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Darmstadt 2016 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 69: Instrumentation XIX

HK 69.3: Vortrag

Freitag, 18. März 2016, 14:45–15:00, S1/01 A2

Online Calibration of the ALICE-TPC in LHC-Run 2 — •Alex Chauvin for the ALICE collaboration — TUM, Munich, Germany

The Time Projection Chamber (TPC) is the main tracking detector of the ALICE Experiment at the LHC. As the calibration of other detectors in the ALICE central barrel are based on the TPC itself, its calibration and performance are primordial. During the Run I at LHC, a two-step offline calibration was employed, in which first the TPC and then the other detectors were calibrated. However, due to an higher interaction rate and to allow a continuous readout mode during Run III, data will have to be compressed online before storage. This can be done within the High Level Trigger, which also allow to run online calibrations. In this talk, I will present the TPC online calibration procedure during Run II and its improvements for Run III will be presented with a special focus on the dE/dx online calibration in the HLT.

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