System test for the ATLAS Pixel Detector Data Acquisition

The ATLAS Pixel Detector is an 80-million-channel silicon tracking system designed to detect charged tracks and secondary vertices with very high precision. To verify that the integrated assembly will perform as expected subsequent to installation into the experimental area, a fraction (10%) of the detector and the corresponding ancillary services have been assembled and operated in a laboratory setting. We refer to this as system testing, and results from these tests will be presented. This contribution will illustrate all the aspects of the system test, including the detector control and safety system, the monitoring system and the DAQ system; finally, techniques for calibrating the detector and taking data with a cosmic muon trigger will be analysed. (c) 2007 Elsevier B.V. All rights reserved.