Matrix nuclear radiation GaAs detectors simulation

摘要

Using computer programs Elmer FEM Solver for calculating electric fields and Geant4 for the passage simulation of particles through matter, calculations of charge collection efficiency for nuclear radiation matrix detector based on GaAs p-i-n diodes with different distances between pixels 110 microns and 50 microns were made. Based on data obtained detector structure optimization solution, which improves energy resolution, is proposed.