Performance of CMS ECAL Preshower in 2007 test beam

Syue Wei Li, Apollo Go, Chia Ming Kuo

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The Preshower detector is part of the CMS Electromagnetic Calorimeter, located in the endcap regions, in front of the lead tungstate crystals. It consists of two orthogonal planes of silicon strip sensors interleaved with two planes of lead absorbers. A combined beam test of close-to-final prototypes of the Hadron calorimeter, the crystal calorimeter and the Preshower detector was performed in the summer of 2007. Calibrations were made using electron and pion data. Good signal/noise performance was obtained in both gains of measurements

Original languageEnglish
Article number012052
JournalJournal of Physics: Conference Series
StatePublished - 2009


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