SICAL — a high precision silicon-tungsten luminosity calorimeter for ALEPH

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...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 1995-11, Vol.365 (1), p.117-134
Main Authors: 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.
Format: Article
Language:English
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Summary: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.
ISSN:0168-9002
1872-9576
DOI:10.1016/0168-9002(95)00409-2