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Development of radiation-hard, cryogenic silicon detectors for luminosity and total cross-section measurements at the Large Hadron Collider

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In the proposed programme the Consortium will investigate a number of options for enhancing radiation hardness in silicon microstrip and pixellated detectors, both through the creation of a computer model of the effects of the radiation damage centres in the crystal and through experimental evaluation of specially-prepared silicon substrates containing enhanced levels of oxygen and other dopant atoms. Their behaviour at cryogenic temperatures will be the subject of particular study, following on from the current investigations of the so-called 'Lazarus Effect', in which highly irradiated silicon has been shown to be re-vitalised by its low temperature operation (below 120 Kelvin). Prototype detectors produced by the NIS members in Moscow and PTI will be evaluated jointly with the INTAS partners in Bern, Glasgow and CERN. The final outcome of this work will be a review report, summarising the prospects for further enhancement of silicon detectors operating in very hostile radiation environments.
One of the main objectives of this programme of research is the study of the feasibility of utilising specially radiation tolerant silicon detectors to construct charged particle beam telescopes with which to make the fundamentally important measurement of the total cross-section for proton-proton scattering at the new high energy frontier which will be provided by the Large Hadron Collider at CERN. A continuing practical application of the technology will be the provision of improved means of monitoring the colliding beam luminosity at the LHC, using measurements of small angle proton-proton elastic scattering. The deliverables from this part of the project will be a design study, including recommendations for the telescope detector locations and specifications, including the necessary mechanical support structures.

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UNIVERSITY OF GLASGOW
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Letzte Aktualisierung: 30 Oktober 2002

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Permalink: https://cordis.europa.eu/project/id/INTAS-1999-00850/de

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