Bochum 2009 – scientific programme

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HK: Fachverband Hadronen und Kerne

HK 75: Accelerators and Instrumentation I

HK 75.9: Talk

Thursday, March 19, 2009, 18:45–19:00, H-ZO 80

Linearity and Energy Resolution of Lead Glass Modules in the Electromagnetic Calorimeter of COMPASS — •Domagoj Čotić — Institut für Kernphysik, Universität Mainz, Johann-Joachim-Becherweg 45, 55099 Mainz

The electromagnetic calorimeter at the COMPASS experiment at CERN are partly equipped with lead glass blocks of type TF1 (GAM) as Cherenkov light emitter. In order to determine the linearity and the energy resolution of these detectors, the performance of 5x5 matrix was studied at the H2-testbeam/CERN with a positron beam. The beam energy was varied between 12.5 and 90 GeV. The results of these test measurements aim an an improved energy calibration of the electromagnetic calorimeter.

supported by BMBF under the contract 06MZ224