Speaker
Alessandro Polini
(BO)
Description
Resistive Plate Chambers (RPC) provide the barrel region of the ATLAS detector with an independent muon trigger and a two-coordinate measurement.
The chambers, arranged in three concentric double layers are operated in a strong magnetic toroidal field and cover a surface area of about 4000 m2.
During 2011 the LHC has provided proton-proton collisions at 7 TeV in the center-of-mass frame with a steady increase in instantaneous luminosity over several orders of magnitude, summing up to 5fb-1.
The operational experience for this running period is presented along with studies on the detector performance as a function of luminosity, environmental conditions and working point settings.
The measurements presented allow defining a strategy for the data taking in next years and make predictions on the performance when higher luminosities will be reached.
Primary author
Dr
Christine Kourkoumelis
(CERN)
