The inner tracking system is designed to measure as precisely as possible the trajectories of charged particles with a full silicon based system. Originally CMS was foreseen to use two different detector technologies in the central strip tracking part: silicon based strip detectors and micro strip gas chambers (MSGC, ) in the outer regions. Finally in the year 1999 the CMS collaboration decided to use a full silicon solution for the entire tracking device, because of superior radiation hardness and dropping prices for silicon sensors.
KeywordsDetector Module Silicon Strip Muon System Control Ring High Voltage Line
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