Survey of Neutron Induced Fission Experimental and Evaluated Data for ²³³U, ²³⁸Pu, ²⁴⁰Pu, and ²⁴²Pu between 100 keV and 20 MeV

Technical Report · Fri Dec 12 00:00:00 EST 2025

DOI:https://doi.org/10.2172/3011272· OSTI ID:3011272

Sieverding, Andre ^[1]; Tonchev, Anton P. ^[1]; Quaglioni, Sofia ^[1]

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1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

We review data and evaluations for neutron-induced fission for the actinides ²³³U, ²³⁸Pu, ²⁴⁰Pu and ²⁴²Pu. These isotopes are part of common nuclear fuel cycles, especially for modern fast reactors. We focus on incident neutrons in the energy range of 100 keV to 20 MeV and compare the experimental data from the literature to the major evaluated libraries ENDF/B-VIII.1, JENDL-5, and JEFF-3.3, as well as to LLNL’s ENDL-2009.5 library. Based on the assessment of the fission cross sections, we provide recommendations on which library to use. Additional assessments covering other reaction channels will be provided separately.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 3011272
• Report Number(s): LLNL--TR-2011748-DRAFT
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
Physics - Nuclear physics and radiation physics