CERN Accelerating science

ATLAS Slides
Report number	ATL-LARG-SLIDE-2009-139 ; ATL-COM-LARG-2009-013
Title	Commissioning of the ATLAS LAr Calorimeter
Author(s)	Laplace, Sandrine (Annecy, LAPP)
Collaboration	The ATLAS collaboration
Note	Talk given at the conference Frontier detectors for frontier physics in Elba, 24-30 may 2009
Submitted to	11th Pisa Meeting on Advanced Detectors on Frontier Detectors For Frontier Physics, La Biodola, Italy, 24 - 30 May 2009
Submitted by	laplace@lapp.in2p3.fr on 17 May 2009
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	LAr ; Calorimeter ; Commissioning ; Cosmics ; Muons ; Calibration
Abstract	The in-situ commissioning of the ATLAS LAr calorimeter is going on since three years. During this period, it has been fully tested by means of frequent calibration runs, and the analysis of the large cosmic muon data samples and the few beam splash events that have occurred from Sept. 10 to Sept. 12, 2008. This has allowed to obtain a stable set of calibration constants for the first collisions, and measure in-situ the calorimeter performances, to find them at the expected level.