Data Quality Monitoring and Performance Studies of the Resistive Plate Chamber Detector at the CMS Experiment at LHC.
Cimmino, Anna (2010) Data Quality Monitoring and Performance Studies of the Resistive Plate Chamber Detector at the CMS Experiment at LHC. [Tesi di dottorato] (Inedito)
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The CMS detector is a sophisticated and massive system: 7 different detector technologies, a high number of front-end electronic channels (10^7) , an input rate of 10^9 interactions per second, a trigger able to reduce the frequency by a factor 10^5, and online computer farms with a storage capability rates of about 10^2 MB/s. CMS is foreseen to take data, with high efficiency, for over 15 years. Clearly, assuring pristine and stable behavior of each of its components is critical and delicate task. The CMS collaboration designed and built, in tandem with detector commissioning, a high-level Data Quality Monitoring (DQM) system for the reliable certification of recorded data for physics analyses. DQM debugs hardware, monitors detector and trigger performance behavior, and highlight problems or malfunctioning by processing calibration and physics data. Definition of the requirements, design, and development of the RPC DQM system, as well as its use to study detector and trigger performance, have been the focus of this doctoral thesis work.
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