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HK: Fachverband Physik der Hadronen und Kerne

HK 13: Instrumentation IV

HK 13.5: Vortrag

Dienstag, 21. März 2023, 18:00–18:15, SCH/A251

Series calibration of the slow-control of the barrel part of the PANDA EMC front-end electronics* — •Christopher Hahn — Justus Liebig Universität, Giessen, Deutschland

The Electromagnetic Calorimeter (EMC) inside a 2T solenoid will be the main component of the upcoming PANDA experiment at the future FAIR complex in Darmstadt. Due to the targeted energy resolution, timing and spatial constraints, the individual high-voltage adjustments for the Large Area Avalanche Photodiodes (LAAPDs) demands innovative and customized electronics, such as, for example, the individual bias voltage adjustments for the Photodiodes with an accuracy of 0.1V or better. In the same time, no space can be occupied in the inner detector volume for individual cable routing and connections for the LAAPD bias voltage. The key elements of the high-voltage adjustment concept and the frontend electronics as well as environmental dependencies will be described. The first results of the calibration of the high-voltage distribution and the resulting calibration algorithm will be presented. *supported by BMBF, GSI und HFHF.