2019
DOI: 10.3390/en12214219
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Abstract: The subcritical polyethylene-reflected plutonium (PERP) metal fundamental physics benchmark, which is included in the Nuclear Energy Agency (NEA) International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbook, has been selected to serve as a paradigm illustrative reactor physics system for the application of the Second-Order Adjoint Sensitivity Analysis Methodology (2nd-ASAM) that was developed by Cacuci. The 2nd-ASAM enables the exhaustive deterministic computation of the exact values of the … Show more

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Cited by 30 publications
(165 citation statements)
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“…As described in Part I [1], the neutron flux is computed by solving numerically the neutron transport equation using the PARTISN [11] multigroup discrete ordinates transport code. These PARTISN [11] computations were performed using the MENDF71X 618-group cross sections [12] collapsed to G = 30 energy groups, with group boundaries, E g , as presented in [1]. The MENDF71X library uses ENDF/B-VII.1 Nuclear Data [13].…”
Section: Computation Of 1st-and 2nd-order Sensitivities Of the Perp Lmentioning
confidence: 99%
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“…As described in Part I [1], the neutron flux is computed by solving numerically the neutron transport equation using the PARTISN [11] multigroup discrete ordinates transport code. These PARTISN [11] computations were performed using the MENDF71X 618-group cross sections [12] collapsed to G = 30 energy groups, with group boundaries, E g , as presented in [1]. The MENDF71X library uses ENDF/B-VII.1 Nuclear Data [13].…”
Section: Computation Of 1st-and 2nd-order Sensitivities Of the Perp Lmentioning
confidence: 99%
“…In Equations (4) and (5), the subscript "i" is the number of nuclides with spontaneous fission source. In Equation (1), the vector α denotes the "vector of imprecisely known model parameters", which has been defined in Part I [1] as α σ t ; σ s ; σ f ; ν; p; q; N † , with vector-components σ t , σ s , σ f , ν, p, q and N, which comprise the various model parameters for the microscopic total cross sections, scattering cross sections, fission cross sections, average number of neutrons per fission, fission spectra, sources, and isotopic number densities, respectively. For convenient reference, the components of the vector of model parameters α are reproduced in Appendix A.…”
Section: Computation Of 1st-and 2nd-order Sensitivities Of the Perp Lmentioning
confidence: 99%
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