Light-to-light readout system of the CMS electromagneticcalorimeter
Denes, P.; Bussat, J.M.; Lustermann, W.; Mathez, H.; Pangaud, P.; Walder, J.P.
Nuclear Science, IEEE Transactions on
Volume 48, Issue 3, Jun 2001 Page(s):499 - 503
Digital Object Identifier   10.1109/23.940106
Summary:For the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) 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/cm ². 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

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