Subcritical neutron noise measurements for plutonium systems with varying geometry and mass
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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS↗
Engineering topics
Clark, Alexander R.
Publications and source records attributed to Clark, Alexander R..
Verification and Validation of the New MCNP6.3 Criticality Features [Slides]
This presentation touches on a separate MCNP6.3 V&V document reports on all the default calculations for all test suites. Here, we look at new optional features of the MCNP6.3 code with Fission-matrix-based options, Convergence and population testing, and Automated acceleration of the fission source additionally Doppler Broadening Resonance Correction. Also touched on are validation benchmarks: criticality, crit_expanded, and Rossi-α. All the new MCNP6.3 options give statistically equivalent results and either provide a reduction or no change in computational cost. We consider giving these new features a try and using them for all criticality calculations.
97 MATHEMATICS AND COMPUTING↗
Computing Upper Subcritical Limits via Whisper using ENDF/B-VIII.0 Nuclear Data [Slides]
This presentation covers motivation and updating benchmark inputs to compute sensitivities. This lecture then moves into obtaining covariances in ACE format and a BLO- vs ENDF/B-VIII.0-calculated USL comparison. This presentation finishes with conclusions along with Future work and outlook.
97 MATHEMATICS AND COMPUTING↗