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R&D for ATLAS pixels for LHC
Séminaire présenté par Mr. Marco Bomben (LPNHE Paris).
Lundi 21 Mars de 11h à 12h au LAL, salle 101
The ATLAS detector is one of two large general-purpose detectors designed to probe new physics at the Large Hadron Collider at CERN. The ATLAS detector consists of muon spectromers, hadronic and electromagnetic calorimeter and a silicon tracker, the Inner Detector (ID). The Pixel detector is the innermost part of the ID (and so of the
ATLAS detector) and is the most important detector used in the identification and reconstruction of secondary vertices from the decay of, for example, particles containing a b-quark or for b-tagging of jets. The ATLAS Inner Detector is currently only compatible with LHC's design luminosity of 10^34 cm^-2 s^-1. The foreseen increase towards SLHC with peak luminosities of up to 10^35 cm^-2 s^-1 requires a fundamental re-design of the complete inner detector due to both, increased radiation damage as well as much increased occupancy of the sub-detectors.
I will present the status of the R&D for the ATLAS Inner Detector Upgrade and in particular the efforts of the ATLAS Upgrade Planar Pixel Sensor R&D (PPS) project. The PPS collaboration investigates the suitability of planar silicon pixel sensors for the ATLAS Upgrade. The collaboration designed and realized pixel sensor prototypes and put a new readout chip under development. I will focus on the simulation of new sensors, the test of the sensor prototypes, both in cleanroom and at testbeams, with a special emphasis on results for irradiated devices.