Geant4 for Solving Nuclear Geophysics Problems

摘要

The results presented in this paper are based on computational experiments aimed at modeling nuclear well-logging tools. Well-logging services require not only development and characterization of nuclear logging tools but also development of algorithms for interpreting measured data with inclusion of various environmental corrections. With nuclear tools, the only feasible way of accomplishing those tasks is using computer simulations based on the radiation transport theory and Monte Carlo methods. Commonly, nuclear well-logging community uses the Monte Carlo N-Particle transport code (MCNP) for such modeling. However, MCNP is not universally available. Therefore, as an alternative, we consider the Geant4 platform developed under the auspices of European Organization for Nuclear Research (CERN) for modeling high-energy physics experiments. The results of various benchmarks of the amended version of Geant4 against MCNP5 are presented. These results clearly indicate that the modified version of Geant4 is capable of solving nuclear geophysics problems with the same accuracy as MCNP.