The ATLAS detector as installed in its experimental cavern at point 1 at CERN is described in this paper. A brief overview of the expected performance of the detector when the Large Hadron Collider begins operation is also presented.

The ATLAS Experiment at the CERN Large Hadron Collider

CAUZ Diego;COBAL Marina;DEL PAPA Carlo;GRASSMANN Hans;DE LOTTO Barbara;GIORDANI Mario;L Santi;