SMuK 2023 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 74: Poster

HK 74.36: Poster

Donnerstag, 23. März 2023, 17:30–19:00, HSZ EG

Noise Calibration of the ALICE-TRD in Run03 — •Archita Rani Dash for the ALICE Germany collaboration — Westfälische Wilhelms- Universität Münster

The ALICE Transition Radiation Detector (TRD) provides excellent electron identification and is part of the global tracking in the central barrel of ALICE. The operation data taking and the calibration of the ALICE TRD is one of the important aspects of the experiment.While the TRD calibration procedure involves four basic parameters,namely time offset, drift velocity, gain, and noise, this poster presentation is chiefly focused on the noise aspects of the detector. Short pedestal/noise runs are taken roughly once per month during data taking period, recording the data without the usually-applied zero suppression. As a result, we determine the status of each of the more than 1 million readout channels, calculating the noise value for every channel. This is obtained by calculating mean and rms of the ADC valuesfor each channel. In this work, we look at the latest noise run data of December 2022, obtaining the noise map of the whole detector.

Supported by BMBF in the ErUM Framework and DFG GRK2149.