Nuclear Data Center
Fission product yield sublibrary

The fission product yield sublibrary provides the evaluated nuclear data on neutron-induced and spontaneous fission yields for 31 and 10 nuclides, respectively. The data were compiled with the decay data sublibrary to keep the consistency between the number of nuclides contained in the decay data sublibrary and fission product yield sublibrary.
ENDF-6 format
Dec. 2021: First release (archive file).

Feb. 2022: Sublibrary and library version numbers were incorrect. The projectile mass for Am-242m was also incorrect. Fixed in update 2 (upd-2) on Feb. 16. (archive file).

Jul. 2022: Identifiers of fission product yield (ZAFP) for 14 MeV neutron FPY data were given incorrectly. Fixed in update 8 (upd-8) on Jul. 13.

Feb. 2023: Cumulative yields (CYs) of the original JENDL-5 were evaluated by letting all unstable nuclei decay. Alternatively, CYs calculated by letting the nuclei of T1/2<1000 y decay were made available on Feb. 27.

[Download] (updated in Jul. 2022)
Individual Nuclide Files
Compressed Archive File for All Nuclides (tar.gz)

[FPY data (CYs were calculated with nuclei of T1/2<1000 y)] (released in Feb. 2023)
Compressed Archive File for All Nuclides (tar.gz)
Note: Spontaneous fission product yield data of Cm-242 imported from JEFF-3.3 were not included.
[Covariance data of independent fission product yields]
Readme file
Compressed Archive File for All Nuclides (tar.gz)

Modified at 2023/04/05 13:45 [JST]

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