Data Evaluation of Actinide Cross Sections: ²⁴⁰Am, ²⁴¹Am, and ²⁴²Am

Technical Report · Thu Dec 20 04:00:00 EST 2018

DOI:https://doi.org/10.2172/1490943· OSTI ID:1490943

Ormand, W. E. ^[1]; Quaglioni, S. ^[1]; Jurgenson, E. ^[1]; Descalle, M. A. ^[1]; Thompson, I. J. ^[1]; Escher, J. E. ^[1]; Younes, W. ^[1]; Mattoon, C. M. ^[1]; Beck, B. ^[1]; Burke, J. T. ^[1]; Bailey, T. ^[1]

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

Evaluations for neutron-induced reactions on the isotopes ²⁴⁰Am, ²⁴¹Am, and ²⁴²Am were per formed by optimizing reaction-model calculations based on existing experimental data from both direct measurements and surrogate reactions. The evaluated data were based on results obtained from the LLNL reaction codes YAHFC and FRESCO using up-to-date nuclear models; including an improvement upon some previous treatments for inelastic processes. Nuclear reaction codes generated data for all relevant reaction channels, which were then translated into Generalized Nu clear Data Structure and LLNL’s Evaluated Neutron Data Libraries (ENDL). These data libraries were tested for potential errors and applied to verification and validation (V&V) tests suites where applicable for comparisons.

• 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: 1490943
• Report Number(s): LLNL-TR--763689; 953543
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
73 NUCLEAR PHYSICS AND RADIATION PHYSICS