Darmstadt 2016 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 44: Instrumentation XII

HK 44.4: Vortrag

Mittwoch, 16. März 2016, 17:30–17:45, S1/01 A2

A fast high-voltage current-peak detection system for the ALICE Transition Radiation Detector — •Robert Verclas for the ALICE collaboration — Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg

During LHC operation in run 1, the gaseous detectors of ALICE occasionally experienced simultaneous trips in their high voltage which affected the majority of the high voltage channels. These trips are caused by large anode currents in the detector and are potentially related to LHC machine operations. We developed and installed a fast current-peak detection system for the ALICE Transition Radiation Detector. This system is based on FPGA technology and monitors 144 out 522 high voltage channels minimally invasively at a maximum readout rate of 2 MHz. It is an integral part of the LHC beam monitoring system. We report on the latest status.