Séminaires LAPP
"Development of large Micromegas detectors for the upgrade of the ATLAS Muon Spectrometer".
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Europe/Paris
Description
The Large Hadron Collider, which is about to provide the first proton-proton interactions,is foreseen to be upgraded for raising the luminosity up to 10^35 cm^-2s^-1 (SLHC). The ATLAS experiment at CERN will also need a detector upgrade to cope with the high particle rates expected at SLHC.
An R\&D activity has started to develop large detectors based on the Micromegas technology to be used in the ATLAS Muon Spectrometer.
Micormegas are gaseous detectors which can combine trigger and tracking capabilities and offer high rate capability, altough they have never been used as Muon chambers in large experiments at colliders.
A medium-size Micromegas has been built and evaluated and a large-size prototype (1m^2) is currently under construction.
A survey will be given on the Micromegas working principle and the challenge to build detectors with large surfaces. Test results will be shown together with the future plans of the R\&D activity.