The JEFF suite of nuclear data libraries contains a number of different data types, including neutron and proton interaction data, radioactive decay data, fission yields data, and thermal scattering law data.
The JEFF-3.3 nuclear data library has been officially released in November 2017. It includes a thorough update to its neutron, decay data and fission yields library and adopts other sub-libraries (incident proton, alpha, gamma, triton, He-3 and deuteron) from TENDL-2017. Access the JEFF-3.3 release.
The JEFF project meets twice a year, in spring and fall, during the NEA Nuclear Data Week in a 4 to 5 day technical programme, with the aim to promote co-operation between experimentalists, evaluators and end-users of nuclear data involved in both projects.
For more information on JEFF activities please contact Franco Michel-Sendis at NEA.
The Joint Evaluated Fission and Fusion File (JEFF) is an evaluated library produced via an international collaboration of NEA Data Bank participating countries.
JEFF-3.3 is a thorough update of the neutron, decay data, fission yields, dpa and neutron activation libraries in the EAF format, with neutron thermal scattering files for 20 compounds. Special sub-libraries for incident alphas, deuterons, gammas, helium-3, protons and tritons have been contributed by the TENDL-2017 library and adopted as part of the JEFF-3.3 release. JEFF-3.3 was officially released on November 20, 2017.
| Release | Format | Type | Content | Modified | Size | Download |
|---|---|---|---|---|---|---|
| Evaluated files | ||||||
| JEFF-3.3 | ENDF-6 | Neutron | 562 incident neutron isotopic evaluations | 2018-01-09 15:39 | 448M | |
| JEFF-3.3 | ENDF-6 | Neutron TSL | 20 evaluations for 20 compounds More info... |
2017-12-18 15:30 | 34M | |
| Processed files | ||||||
| JEFF-3.3 | ACE | Neutron | CE, 293K | 2018-12-10 14:52 | 1.2G | |
| JEFF-3.3 | ACE | Neutron | CE, 600K | 2018-12-10 15:05 | 1.2G | |
| JEFF-3.3 | ACE | Neutron | CE, 900K | 2018-12-10 15:11 | 1.1G | |
| JEFF-3.3 | ACE | Neutron | CE, 1200K | 2018-12-12 12:08 | 1.1G | |
| JEFF-3.3 | ACE | Neutron | CE, 1500K | 2018-12-10 15:42 | 1.1G | |
| JEFF-3.3 | ACE | Neutron | CE,1800K | 2018-12-10 16:07 | 1.1G | |
| JEFF-3.3 | ACE | Neutron TSL | CE, All Temperatures available More info... |
2018-12-10 14:30 | 884M | |
| XSDIR files | ||||||
| JEFF-3.3 | XSDIR | XSDIR file | For all temperatures above and TSLs | 2019-02-15 14:19 | 262K | |
| Neutron activation files | ||||||
| JEFF-3.3 | EAF | Neutron activation | 2797 files | 2018-3-26 16:58 | 275M | |
| JEFF-3.3 | EAF | Neutron activation covariance Files | 2797 files | 2018-3-26 16:57 | 9.8M | |
| JEFF-3.3.1 | EAF | Neutron activation | 211g, All TENDL isotopes | 2019-12-11 11:40 | 55M | |
| JEFF-3.3.1 | EAF | Neutron activation | 211g, Subset of EAF isotopes only | 2019-12-11 11:40 | 13M | |
| JEFF-3.3.1 | EAF | Neutron activation | 709g, All TENDL isotopes | 2019-12-11 11:40 | 85M | |
| JEFF-3.3.1 | EAF | Neutron activation | 709g, Subset of EAF isotopes only | 2019-12-11 11:40 | 20M | |
NDEC is the Data Bank’s Nuclear Data Service platform for the automated verification, processing and content analysis of evaluated nuclear data files and libraries.
