The role of graphical supporting tools for Monte Carlo analysis

The increasing power of computer systems continues to give users of the Monte Carlo method the ability to model complex three-dimensional systems in ever greater detail. In support of this more exacting use of the Monte Carlo method, three requirements have been identified: The need to demonstrate the validity of the geometry models employed; The need to easily interpret large volumes of calculation output; The need to prepare calculation data from a range of available options. The graphical tools summarised in this paper have been developed to address these requirements and are designed for use with the MONK and MCBEND Monte Carlo codes for criticality/reactor physics and radiation shielding/dosimetry/general radiation transport applications respectively. All codes described in this paper are licensed and actively supported in use by the ANSWERS Software Service of AEA Technology, with the development of several of the codes continuing within a partnership between AEA Technology and BNFL. (orig.)