Analysis of 3D Pixel Detectors for the ATLAS Inner Tracker Upgrade
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The silicon 3D pixel detector represent a detector technology that has a higher radiation tolerance compared to the conventional planar pixel detectors. This detector technology is one of the technologies proposed to be installed in the new ATLAS Inner Tracker (ITk). In this thesis an analysis of three such 3D pixel detectors has been performed on data collected at two testbeams in 2015 and 2016. The charge collection efficiency, tracking resolution and the active edge of the detectors have been investigated. Furthermore, a detailed Monte Carlo simulation of the full testbeam experiment has been performed. A good efficiency and resolution was measured and full depletion was observed at 5V bias voltage. The results from the simulation was analysed and compared to the results from the testbeams.