17–21 Jun 2024
CERN
Europe/Zurich timezone

Allpix Squared - Semiconductor Detector MC Simulations for Particle Physics and Beyond

20 Jun 2024, 15:00
20m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
Show room on map
WG4 - Simulations WG4 - Simulations

Speaker

Simon Spannagel (Deutsches Elektronen-Synchrotron (DE))

Description

Allpix Squared is a versatile, open-source simulation framework for semiconductor detectors. It enables detailed numerical simulations for both single sensors and more complex setups with multiple detectors. While originally developed for silicon pixel detectors in high-energy physics, it is capable of simulating a wide range of detector types, semiconductor materials, and geometries for a variety of different application scenarios. It has a wide user base, good documentation, and an active community participating actively in the forum and the yearly workshops.

The framework is based on an extensible system of modules that implement the individual simulation steps. The modules include an interface to Geant4 for describing the interaction of particles with matter, various algorithms for charge transport in the sensor, and for digitizing the signals in the front-end electronics. Detailed field, potential, and doping maps imported from TCAD simulations can be used to accurately model the motion and recombination behavior of charge carriers. The framework comes with a variety of mobility, recombination and trapping models as well as impact ionization for low-gain applications.

This presentation gives an overview of the framework and its components, and highlights recent developments. It also points out the various possibilities to contribute to the project, along with the relevant developer documentation.

Type of presentation (in-person/online) online presentation (zoom)
Type of presentation (scientific results or project proposal) Presentation on scientific results

Authors

Håkan Wennlöf (Deutsches Elektronen-Synchrotron (DE)) Paul Schütze (Deutsches Elektronen-Synchrotron (DE)) Simon Spannagel (Deutsches Elektronen-Synchrotron (DE))

Presentation materials