The PhD defence and trial lecture will be streamed. The chair of the defence will moderate the disputation.
Ex auditorio questions: the chair of the defence will invite the audience physically present in the auditorium to ask ex auditorio questions.
→ Live streaming disputation
→ Request for thesis copy (available until the disputation starts)
Trial lecture
Time and place: September 26, 2023; 10:15 AM, Kelvin (V316) - Fysikkbygningen
Title: “The Michelson-Morley experiment and its impact on modern physics”
Live streaming trial lecture zoom
Main research findings
The pixel sensor chip ALPIDE (ALICE PIxel DEtector), specifically designed for the upgrade of ITS (Inner Tracking System) of ALICE (A Large Ion Collider Experiment), has been identified as an exciting candidate for other projects outside of ITS, like the Proton Computed Tomography project at the University of Bergen and the Forward Calorimeter (FoCal) project that will be installed in ALICE during Long Shutdown 3.
This work has studied the response of the ALPIDE chip when used in the electromagnetic calorimeter prototype (EPICAL-2). ALPIDE chips exposed to heavy-ion beams showed that the magnitude of the chip response increased with the amount of energy deposited by the beam particles. In addition, ALPIDE chips placed in particle beams laterally showed that ALPIDE chips can track a particle if it moves through the sensitive medium of the chip.
EPICAL-2’s energy measurement precision was better than EPICAL-1's (its predecessor). The dependence of the measured signal on the energy deposited by traversing particles remained unchanged despite variations in operating temperature and the number of pixels masked to minimize device noise.
Adjudication Committee
- Professor Hans-Christian Schultz-Coulon, Kirchhoff-Institute for Physics, Heidelberg University, Germany
- Adjunct Professor Erik Brücken, Department of Physics, University of Helsinki, Finland
- Professor Ann-Cecilie Larsen, Department of Physics, University of Oslo, Norway
Supervisors
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Professor Ketil Røed, Department of Physics, University of Oslo, Norway
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Professor Trine Spestad Tveter, Department of Physics, University of Oslo, Norway
Chair of defence
- Professor Andreas Görgen, Department of Physics, University of Oslo, Norway
Candidate contact information
Phone number: 45848329
E-mail: malik.qasim.waheed@gmail.com
Contact information to Department: Line Trosterud Resvold