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ISSN 1748-0221
7:28 - Saturday, 23 September 2017
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    JINST Instrumentation Theses Archive

2012 JINST TH 002

Ph.D. degree thesis
accepted by INFN Sezione di Perugia, Italy in 2012

Stefano Meroli

Supervisor: Leonello Servoli

Silicon pixel detectors for high precision measurements


  • Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)
  • Particle tracking detectors (Solid-state detectors)
  • Data acquisition concepts
  • Performance of High Energy Physics Detectors

The subject of my activity has been the characterization, through the development of innovative methodologies and instruments, and design and optimization of different flavors of pixel sensors, read-out by standard CMOS technology, either as a separate chip than integrated on the same silicon substrate of the sensing element, for the detection of different types of ionizing radiation.
Several classes of sensors have thus been studied, from the well known Hybrid Pixel Detectors, to the CMOS Active Pixel Sensors, to the modern many-tiers pixel detectors developed using a 3D Vertical Scale Integration technology.
Complex test setups have been developed as well as dedicated algorithms to extract the important parameters of each sensor.
A modified grazing angle method with medium energy charged particle beams (i.e. few hundreds MeV electrons) has been developed to probe deeply the sensor characteristics.

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