Instruments for detecting electric breakdowns in proportional drift chambers of the transition radiation tracker in the ATLAS experiment |
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| Authors: | K. I. Zhukov V. A. Kantserov S. V. Murav’ev A. P. Shmeleva |
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| Affiliation: | 1.Lebedev Physics Institute,Russian Academy of Sciences,Moscow,Russia;2.National Research Nuclear University MEPhI,Moscow,Russia |
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| Abstract: | The transition radiation tracker is a part of the ATLAS facility at the LHC accelerator at CERN and operates as a position detector and a detector of transient radiation. It consists of approximately 400000 proportional drift chambers (PDCs) filled with a mixture of Xe + CO2 + O2. During its operation, electric breakdowns may occur, which may result in a failure of the detecting element. To diagnose and find broken-down PDCs, an instrument has been developed that makes it possible, by analyzing signals from the anode, to detect defective PDCs and exclude them from the working detector. |
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