Abstract
High resolving power of in situ synchrotron radiation diffraction revealed unique observations of an irradiated bulk YHx neutron moderator for advanced reactors. Preliminary data analysis indicated that neutron damage may cause hydrogen to be removed from defects or outside of the moderator, and it also may cause some portion of the hydrogen to be regained as hydride via heat treatments. However, more data analysis and additional synchrotron x-ray diffraction experiments are needed to elucidate hydrogen's behavior in metal hydride moderators.
| Original language | English |
|---|---|
| Pages (from-to) | 413-415 |
| Number of pages | 3 |
| Journal | Transactions of the American Nuclear Society |
| Volume | 126 |
| DOIs | |
| State | Published - 2022 |
| Event | 2022 Transactions of the American Nuclear Society Annual Meeting, ANS 2022 - Anaheim, United States Duration: Jun 12 2022 → Jun 16 2022 |
Funding
The synchrotron work was supported by the US Department of Energy, Office of Nuclear Energy under DOE Idaho Operations Office Contract DE-AC07-05 ID 14517, as part of Nuclear Science User Facilities. This research used the x-ray powder diffraction beamline at the National Synchrotron Light Source-II, a DOE Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under Contract No. DE-SC0012704. Neutron-irradiated sample preparation work was supported by the US DOE NE's Advanced Materials and Manufacturing Technologies program at ORNL. Data analysis and manuscript preparation portion was supported by the U.S. DOE NE's Microreactor program at INL.