The joint evaluated fission and fusion nuclear data library, JEFF-3.3

Research output: Contribution to journalArticlepeer-review


Institutes & Expert groups

  • CEA Cadarache - Commissariat à l'Énergie Atomique
  • CEA Saclay - Commissariat à l'énergie atomique
  • EC - JRC - European Commission - Joint Research Centre
  • UPM - Universidad Politécnica de Madrid
  • OECD NEA - Nuclear Energy Agenc
  • UKAEA - UK Atomic Energy Authority
  • IFIC - Instituto de Física Corpuscular
  • ATOMKI - Institute of Nuclear Research of the Hungarian Academy of Sciences

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The joint evaluated fission and fusion nuclear data library 3.3 is described. New evaluations for neutron induced interactions with the major actinides 235U, 238U and 239Pu, on 241Am and 23Na, 59Ni, Cr, Cu, Zr, Cd, Hf, W, Au, Pb and Bi are presented. It includes new fission yields, prompt fission neutron spectra and average number of neutrons per fission. In addition, new data for radioactive decay, thermal neutron scattering, gamma-ray emission, neutron activation, delayed neutrons and displacement damage are presented. JEFF-3.3 was complemented by files from the TENDL project. The libraries for photon, proton, deuteron, triton, helion and alpha-particle induced reactions are from TENDL-2017. The demands for uncertainty quantification in modeling led to many new covariance data for the evaluations. A comparison between results from model calculations using the JEFF-3.3 library and those from benchmark experiments for criticality, delayed neutron yields, shielding and decay heat, reveals that JEFF-3.3 performs very well for a wide range of nuclear technology applications, in particular nuclear energy.


Original languageEnglish
Article number181
Pages (from-to)1-108
Number of pages108
JournalThe European Physical Journal A
Publication statusPublished - 14 Jul 2020


  • JEFF-3.3, Nuclear data, Evaluation, Benchmarking, Validation

ID: 6868950