Results from the commissioning of the ATLAS pixel detector

The ATLAS pixel detector is the innermost tracking detector of the ATLAS experiment at the Large Hadron Collider (LHC) at CERN. It has a total active area of 1.7 m² of silicon read out by approximately 80 million electronic channels, which will detect particle tracks and decay vertices with a very high precision. After more than 10 years of development and construction it is the first time ever the whole detector has been operated together. The paper will illustrate the detector performance and give first results from the combined ATLAS cosmics runs.