Comparison of the Monte Carlo Adjoint-Weighted and Differential Operator Perturbation Methods

Conference · Sun Oct 17 04:00:00 EDT 2010 · Progress in Nuclear Science and Technology

DOI:https://doi.org/10.15669/pnst.2.836· OSTI ID:1025894

Kiedrowski, Brian C. ^[1]; Brown, Forrest B. ^[1]

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1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Two perturbation theory methodologies are implemented for k-eigenvalue calculations in the continuous-energy Monte Carlo code, MCNP6. A comparison of the accuracy of these techniques, the differential operator and adjoint-weighted methods, is performed numerically and analytically. Typically, the adjoint-weighted method shows better performance over a larger range; however, there are exceptions.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1025894
• Report Number(s): LA-UR--10-05215; LA-UR--10-5215
• Conference Information: Journal Name: Progress in Nuclear Science and Technology Journal Volume: 2
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
97 MATHEMATICS AND COMPUTING
ACCURACY
Accuracy Comparisons
Adjoint-Weighted Method
COMPUTERS
CRITICALITY
DESIGN
Differential Operator Method
MCNP6
MONTE CARLO METHOD
Nuclear Criticality Safety Program (NCSP)
PERFORMANCE
PERTURBATION THEORY
Perturbation Theory Methodologies