Performance Monitoring of the Barrel Time-of-Flight Super-Module for the PANDA Experiment at FAIR
S. Chesnevskaya, S. Zimmermann, J. Zmeskal
The PANDA experiment at FAIR in Darmstadt will use proton-antiproton collisions, with momenta ranging from 1.5 GeV/c to 15 GeV/c, on a fixed target to study open questions in hadron physics. The Barrel Time-of-Flight detector for this experiment is a scintillating tile hodoscope based on 16 identical and independent subdetectors called Super-Modules arranged in a cylindrical configuration. Extensive studies of the performance of one such Super-Module have been carried out to prove the feasibility of of the Barrel Time-of-Flight detector design. Time resolution, signal delay and amplitude drop along the length of the detector were measured and analyzed as a function of the position on the individual scintillator tiles. An excellent time resolution of about 50 ps has been achieved, which is very important for event timing and particle identification.