Speaker
Viktor Veszpremi
(Wigner RCP, Budapest (HU))
Description
The CMS tracker detector comprises two tracking devices utilizing
semiconductor technology: the pixel and strip detectors. They are
operating in a high-occupancy and high-radiation environment created by
the beam interactions in the Large Hadron Collider (LHC). The pixel
occupies the innermost region of the CMS detector providing the closest
measurement points for charged particles produced in the LHC collisions.
After introducing the detector, the presentation will describe the
operational experiences collected during the first three years of LHC
running. It will include operational challenges encountered during data
taking. Some details will be given on the performance at high occupancy
with respect to local observables, such as cluster properties and hit
reconstruction efficiency, and on performance degradation due to
radiation effects.
