Review of Monte Carlo all-particle transport codes and overview of recent MCNPX features

Abstract

Several Monte Carlo all-particle transport codes are under active development around the world. A high-level capability review of these transport codes is provided. Furthermore, an overview of recent features that are of interest to fast neutron detection and applications is given for one of these codes, namely MCNPX. MCNPX is the Monte Carlo N-Particle eXtended version of MCNP4C that has been under continuous development for more than a decade. In addition to all of the MCNP4C capabilities, MCNPX can transport 34 different particle types up to the teravolt energy range. In this paper we focus on a subset of the twenty-eight new features developed since the release of MCNPX 2.4.0 and included in the release of 2.5.0.