Speaker
Tilman Rohe
(Paul Scherrer Institut (CH))
Description
The CMS experiment is equipped with a 3 layer pixel detector for track seeding and vertexing. The talk gives a short description of the detector and its performance. During 2011 first radiation induced changes of the modules became noticable. This concerns the leakage current of the sensors, and the full depletion voltage, but also some parameters of the readout electronics.
It is planned to replace the CMS pixel detector by a new 4 ayer system in 2017. The motivation and a short description of the upgraded detector is also given.
