Regular Article

MC21 v.10 – coupled-radiation Monte Carlo transport solver with support for multiphysics simulations

Naval Nuclear Laboratory, Pittsburgh, Pennsylvania, United States

^* e-mail: david.griesheimer@unnpp.gov

Received: 15 June 2024
Received in final form: 23 September 2024
Accepted: 16 October 2024
Published online: 11 December 2024

Abstract

Over the past decade, the development of the MC21 Monte Carlo radiation transport solver has focused on extending the functionality of the code beyond static calculations of reactivity and reaction rate distributions, as well as improving accuracy, performance, and scalability. Notable improvements include enhanced interaction physics models, efficient model representation and tracking algorithms, support for coupled physics calculations using both in-line and externally coupled feedback modules, and the development of native visualization and results post-processing tools. As a result of these improvements, MC21 v.10 provides a comprehensive analysis framework that allows complicated engineering problems to be solved with minimal reliance on external tools.