Homework #10 Geant4 Simulations for Compton Scattering in Aluminum

Compton scattering models in Geant4 are the following: a.) G4ComptonScattering: listed as ”compt” in the process name. No Rayleigh scattering in the model. b.) G4LowEnergyCompton: Process name is ”LowEnCompton” in the tracking code. It has errors in the treatment of Rayleigh scattering and does not account for Doppler broadening (the effect of bound electron momentum on the scattered particle energies). c.) G4LECS: Bound electron effects are corrected on ”shell-by-shell” basis. Rayleigh scattering is modeled using the coherent scattering cross section and form factor data. The Doppler broadening effect is included. Scattering of 100 keV photons in aluminum was simulated using the first two models described above. The only process that was turned on for photons was either ”compt” or ”LowEnCompton”. The number of incident particles