Monte Carlo simulation of the ARGO

We use GEANT Monte Carlo code to design an outline of the geometry and simulate the performance of the ARgentine Gamma-ray Observer (ARGO), a telescope based on silicon strip detector technlogy. ray direction is determined by geometrical means and the angular resolution is calculated for small variations of the basic design. sults show that the angular resolutions vary from a few degrees at low energies (∼50 MeV) to 0.2°, approximately, at high energies (> 500 MeV). We also made simulations using as incoming γ-ray the energy spectrum of PKS0208 − 512 and PKS0528 + 134 quasars. er, a method based on multiple scattering theory is also used to determine the incoming energy. We show that this method is applicable to energy spectrum.