JEFF-3.3 Evaluated Data: neutron data

It provides general-purpose evaluated nuclear data for reactor physics, fusion technology, shielding, criticality safety, and other applications. The library contains neutron-induced reaction data for 562 isotopes, fission yields, thermal scattering law data, and decay data, based on contributions from the JEFF project and international partners.

Data were processed and verified using modern nuclear data codes and benchmarked against extensive integral experiments to ensure quality and reliability. JEFF-3.3 remains widely used for both research and industrial applications across Europe and internationally.