Commissioning the CMS Pixel Detector with Cosmic Rays.

M. Dinardo
The pixel detector of the Compact Muon Solenoid (CMS) experiment consists of three barrel layers and two endcap disks at each side of the barrel section. The detector was installed in summer 2008, commissioned with the readout chip internal pulse generator, and used in cosmic ray trigger data taking in a 3.8-T magnetic field. Despite the excellent detector performance some problems arose after installation. In about a year we went through a complete and important...