EUDET Telescope

This example demonstrates the simulation of EUDET-type Beam Telescopes, making use of the ProjectionPropagation module and approximated simulation and sensor parameters tuned to measurements.

The simulation setup represents a beam telescope consisting of six Mimosa26 sensors, MAPS sensors with a small depletion zone. The thickness used herein is 50 um.

The particle propagation and charge deposition are performed via the DepositionGeant4 module, using an electron beam with an energy of 5 GeV. A standard physics list is chosen.

The electric field of the sensor is approximated with a depletion depth of 15 um and a bias voltage of -4 V.

The charge collection in such sensors is heavily influenced by the charge carriers that are not created in, but diffuse into the depleted volume, often with a strong lateral component leading to cluster sizes larger than one. To approximate this behaviour and obtain a realistic detector response, while simultaneously maintaining a low simulation time, the diffuse_deposit parameter of the ProjectionPropagation module is used. An integration time of 20 ns is used as an approximation, tuned to experimental data.

The digitization parameters correspond to information from the sensor developers.