The ATLAS liquid argon calorimeters: construction, commissioning, and selected beam results

Author

Fanti, Marcello

Author_Institution

Dept. of Phys., Milan Univ., Italy

Volume

1

fYear

2004

fDate

16-22 Oct. 2004

Firstpage

107

Abstract

All modules of the ATLAS electromagnetic calorimeter (32 barrel and 16 end-cap modules) are now assembled. The four wheels of the ATLAS hadronic endcap calorimeter and the two forward calorimeters are built and are being inserted in the cryostats. The status of the integration and tests at CERN are presented. Several production modules of the electromagnetic calorimeter (4 for the barrel, 3 for the endcap) have been tested on SPS electron beams, from 5 to 250 GeV. A selection of results will be discussed with particular attention to linearity, uniformity, position and time measurement, photon-neutral pion and electron-pion separation. Besides, a segment of the electromagnetic and hadronic liquid argon endcap calorimeters, in a setup close to that of the ATLAS experiment, have been exposed to electron, pion and muon beams in the energy range 6 GeV to 200 GeV. Results on the hadronic shower signal reconstruction are presented.

Keywords

calorimeters; cryostats; electron detection; liquid ionisation chambers; liquid scintillation detectors; meson detection; muon detection; particle calorimetry; position sensitive particle detectors; 5 to 250 GeV; ATLAS electromagnetic calorimeter; ATLAS experiment; ATLAS hadronic endcap calorimeter; ATLAS liquid argon calorimeters; SPS electron beams; calorimeter linearity; calorimeter uniformity; cryostats; electron beam; electron-pion separation; hadronic liquid argon endcap calorimeters; hadronic shower signal reconstruction; muon beam; photon-neutral pion separation; pion beam; position measurement; production modules; time measurement; Argon; Assembly; Electron beams; Linearity; Mesons; Production; Structural beams; Testing; Time measurement; Wheels;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2004 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-8700-7

Electronic_ISBN

1082-3654

Type

conf

DOI

10.1109/NSSMIC.2004.1462078

Filename

1462078