Published November 1, 1995 | Version v1
Journal article Metadata-only

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

Creators

  • 1. CEA Centre d'Etudes Nucleaires de Saclay, 91 -Gif-sur-Yvettee (France). Dept. d'Astrophysique, de Physique des Particules, de Physique Nucleaire et de l'Instrumentation Associee (DAPNIA)
  • 2. CEA Centre d'Etudes Nucleaires de Saclay, 91 -Gif-sur-Yvette (France). Dept. d'Astrophysique, de Physique des Particules, de Physique Nucleaire et de l'Instrumentation Associee (DAPNIA)
  • 3. CEA Centre 'Etudes Nucleaires de Saclay, 91 - Gi f-sur-Yvette (France). Dept. d'Astrophysique, de Physique des Particules, de Physique Nucleaire et de l'Instrumentation Associee (DAPNIA)

Description

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 12 288 pads of the detector. Trigger decisions are generated from a rapid flash-ADC system using programmable gate arrays. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
365
Journal Issue
1
Journal Page Range
p. 117-134.
ISSN
0168-9002
CODEN
NIMAER

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
27006031
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
ANALOG-TO-DIGITAL CONVERTERS; BEAM LUMINOSITY; BEAM MONITORING; BEAM MONITORS; BHABHA SCATTERING; CALORIMETERS; CASCADE SHOWERS; LEP STORAGE RINGS; READOUT SYSTEMS; SHOWER COUNTERS; SI SEMICONDUCTOR DETECTORS; TRIGGER CIRCUITS; TUNGSTEN
Descriptors DEC
ACCELERATORS; CYCLIC ACCELERATORS; ELASTIC SCATTERING; ELECTRONIC CIRCUITS; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; MEASURING INSTRUMENTS; METALS; MONITORING; MONITORS; PULSE CIRCUITS; RADIATION DETECTORS; SCATTERING; SEMICONDUCTOR DETECTORS; SHOWERS; STORAGE RINGS; SYNCHROTRONS; TRANSITION ELEMENTS