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Persistent URL http://purl.org/net/epubs/work/29603
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Record Id 29603
Title Radiation-Hard Optoelectronic Data Transfer for the CMS Tracker
Abstract An introduction to the physics prospects of future experiments at the CERN Large Hadron Collider (LHC) will be given, along with the rather stringent requirements placed on their detectors by the LHC environment. Emphasis will be placed upon the particle tracking detectors, and the particular problem of their readout systems. The novel analogue optical readout scheme chosen by the Compact Muon Solenoid (CMS) experiment at the LHC will provide the basis for this thesis. The reasons for preferring analogue optical data transmission in CMS will be given, leading to a description of a generic optical readout scheme and its components. The particular scheme chosen by CMS makes as wide as possible use of commercially available components. These will be given the greatest importance, with descriptions of component operation and characteristics pertinent to successful readout of the CMS tracker within the constraints of the LHC environment. Of particular concern is the effect of the LHC's harsh radiation environment on the operational characteristics of the readout system and its components. Work on radiation effects in components of the CMS tracker optical readout system will be described. This work includes the effects of ionising (gamma photon) and particle (neutron, proton, ion) irradiation on the operational characteristics and reliability of laser diodes, photodiodes and optical fibres. System integration issues are discussed in the context of the long-term operation of the full CMS tracker readout system under laboratory conditions. It will be shown that system stability can be maintained even under widely varying ambient conditions.
Organisation CCLRC
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Language English (EN)
Type Details URI(s) Local file(s) Year
Thesis RAL Theses RAL-TH-1999-010. 1999. 1999