Abstract
This work discusses the status of n+234U evaluation work up to 1.5 keV performed to update the resolved resonance region in the recently released US ENDF/B-VIII.1 nuclear data library. The evaluation procedure was performed with the R-matrix code SAMMY by using the latest available measured data with particular attention to neutron capture yield data measured at the Neutron Time of Flight (nTOF) facility at the European Organization for Nuclear Research (CERN). Criticality benchmark calculations performed using the SCALE tool system were used to verify the effect of the updated evaluation.
| Original language | English |
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| Title of host publication | Proceedings of the Nuclear Criticality Safety Division 2025 Conference, NCSD 2025 |
| Publisher | American Nuclear Society |
| Pages | 464-469 |
| Number of pages | 6 |
| ISBN (Electronic) | 9780894482274 |
| DOIs | |
| State | Published - 2025 |
| Event | 2025 Nuclear Criticality Safety Division Conference, NCSD 2025 - Austin, United States Duration: Sep 14 2025 → Sep 18 2025 |
Publication series
| Name | Proceedings of the Nuclear Criticality Safety Division 2025 Conference, NCSD 2025 |
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Conference
| Conference | 2025 Nuclear Criticality Safety Division Conference, NCSD 2025 |
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| Country/Territory | United States |
| City | Austin |
| Period | 09/14/25 → 09/18/25 |
Funding
This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). This work was supported by the US Department of Energy’s Nuclear Criticality Safety Program, which is funded and managed by the National Nuclear Security Administration.
Keywords
- criticality
- evaluation
- nuclear data
- R-matrix
- uranium