Promotionsvortrag Physik: “Instrument Development for the Next-Generation Astroparticle Detectors: Einstein Tele-scope and CTAO”

Ankündigung des Promotionsvortrags von: Herrn Benjamin Schwab

The Einstein Telescope and the Cherenkov Telescope Array Observatory (CTAO) are two next-generation instruments currently in the design and construction phase to advance the field of as-troparticle physics.

Although they explore different aspects of it, gravitational waves and gamma rays, both face simi-lar instrumentation challenges. In this thesis, specialised high-speed cameras are developed for each experiment, which are related by their shared utilisation of high-speed amplification and digit-isation.

For the Einstein Telescope a monitoring tool is developed: A 56-pixel proof-of-concept phase camera capable of simultaneously measuring the spatial phase and amplitude of different radio-frequency components of a laser. Such a phase camera allows the determination of the mode content and wavefront aberrations caused by misalignment in the interferometer.

A key innovation of the prototype is the introduction of a multimode fibre array, which significantly improves image quality.

For CTAO, the front-end electronics for the SST, an Imaging Air Cherenkov Telescope (IACT), is characterised and optimised, with particular focus on the TARGET ASIC pair CTC and CT5TEA. A standardised calibration chain is developed for large-scale production of the camera, focusing on the digitisation ASIC CTC, refining established routines and introducing new ones. The validation and verification results demonstrate that the CTC is suitable for IACTs and meets the CTAO's per-formance requirements.

(Vortrag auf Englisch)

Dem Vortrag schließt sich eine Diskussion von 15 Minuten an. Vortrag und Diskussion sind öffentlich. Diesen Verfahrensteilen folgt ein nicht öffentliches Rigorosum von 45 Minuten.