  We evaluate the cosmogenic production rates in some materials that are
commonly used as targets and shielding/supporting components for detecting rare
events. The results from Geant4 simulations are compared with the calculations
of ACTIVIA and the available experimental data. We demonstrate that the
production rates from the Geant4-based simulations agree with the available
data reasonably well. As a result, we report that the cosmogenic production of
several isotopes in various materials can generate potential backgrounds for
direct detection of dark matter and neutrinoless double-beta decay.
