Frankfurt 2014 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 44: Instrumentierung

HK 44.3: Talk

Thursday, March 20, 2014, 14:30–14:45, HZ 9

Characterisation of pixel sensor prototypes for the ALICE ITS Upgrade — •Felix Reidt for the ALICE collaboration — CERN — Physikalisches Institut, Universität Heidelberg

ALICE is preparing a major upgrade of its experimental apparatus to be installed in the second long LHC shutdown (LS2) in the years 2018-2019. A key element of the upgrade is the replacement of the Inner Tracking System (ITS) deploying Monolithic Active Pixel Sensors (MAPS). The upgraded ITS will have a reduced material budget while increasing the pixel density and readout rate capabilities. The novel design leads to higher pointing and momentum resolution as well as a p_T acceptance extended to lower values. The corresponding sensor prototypes were qualified in laboratory measurements and beam tests with respect to their radiation tolerance and detection efficiency. This talk will summarise recent results on the characterisation of prototypes belonging to the ALPIDE family.