Nuclide Depletion Capabilities in the Shift Monte Carlo Code

Journal Article · 20 December 2017 · Annals of Nuclear Energy (Oxford)

DOI: https://doi.org/10.1016/j.anucene.2017.11.042 · OSTI ID:1429205

Davidson, Gregory G.  ^[1]; Pandya, Tara M.  ^[1]; Johnson, Seth R.  ^[1]; Evans, Thomas M.  ^[1]; Isotalo, Aarno E. ^[2]; Gentry, Cole A.  ^[1]; Wieselquist, William A.  ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
2. Aalto Univ., Otaniemi (Finland)

A new depletion capability has been developed in the Exnihilo radiation transport code suite. This capability enables massively parallel domain-decomposed coupling between the Shift continuous-energy Monte Carlo solver and the nuclide depletion solvers in ORIGEN to perform high-performance Monte Carlo depletion calculations. This paper describes this new depletion capability and discusses its various features, including a multi-level parallel decomposition, high-order transport-depletion coupling, and energy-integrated power renormalization. Several test problems are presented to validate the new capability against other Monte Carlo depletion codes, and the parallel performance of the new capability is analyzed.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: DOE Office of Science; USDOE
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1429205
• Alternate ID(s): OSTI ID: 1549012
• Journal Information: Annals of Nuclear Energy (Oxford), Journal Name: Annals of Nuclear Energy (Oxford) Vol. 114; ISSN 0306-4549
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English