American Nuclear Society
Home

Home / Publications / Journals / Nuclear Science and Engineering / Volume 199 / Number 1S

Development of a Coupled Depletion Perturbation Theory Methodology in Continuous-Energy Monte Carlo Depletion Simulations

Benjamin R. Murphy, Christopher M. Perfetti

Nuclear Science and Engineering / Volume 199 / Number 1S / April 2025 / Pages S435-S450

Research Article / dx.doi.org/10.1080/00295639.2024.2332010

Received:November 6, 2023
Accepted:March 13, 2024
Published:April 30, 2025

This work develops a depletion perturbation theory methodology coupled with generalized perturbation theory to produce fully coupled nuclide number density sensitivity coefficients for cross sections, initial nuclide number densities, and decay constants. The method is implemented into OpenMC, a high-fidelity Monte Carlo simulation code, utilizing continuous-energy cross sections to produced high resolution sensitivity coefficients over the energy spectrum.