A test beam setup for the characterization of the Geiger-mode avalanche photodiode technology for particle tracking

Abstract

Keywords:The Geiger-mode avalanche photodiode (GAPD) CMOS EUDET/AIDA telescope Schottky detector Test beam Trigger logic unit (TLU). a b s t r a c tIt is well known that avalanche photodiodes operated in the Geiger mode above the breakdown voltage offer a virtually infinite gain and time accuracy in the picosecond range that can be used for single photon detection. However, their performance in particle detection still remains unexplored. In this contribution, we are going to expose different steps that we have taken in order to prove the efficiency of the Geiger mode avalanche photodiodes in the aforementioned field. In particular, we will present a setup for the characterization of these sensors in a test beam. The expected results of the test beam at DESY and CERN have been simulated with Geant4 and will also be exposed.

SPADs for Vertex Tracker detectors in Future Colliders

“…3. A complete description of the set-up can be found in [10]. During the beam-tests, the SPAD detector was operated with a short gated-on period of 30 ns and a low overvoltage of 1.2 V. The results obtained show a correlation between the SPAD detector and the telescope used for the calibration, which suggests that the SPAD technology can sense MIPs (Minimum Ionizing Particle).…”