Erik and Cummins, Dustin and Saleh, Tarik and White, Joshua Taylor and Wermer, Joseph and Shivprasad, Aditya and Fallgren, A. J.},
abstractNote = {High temperature moderators for nuclear reactors and processes for their production are disclosed. The moderators include at least one hydrided metal and/or hydride metal allow, such as yttrium hydride, thorium hydride, yttrium-cerium hydride, yttrium-gadolinium hydride, yttrium calcium hydride, cerium hydride, etc. Such metal hydrides and/or hydride alloys may have high thermal stability, a relatively low thermal neutron absorption cross section, the ability to retain hydrogen over a large temperature range, and have good mechanical properties. Such moderators may induce spectral shift in reactors which, in turn, magnifies the Doppler reactivity temperature coefficient. Such moderators to thermalize neutrons may also enhance fuel utilization and cost-effectiveness of the reactor while keeping the core portable.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {10}
}
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