Aug 17 – 19, 2021
Europe/Zurich timezone

Allpix Squared Simulations of Multi-element Germanium Detectors for Synchrotron Applications

Aug 19, 2021, 2:20 PM


Tasneem SALEEM (SOLEIL Synchrotron)


One of the major limitations of the X-ray Absorption Spectroscopy (XAS) experiment at synchrotron facilities is the performance of the detectors. In order to be able to measure more challenging samples and to cope with the very high photon flux and input count rate of the current and future light sources, technological developments to enhance the performance of various
detectors are necessary. A new generation of monolithic multi-element detectors with hexagonal pixels have been proposed for XAS applications mainly to maximize the compactness and granularity of the traditional multi-element germanium detectors. In order to study detector performance, several configurations of the
new generation of multi-element germanium detectors have been simulated.
A simulation chain combining Allpix Squared simulation with 3D electrostatic field simulation performed with COMSOL Multiphysics® has been used. As Allpix Squared is dedicated to the simulation of silicon detectors, a special derived version of Allpix Squared has been developed and used to simulate germanium detectors as well as hexagonal pixel geometries. In this talk, several simulation examples to study the performance of simulated multi-element germanium detector will be shown. These simulations help to build a trusted simulation model to be used in studying variant hexagonal shaped germanium detector for future applications.

Primary author

Tasneem SALEEM (SOLEIL Synchrotron)

Presentation materials