JEF-2.2 Evaluated Data: fission product yields data

This latest version of the fission product yields library for JEF-2.2 was provided in Tape 24 and was released in June 1993. The data are based on the UK Fission Product Yield library version 2 (UKFY2).

The library contains 39 sets of independent and cumulative yields for 21 fissile nuclies summarised in the table below. Nuclide Thermal (0.0253 eV incident neutron) Fast (approximated as 400 keV incident neutron) High-energy (14.7 MeV incident neutron) Spontaneous fission 90-Th-232 Yes Yes 92-U-233 Yes Yes Yes 92-U-234 Yes 92-U-235 Yes Yes Yes 92-U-236 Yes 92-U-238 Yes Yes 93-Np-237 Yes Yes 93-Np-238 Yes Yes 94-Pu-238 Yes Yes 94-Pu-239 Yes Yes 94-Pu-240 Yes 94-Pu-241 Yes Yes 94-Pu-242 Yes 95-Am-241 Yes Yes 95-Am-242m Yes Yes 95-Am-243 Yes Yes 96-Cm-242 Yes 96-Cm-243 Yes Yes 96-Cm-244 Yes Yes Yes 96-Cm-245 Yes Yes 98-Cf-252 Yes