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Bédérède, D.; Beuville, E.; Bloch-Devaux, B.; Gosset, L.; Joudon, A.; Lançon, E.; Pascual, J.; Perlas, J.; Peyaud, B.; Rander, J.; Renardy, J.F.; Schuller, J.P.; Vallage, B.; Benetta, R.; Boudreau, J.; Griffiths, J.; Grabit, R.; Jarron, P.; Lofstedt, B.; Miquel, R.; Santiard, J.C.; Stefanini, G.; Wahl, H.; Avanzini, C.; Cerri, C.; Fantechi, R.; Lorenzini, R.; Martin, E.B.; Pierazzini, G.; Valassi, A.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 11/1995, Volume: 365, Issue: 1Journal Article
The design, construction and performance of a silicon-tungsten electromagnetic calorimeter built to achieve an experimental luminosity measurement precision at LEP≤0.1% is described. The detector uses homogeneous construction to give full azimuthal acceptance for Bhabha scattering over polar angles from 24 to 58 mrad. Detailed information concerning shower development is obtained from zero-suppressed readout of the 12288 pads of the detector. Trigger decisions are generated from a rapid flash-ADC system using programmable gate arrays.
