2020 **Abstract:** CLARK, ALEXANDER RICH. Application of Neutron Multiplicity Counting Experiments to Optimal Cross Section Adjustments. (Under the direction of John Mattingly.) This dissertation presents the first application of model calibration to neutron multiplicity counting (NMC) experiments for cross section optimization that utilizes adjoint-based sensitivity analysis (SA) and first-order uncertainty quantification (UQ). We summarize previous work on SA applied to NMC and describe notable additions. We give the procedure…

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“…94 These RTOs also often involve spherical configurations with 25 [95][96][97] and 49. [98][99][100][101][102] Modern experiments still have goals to provide measured results for improvements in nuclear data (such as the ν − 1 − α results in Table 2).…”

confidence: 99%

“…94 These RTOs also often involve spherical configurations with 25 [95][96][97] and 49. [98][99][100][101][102] Modern experiments still have goals to provide measured results for improvements in nuclear data (such as the ν − 1 − α results in Table 2).…”

confidence: 99%

“…SENSMG can compute first-order sensitivities of the Feynman Y and Sm2 parameters with respect to cross sections, nuclide densities, material densities, and interface locations. 42 It should be repeated (from Sec. I) that direct perturbations to estimate derivatives and brute-force sampling for parameter studies are also sensitivity analysis techniques.…”

confidence: 99%

“…30. These are available for two isotopes: U-233 and Pu-241.The general form for the relative sensitivity of C2 to input parameter g x in group g is6…”

mentioning

confidence: 99%