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HK: Fachverband Physik der Hadronen und Kerne
HK 35: Instrumentation VI
HK 35.7: Vortrag
Donnerstag, 19. März 2026, 15:30–15:45, PHIL A 301
Further Development of the Calibration Routine for the High-Voltage Regulation PCB for the PANDA Barrel Electromagnetic Calorimeter (EMC) — •Karl Simon Habermehl, Kai-Thomas Brinkmann, Hans-Georg Zaunick, and Aniko Tim Fenske for the PANDA collaboration — 2nd Physics Institute, Justus Liebig University, Giessen, Germany
The barrel section of the electromagnetic calorimeter (EMC) of the PANDA experiment at the future FAIR accelerator is designed to achieve excellent photon energy resolution over a wide dynamic range. To reach this level of precision, the various calorimeter subsystems (in particular the readout and front-end electronics) require careful optimization.
One of the most important components is the high-voltage distribution electronics (HVD), which supplies the avalanche photodiodes (APDs) with the bias voltages and therefore defines their gain. Since the performance of the HVD is temperature dependent and the operating temperature cannot be predicted accurately, it must be calibrated over a wide temperature range. For this purpose, a routine for series calibration of the HVD-PCBs has been developed. This contribution will give an impression of the currently running calibration procedure and foreseen improvements as well as some of the calibration results.
Supported by BMFTR, GSI and HFHF.
Keywords: PANDA; EMC; Front-End-Electronics; Calibration