학술논문

Readiness of the ATLAS Tile Calorimeter for LHC collisions
Document Type
article
Source
European Physical Journal C. 70(4)
Subject
physics.ins-det
hep-ex
Nuclear & Particles Physics
Quantum Physics
Atomic
Molecular
Nuclear
Particle and Plasma Physics
Atomic
Molecular
Nuclear
Particle and Plasma Physics
Language
Abstract
The Tile hadronic calorimeter of the ATLAS detector has undergone extensive testing in the experimental hall since its installation in late 2005. The readout, control and calibration systems have been fully operational since 2007 and the detector has successfully collected data from the LHC single beams in 2008 and first collisions in 2009. This paper gives an overview of the Tile Calorimeter performance as measured using random triggers, calibration data, data from cosmic ray muons and single beam data. The detector operation status, noise characteristics and performance of the calibration systems are presented, as well as the validation of the timing and energy calibration carried out with minimum ionising cosmic ray muons data. The calibration systems' precision is well below the design value of 1%. The determination of the global energy scale was performed with an uncertainty of 4%. © 2010 CERN for the benefit of the ATLAS collaboration.