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

Volume

48

Issue

3

fYear

2001

fDate

6/1/2001 12:00:00 AM

Firstpage

499

Lastpage

503

Abstract

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

Keywords

analogue-digital conversion; calorimeters; nuclear electronics; optical fibres; optical links; particle calorimetry; readout electronics; ADC; CMS; custom optical link; custom wide-range acquisition circuit; electromagnetic calorimeter; fiber communication system; readout electronics; Collision mitigation; Dynamic range; Electromagnetic measurements; Electrons; Energy measurement; Large Hadron Collider; Mesons; Optical fiber communication; Photon collider; Solenoids;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.940106

Filename

940106