Work

Development of an Adjoint Flux Calculation Technique for Exact Perturbation Theory in Monte Carlo Code MCS

Year: 2024

Type: article

Abstract: A calculation technique computing the adjoint flux of perturbed system is developed for the exact perturbation theory in Monte Carlo transport. By using a correlated sampling and iterated fission probability methods together, the adjoint flux of perturbed system is calculated during a forward Mote Carlo simulation of an unperturbed system. In the method, no additional particle simulation is required to compute the adjoint flux of perturbed system. The exact perturbation method is implemented in the Monte Carlo code MCS. The results of perturbation method for k-eigenvalue change are compared against differential operator sampling, adjoint-weighted perturbation, and direct perturbation methods for the Godiva benchmark and PLUS7 fuel assembly.

Source: Springer Link (Chiba Institute of Technology)

DOI: 10.1051/epjconf/202430210003/pdf

Authors: Yunki Jo, Deokjung Lee

Institution: Ulsan National Institute of Science and Technology

Language: English

Topic: Nuclear reactor physics and engineering

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: Ministry of Trade, Industry and Energy, Korea Institute of Energy Technology Evaluation and Planning

Awards: G3436052317, G501279973