Physics – Instrumentation and Detectors
Scientific paper
2005-10-31
Nucl.Instrum.Meth. A565 (2006) 90-96
Physics
Instrumentation and Detectors
8 pages, 8 figures, proceedings for the Pixel2005 workshop
Scientific paper
10.1016/j.nima.2006.04.097
The ATLAS pixel detector consists of 1744 identical silicon pixel modules arranged in three barrel layers providing coverage for the central region, and three disk layers on either side of the primary interaction point providing coverage of the forward regions. Once deployed into the experiment, the detector will employ optical data transfer, with the requisite powering being provided by a complex system of commercial and custom-made power supplies. However, during normal performance and production tests in the laboratory, only single modules are operated and electrical readout is used. In addition, standard laboratory power supplies are used. In contrast to these normal tests, the data discussed here was obtained from a multi-module assembly which was powered and read out using production items: the optical data path, the final design power supply system using close to final services, and the Detector Control System (DCS). To demonstrate the functionality of the pixel detector system a stepwise transition was made from the normal laboratory readout and power supply systems to the ones foreseen for the experiment, with validation of the data obtained at each transition.
Becks Karl-Heinz
Flick Tobias
Henss Tobias
Imhäuser Martin
Kersten Susanne
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