Title :
Light-to-light readout system of the CMS electromagnetic calorimeter
Author :
Denes, P. ; Bussat, J.-M. ; Lustermann, W. ; Mathez, H. ; Pangaud, P. ; Walder, J.P.
Author_Institution :
Dept. of Phys., Princeton Univ., NJ, USA
Abstract :
For the CMS experiment at the Large Hadron Collider at CERN, an 80 000-crystal electromagnetic calorimeter will measure electron and photon energies with high precision over a dynamic range of roughly 16 bits. The readout electronics will be located directly behind the crystals, and must survive a total dose of up to 2×104 Gy along with 5×1013 n/cm2. A readout chain consisting of a custom wide-range acquisition circuit, commercial ADC and custom optical link for each crystal is presently under construction. An overview of the design is presented, with emphasis on the large-scale fiber communication system
Keywords :
analogue-digital conversion; data acquisition; electron detection; gamma-ray detection; nuclear electronics; optical fibre communication; optical links; particle calorimetry; readout electronics; solid scintillation detectors; 2E4 Gy; ADC; CMS electromagnetic calorimeter; PbWO4; electron energies; large-scale fiber communication system; light-to-light readout system; optical link; photon energies; readout electronics; scintillation detector; wide-range acquisition circuit; Collision mitigation; Dynamic range; Electromagnetic measurements; Electrons; Energy measurement; Large Hadron Collider; Optical fiber communication; Photon collider; Photonic crystals; Readout electronics;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949885
