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 was officially released on November 20, 2017.


NDEC analysis

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.


JEFF-3.3 Downloads

JEFF-3.3 is a thorough update of the neutron, decay data, fission yields and dpa libraries, and includes new thermal scattering files for some compounds.

Special sub-libraries for incident alphas, deuterons, gammas, helium-3, protons, tritons and activation files in the EAF format have been contributed by the TENDL-2017 library and adopted as part of the JEFF-3.3 release.



Neutron




Decay Data




Fission Yields




Alpha




Deuteron




DPA




Gamma




He-3




Proton




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