engThe ATLAS collaborationNon-collision backgrounds as measured by the ATLAS detector during the 2010 proton-proton runDetectors and Experimental TechniquesATLAS-CONF-2011-137In this note we discuss the level of non-collision backgrounds and their properties in the ATLAS experiment. The data is collected with the ATLAS detector at a centre-of-mass energy of 7 TeV during the 2010 proton-proton run and during dedicated data-taking of cosmic-ray data at the Large Hadron Collider (LHC). The objective of the study is the understanding of the characteristics of the non-collision backgrounds in order to identify, estimate and reject them in the physics analyses.2011-09-20http://cds.cern.ch/record/1383840Conference talks on ATLAShttp://cds.cern.ch/record/1383840oai:cds.cern.ch:1383840All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2011-137