Abstract
Modern nuclear data processing in the SCALE code system needs to support the latest release of the US ENDF/B evaluated nuclear data library. Due to the significant expansion of thermal moderator materials provided in the ENDF/B-VIII.1 release, new formalisms must be used to represent SCALE nuclear data to minimize the size of libraries provided to users. In this work, VALID models were used to validate criticality safety benchmark performance of the new format, which more efficiently stores information regarding thermal moderators in SCALE data. The results indicate that the effect on criticality safety radiation transport modeling is minimal and that the file size burden is able to be significantly reduced. This new data storage will streamline SCALE data distribution and enable more efficient management of the SCALE code system and related nuclear data.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the Nuclear Criticality Safety Division 2025 Conference, NCSD 2025 |
| Publisher | American Nuclear Society |
| Pages | 196-202 |
| Number of pages | 7 |
| 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 |
|---|
Conference
| Conference | 2025 Nuclear Criticality Safety Division Conference, NCSD 2025 |
|---|---|
| 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 Nuclear Criticality Safety Program, funded and managed by the National Nuclear Security Administration for the Department of Energy. This work was also supported by the Nuclear Regulatory Commission Office of Research.
Keywords
- AMPX
- cross sections
- nuclear data
- SCALE
- thermal scattering
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