Speaker
Description
Allpix Squared is a versatile, open-source simulation framework for silicon pixel detectors. Its goal is to ease the implementation of detailed simulations for both single sensors and more complex setups with multiple detectors. While originally created for silicon detectors in high-energy physics, it is capable of simulating a wide range of detector types for various application scenarios, e.g. through its interface to Geant4 to describe the interaction of particles with matter, and the different algorithms for charge transport and digitization. The simulation chain is arranged with the help of intuitive configuration files and an extensible system of modules, which implement the individual simulation steps. Detailed electric field maps imported from TCAD simulations can be used to accurately model the drift behavior of charge carriers, and an implementation of the Shockley-Ramo
theorem enables time-resolved signal formation studies, adding a new level of detail to Monte Carlo simulations of particle detectors.
Recently, Allpix Squared has seen major improvements to its core framework to take full advantage of multi- and many-core processor architectures for simulating events fully parallel. Furthermore, new sensor geometries such as hexagonal pixels have been introduced, further extending the application range. This seminar provides an overview of the framework and its components, highlighting the versatility and some of the recent developments.
