GEANT4 TARGET SIMULATIONS FOR

The GEANT4 code offers an extensive set of hadronic models for various projectiles and energy ranges. These models include theoretical, parameterized and, for low en- ergy neutrons, data driven models. Theoretical or semi- empirical models sometimes cannot reproduce experimen- tal data at low energies (<100MeV), especially for low Z elements, and therefore recent GEANT4 developments included a new particle hp package which uses evaluated nuclear databases for proton interactions below 200MeV. These recent developments have been used to study target designs for low energy proton accelerators, as replacements of research reactors, for medical applications. Presented in this paper are results of benchmarking of these new mod- els for a range of targets, from lithium neutron production targets to molybdenum isotope production targets, with ex- perimental data.