Review of Early 21st-Century Monte Carlo Perturbation and Sensitivity Techniques for k-Eigenvalue Radiation Transport Calculations

BC Kiedrowski - Nuclear Science and Engineering, 2017 - Taylor & Francis
Abstract Since the 1960s, Monte Carlo methods have been used to compute the effect of
perturbations on system responses and for computing sensitivity coefficients. This review …

Adjoint-Based k-Eigenvalue Sensitivity Coefficients to Nuclear Data Using Continuous-Energy Monte Carlo

BC Kiedrowski, FB Brown - Nuclear science and Engineering, 2013 - Taylor & Francis
A continuous-energy Monte Carlo method is developed to compute adjoint-based k-
eigenvalue sensitivity coefficients with respect to nuclear data. The method is implemented …

Development of a generalized perturbation theory method for sensitivity analysis using continuous-energy Monte Carlo methods

CM Perfetti, BT Rearden - Nuclear Science and Engineering, 2016 - Taylor & Francis
The sensitivity and uncertainty analysis tools of the Oak Ridge National Laboratory SCALE
nuclear modeling and simulation code system that have been developed over the last …

Continuous-energy monte carlo methods for calculating generalized response sensitivities using tsunami-3d

CM Perfetti, BT Rearden - 2014 - osti.gov
This work introduces a new approach for calculating sensitivity coefficients for generalized
neutronic responses to nuclear data uncertainties using continuous-energy Monte Carlo …

Memory-efficient calculations of adjoint-weighted tallies by the Monte Carlo Wielandt method

SH Choi, HJ Shim - Annals of Nuclear Energy, 2016 - Elsevier
Abstract The current Monte Carlo (MC) adjoint-weighted tally techniques based on the
iterated fission probability (IFP) concept require a memory amount which is proportional to …

Development of generalized perturbation theory algorithms for Monte Carlo eigenvalue calculations

SH Choi, HJ Shim, CH Kim - Nuclear Science and Engineering, 2018 - Taylor & Francis
A generalized perturbation theory (GPT) formulation suited for the Monte Carlo (MC)
eigenvalue calculations is newly developed to estimate sensitivities of a general MC tally to …

Calculation of adjoint-weighted reactor kinetics parameters in OpenMC

X Peng, J Liang, B Forget, K Smith - Annals of Nuclear Energy, 2019 - Elsevier
Abstract Knowledge of adjoint-weighted kinetics parameters plays an importance role in
analyzing the reactor safety and in describing the transient behavior of nuclear reactors …

[PDF][PDF] Determining importance weighting functions for Contributon theory eigenvalue sensitivity coefficient methodologies

CM Perfetti, WR Martin, BT Rearden… - … of PHYSOR 2012, 2012 - researchgate.net
This study introduced two new approaches for calculating the importance weighting function
for Contributon and CLUTCH eigenvalue sensitivity coefficient calculations, and compared …

Monte Carlo sensitivity and uncertainty analysis with continuous-energy covariance data

DH Lee, HJ Shim, CH Kim - Nuclear Science and Engineering, 2017 - Taylor & Francis
Abstract The continuous-energy Monte Carlo (MC) sensitivity and uncertainty (S/U) analysis
conducted using the multigroup covariance matrices has a theoretical pitfall in that it is …

[PDF][PDF] Methodology for Sensitivity and Uncertainty-Based Criticality Safety Validation

BC Kiedrowski - 2014 - mcnp.lanl.gov
Monte Carlo radiation transport software is used extensively for determining the effective
multiplication factor k of fissionable systems towards assessing the criticality safety of …