Overview of the ATLAS data-acquisition system operating with proton-proton collisions

par Nicoletta Garelli (CERN)

vendredi 25 mars 2011, 14:00 → 15:00 Europe/Paris

Amphithéâtre (CPPM)

ATLAS is one of the particle detectors installed at the Large Hadron Collider (LHC). In 2010 it was continuously operated during proton-proton collisions. The first full year of data-taking highlighted the complex operational procedures required to efficiently and proficiently operate such a large detector. At the forefront of ATLAS operations is the Trigger and Data AcQuisitions (TDAQ) system. The architecture of the TDAQ system, in particular the data conveyance from detector read-out to mass storage, will be presented. Special emphasis will be placed on the system flexibility, adaptability and scalability and on the related key technologies. These allowed to meet the evolving ATLAS operational needs, as driven by the increase of luminosity delivered by the LHC, and the trigger and detector commissioning. The additional tools, developed to predict and track the system working point, and the automated procedures put in place to guarantee the high run efficiency, will also be described. In conclusion, I will present the challenges for running in 2011 and 2012.

Slides Garelli2011.pptx