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HK: Fachverband Physik der Hadronen und Kerne
HK 44: Instrumentation X
HK 44.3: Vortrag
Donnerstag, 13. März 2025, 14:30–14:45, SR Exp1B Chemie
Calibration Procedure of the START Detector for the HADES Experiment — •Henrik Flörsheimer1, Ashish Bisht4, Tetyana Galatyuk1,2,3, Mladen Kis2, Yevhen Kozymka1, Wilhelm Krüger1, Sergey Linev2, Jan Michel2, Jerzy Pietraszko2, Christian Joachim Schmidt2, Michael Träger2, Michael Traxler2, Felix Ulrich-Pur2, and Matteo Centis Vignali4 for the HADES collaboration — 1Technische Universität Darmstadt — 2GSI Helmholtzzentrum für Schwerionenforschung GmbH — 3Helmholtz Forschungsakademie Hessen für FAIR — 4Fondazione Bruno Kessler, Centre of Materials and Microsystems
HADES is a fixed-target experiment installed at SIS18 accelerator and addressing a very broad range of research topics based on studying reactions resulting from the interactions of pion, proton, and heavy ion beams with targets. A key component of particle identification is the time-of-flight measurement performed by the META detectors in combination with a reaction time detector (START). For the experiment with the proton beam, novel Low Gain Avalanche Detectors (LGAD) technology was used in HADES as a START detector. The detector consisted of two LGAD stations for high-precision start-time measurements with a precision below 100 ps and could be operated with rates of up to 108/s.
This talk will outline the START detector setup and the calibration steps needed to obtain the required performance. In addition, a possibility of improving the calibration procedure will be discussed.
Keywords: Low Gain Avalanche Diode; Time-of-flight; HADES; GSI