CERN Accelerating science

ATLAS Note
Report number ATL-TILECAL-PUB-2007-001 ; ATL-COM-TILECAL-2006-013 ; CERN-ATL-TILECAL-PUB-2007-001
Title Electromagnetic Cell Level Calibration for ATLAS Tile Calorimeter Modules
Author(s) Kulchitskii, Yu A ; Tsiareshka, P V ; Budagov, Yu A ; Khubua, J I ; Rusakovitch, N A ; Vinogradov, V B ; Henriques, A ; Davidek, T ; Tokar, S ; Solodkov, A ; Vichou, I
Publication 2006
Imprint 11 Dec 2006
Number of pages 83
Subject category Detectors and Experimental Techniques
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords Tile calorimeter, ; test beam results, ; electromagnetic calibration, ; cell level calibration
Abstract We have determined the electromagnetic calibration constants of 11% TileCal modules exposed to electron beams with incident angles of 20 and 90 degrees. The gain of all the calorimeter cells have been pre-equalized using the radioactive Cs-source that will be also used in situ. The average values for these modules are equal to: for the flat filter method 1.154+/-0.002 pC/GeV and 1.192+/-0.002 pC/GeV for 20 and 90 degrees, for the fit method 1.040+/-0.002 pC/GeV and 1.068+/-0.003 pC/GeV, respectively. These average values for all cells of calibrated modules agree with the weighted average calibration constants for separate modules within the errors. Using the individual calibration constants for every module the RMS spread value of constants will be 1.9+/-0.1 %. In the case of the global constant this value will be 2.6+/-0.1 %. Finally, we present the global constants which should be used for the electromagnetic calibration of the ATLAS Tile hadronic calorimeter data in the ATHENA framework. These constants are equal to 1.15 pC/GeV in the case of the flat filter method and 1.04 pC/GeV for the fit one.
Copyright/License Preprint: (License: CC-BY-4.0)

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 Record creato 2006-12-11, modificato l'ultima volta il 2018-05-29


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