Validation of New MCNP6.3 Features for Critical and Subcritical Benchmark Simulations [Slides]

Conference · Wed Sep 20 04:00:00 EDT 2023

DOI:https://doi.org/10.2172/2205633· OSTI ID:2205633

Rising, Michael E. ^[1]; Clark, Alexander ^[1]; Whitman, Nicholas ^[1]; Hutchinson, Jesson ^[1]

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

A separate MCNP6.3 V&V document reports on all the default calculations for all test suites was introduced. Here, we look at new optional features of the MCNP6.3 code. Then, Fission-matrix-based options with Convergence and population testing and Automated acceleration of the fission source and Doppler Broadening Resonance Correction and HDF5 Particle Track Output (PTRAC) and Validation benchmarks: criticality, Rossi-α, and subcritical multiplication. All the new MCNP6.3 options give statistically equivalent results and should be considered for default usage in criticality and subcritical multiplication calculation work. Discussed are two separate papers at the upcoming 2023 International Conference on Nuclear Criticality Safety (ICNC 2023) that give more details on the results presented here.

• 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: 89233218CNA000001
• OSTI ID: 2205633
• Report Number(s): LA-UR--23-30558
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
Analytical Methods
HDF5 Particle Track Output (PTRAC)
MCNP6.3
Nuclear Criticality Safety Program (NCSP)
V&V Document