Joint Evaluated Fission and Fusion (JEFF) Library version 4.0 test 3
Welcome to the official release of the JEFF-4T3 library!
After our initial unofficial release in September 2023, we are thrilled to announce that JEFF-4T3 is now officially available as of February 2024. This release marks a significant milestone in our continuous efforts to provide accurate and reliable nuclear data to the scientific community.
For a comprehensive overview of the changes introduced in JEFF-4T3, we invite you to refer to this spreadsheet: JEFF-4 Evolution. It provides detailed insights into the modifications made.
Warning
Please note that this is a test library that has not been approved for formal release.
Fission Yields (FY)
Please be aware that only the conservative approach has been retained, and that the normalization error in fission yields has been addressed.
Each evaluation contains 4 files: - the FY evaluation in the ENDF6 format - the cumulative FY correlation matrix - the independent FY correlation matrix - a file describing how to read and use the correlation matrices
| Release | Format | Content | # files | Download |
|---|---|---|---|---|
| JEFF-4T3 | ENDF6 | Thermal fission of U-235 | 4 | Download |
| JEFF-4T3 | ENDF6 | Thermal fission of Pu-239 | 4 | Download |
Thermal Scattering Law (TSL)
JEFF-4T3 takes TSL from JEFF-3.3, with the exception of: - H in H2O: new evaluation by José Ignacio Marquez Damian - U in UO2 and O in UO2: new evaluation by Gilles Noguère (already available in JEFF-4T1) - Pu in PuO2 and O in PuO2: new evaluation by Gilles Noguère (already available in JEFF-4T1) - H and C in CH2 (Polyethylene): provided by ORNL - H and C in C8H8 (Polystyrene): provided by ORNL - H, C, and O in C5O2H8 (Lucite): provided by ORNL
| Release | Format | Content | # files | Download |
|---|---|---|---|---|
| JEFF-4T3 | ENDF6 | Thermal Scattering Law Evaluations (download all) | 29 | Download |
| JEFF-4T3 | ENDF6 | Thermal Scattering Law Evaluations (choose and download) | 29 | Link |
Neutron induced cross section evaluations
Changes compared to JEFF-4T2.2: - F-19, Si-28, Si-29, Si-30, Fe-56, Cu-63, Cu-65 are from INDEN - Eight-groups delayed neutron data were restored from JEFF-3.3 for Th-227, Th-229, U-232, U-236, Np-238, Pu-242, Am-242m, Am-243, Cf-249, Cf-251 - The gamma decay cascade for inelastic scattering (MF12 and MF14) was completed whenever necessary - B-9 and Be-10 are taken from TENDL-2023, as they were missing in previous versions of JEFF - New evaluations for Ar-36,38, V-51, Xe-124,126,128-132,134,136, Pm-147, Bi-209, U-235,236,238, Np-238, Pu-239,240,241 - All TENDL-2021 files have been replaced with the latest TENDL-2023 data, with the exception of Np-237 - All JENDL-4 files have been replaced with the latest JENDL-5 data - Minor typos and format issues were corrected
For a comprehensive overview of the changes, please refer to the following spreadsheet: JEFF-4 Evolution.
| Release | Format | Code | Content | # files | Download |
|---|---|---|---|---|---|
| JEFF-4T3 | ENDF6 | - | Cross section evaluations (download all) | 567 | Download |
| JEFF-4T3 | ENDF6 | - | Cross section evaluations (choose and download) | 567 | Link |
| JEFF-4T3 | ACE | NJOY2016.56 | Continuous-energy cross section data | 567 | Download |
| JEFF-4T3 | Text | - | XSDIR for MCNP | 1 | Download |
| JEFF-4T3 | GENDF-1102 | NJOY2016.56 and PREPRO2021 | Groupwise cross section data | 567 | Download |
| JEFF-4T3 | HDF5 | NJOY2016.56 and OPENMC | Continuous-energy cross section data | 567 | Download |
| JEFF-4T3 | XML | FUDGE-6.2.0 | Cross section evaluations + covariance data | 967 | Download |
| JEFF-4T3 | XML | FUDGE-6.2.0 | List of files for which the FUDGE processing failed | 1 | Download |
| JEFF-4T3 | NJOY2016.56 and PREPRO2021 | Plots (choose and download) | 1701 | Link | |
| JEFF-4T3 | Excel | NEA Pipeline | Status of the pipeline for each isotope | 1 | Download |