21 research outputs found

    ATLAS detector and physics performance: Technical Design Report, 1

    Get PDF

    Design and Implementation of the ATLAS Detector Control System

    No full text
    The overall dimensions of the ATLAS experiment and its harsh environment, due to radiation and magnetic field, represent new challenges for the implementation of the Detector Control System. It supervises all hardware of the ATLAS detector, monitors the infrastructure of the experiment, and provides information exchange with the LHC accelerator. The system must allow for the operation of the different ATLAS sub-detectors in stand-alone mode, as required for calibration and debugging, as well as the coherent and integrated operation of all sub-detectors for physics data taking. For this reason, the Detector Control System is logically arranged to map the hierarchical organization of the ATLAS detector. Special requirements are placed onto the ATLAS Detector Control System because of the large number of distributed I/O channels and of the inaccessibility of the equipment during operation. Standardization is a crucial issue for the design and implementation of the control system because of the large variety of equipment and the high number of different groups involved working all around the world. The functions of the two main components of the DCS, namely the distributed Back-End software system, which will be based on a commercial SCADA package, and the sub-detector's Front-End systems, with extensive use of the CAN fieldbus, are explained. The standard readout chain of the Detector Control System, which comprises both Back-End software and general-purpose Front-End equipment, is described and its performance is discussed

    Recommendations for the use of fieldbuses at CERN in the LHC era

    No full text
    Throughout the LHC project fieldbuses will be required to connect and control equipment and devices of various types. It will be necessary to integrate both industrial equipment and custom designed devices. In order to increase efficiency of resources the working group recommends restricting the choice of fieldbuses, to be used in the years to come at CERN and by the various institutes collaborating in the LHC project, to three : CAN bus, PROFIBUS and WORLDFIP. Keywords : fieldbus, controls, standard, CAN, PROFIBUS, WORLDFI

    ATLAS

    No full text

    ATLAS

    No full text
    corecore