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Proceedings chapter
English

Integration of the Trigger and Data Acquisition Systems in ATLAS

ContributorsATLAS Collaboration
Published inInternational Conference on Computing in High Energy and Nuclear Physics (CHEP'07), Editors Sobie, R. & Tafirout, R. & Thomson, J., p. 10
Presented at Victoria, BC (Canada), 2-7 septembre 2007
PublisherUSA : IOP Publishing
Collection
  • Journal of Physics: Conference Series; 119
Publication date2008
Abstract

During 2006 and the first half of 2007, the installation, integration and commissioning of trigger and data acquisition (TDAQ) equipment in the ATLAS experimental area have progressed. There have been a series of technical runs using the final components of the system already installed in the experimental area. Various tests have been run including ones where level 1 preselected simulated proton-proton events have been processed in a loop mode through the trigger and dataflow chains. The system included the readout buffers containing the events, event building, level 2 and event filter trigger algorithms. The scalability of the system with respect to the number of event building nodes used has been studied and quantities critical for the final system, such as trigger rates and event processing times, have been measured using different trigger algorithms as well as different TDAQ components. This paper presents the TDAQ architecture, the current status of the installation and commissioning and highlights the main test results that validate the system.

Citation (ISO format)
ATLAS Collaboration. Integration of the Trigger and Data Acquisition Systems in ATLAS. In: International Conference on Computing in High Energy and Nuclear Physics (CHEP′07). Victoria, BC (Canada). USA : IOP Publishing, 2008. p. 10. (Journal of Physics: Conference Series) doi: 10.1088/1742-6596/119/2/022001
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