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 of trial lecture and disputation (link will be available)
→ Request for thesis copy (available until the disputation starts)
Trial lecture
Time and place: December 15, 2023; 10:15 AM, Lille Fysiske Auditorium (V232) - Fysikkbygningen
Title: "Use of hybrid pixel detectors in high-energy physics"
Main research findings
In the pursuit of the high luminosity upgrade of the Large Hadron Collider (LHC) at CERN, the current Inner Detector of the ATLAS experiment will be completely replaced by a new all-silicon Inner Tracker (ITk). MALTA, a Depleted Monolithic Active Pixel Sensor (DMAPS) designed using Tower Semiconductor's 180 nm CMOS imaging technology, was developed to assess its suitability in ATLAS ITk and other high-energy physics experiments. This study demonstrates that the latest prototype of the MALTA family, MALTA2, achieves full efficiency and excellent timing resolution both before and after irradiation. This success is attributed to a combination of sensor design, front-end modifications, and the use of Czochralski substrates. Additionally, the research presents the architecture and performance of the MALTA telescope, emphasizing its outstanding spatial and track timing resolution. Furthermore, it demonstrates successful chip-to-chip data transmission without signal distortion in multi-chip MALTA modules. Lastly, the study explores the use of versatile coatings and embedding layers to enhance the durability and reliability of multi-chip modules.
Adjudication Committee
- Dr. Anna Macchiolo, University of Zürich, Switzerland
- Professor Michael Campbell, CERN, Switzerland
- Professor Eduard Monakhov, University of Oslo, Norway
Supervisors
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Professor Heidi Sandaker, Department of Physics, University of Oslo, Norway
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Dr. Heinz Pernegger, CERN, Switzerland
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Dr. Petra Riedler, CERN, Switzerland
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Dr. Ole Myhren Røhne, Department of Physics, University of Oslo, Norway
Chair of defence
Professor Andreas Görgen, Department of Physics, University of Oslo, Norway
Contact information to Department: Line Trosterud Resvold