The ATLAS tile calorimeter performance at the LHC

Conference · Fri Jul 01 00:00:00 EDT 2011

DOI:https://doi.org/10.1109/ANIMMA.2011.6172825· OSTI ID:22039797

Calkins, R ^[1]

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1. N.I.U. (United States)

The Tile Calorimeter (TileCal), the central section of the hadronic calorimeter of the ATLAS experiment, is a key detector component to detect hadrons, jets and taus and to measure the missing transverse energy. Due to the very good muon signal to noise ratio it assists the spectrometer in the identification and reconstruction of muons. TileCal is built of steel and scintillating tiles coupled to optical fibers and read out by photomultipliers. The calorimeter is equipped with systems that allow to monitor and to calibrate each stage of the read out system exploiting different signal sources: laser light, charge injection and a radioactive source. The performance of the calorimeter has been measured and monitored using calibration data, random triggered data, cosmic muons and more importantly LHC collision events. The results presented here assess the absolute energy scale calibration precision, the energy and timing uniformity and the synchronization precision. The ensemble of the results demonstrates a very good understanding of the performance of the Tile Calorimeter that is proved to be well within the design expectations. (authors)

• OSTI ID: 22039797
• Resource Relation: Conference: ANIMMA 2011: 2. International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications, Ghent (Belgium), 6-9 Jun 2011; Other Information: Country of input: France; 6 refs.; IEEE Catalog Number: CFP1124I-CDR
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
CALIBRATION
CALORIMETRIC DOSEMETERS
CERN LHC
COLLISIONS
COSMIC MUONS
HADRONS
OPTICAL FIBERS
PARTICLE DISCRIMINATION
PHOTOMULTIPLIERS
RADIATION SOURCES
READOUT SYSTEMS
SIGNAL-TO-NOISE RATIO
SPECTROMETERS
STEELS
SYNCHRONIZATION
TRANSVERSE ENERGY
VISIBLE RADIATION