Input preprocessor for creating MCNP models for use in developing large calculational databases

With the rapid increase in workstation performance in the last decade, computational power is no longer the limiting factor for using Monte Carlo modeling to design and characterize nuclear well-logging tools. Instead, the development of tool models, modification of tool models, and the interpretation of computational results limit the throughput of MCNP modelers. A new software program called MCPREP has been developed that greatly increases the productivity of nuclear modelers in the development of large calculational databases. In addition, the use of the preprocessor can improve quality control of the modeling effort, can allow novice modelers to run complex and realistic problems, and can decrease the post-processing of the MCNP output files