Source Measurement

This example simulates an Iron-55 source using Geant4’s radioactive decay simulation. The particle type is set to Fe55 to use the isotope, the source energy configured as 0eV for a decay in rest. A point-like particle source is used.

A Medipix-type detector is placed below the source, shielded with an additional sheet of aluminum with a thickness of 8mm. No misalignment is added but the absolute position and orientation of the detector is specified.

The setup of the simulation chain follows the “fast simulation example: The charge deposition is performed by Geant4 using a standard physics list and a stepping length of 10um. The ProjectionPropagation module with a setting of charge_per_step = 100 is used to simulate the charge carrier propagation and the simulation result is stored to file excluding DepositedCharge and PropagatedCharge objects to keep the output file size low.