Joint Evaluated Fission and Fusion File

The JEFF Official Releases page is a public portal for the NEA GitLab Joint Evaluated Fission and Fusion Library. It provides links to evaluated and processed nuclear data files developed on the NEA GitLab, including the JEFF-4.0 library released in June 2025 and older JEFF data libraries released between 1986 and 2017. Restricted content is hosted on GitLab repositories and data pipelines.

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0 shouts Added Sep 23, 2026 databank.io.oecd-nea.org
databank.io.oecd-nea.org/data/jeff/jeff_official/
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