2 PhD positions @University of Helsinki, Finland
two projects are within the Doctoral Education Pilot for Mathematics of Sensing, Imaging and Modelling.
The project subjects are:
- Artificially intelligent gamma ray imaging detectors
Position sensitivity in a semiconductor detector is obtained from the signals induced on a segmented electrode structure on the semiconductor crystal surface during collection of the electric charges created where radiation interacts; these charges being moved by an applied electric field. Advanced signal processing is needed to obtain optimum performance in terms of position and energy resolution as well as count rate capability. The best performance is obtained when applying artificial intelligence techniques. In the project, optimized artificial intelligence algorithms will be developed, using laboratory measurements with a state-of-the-art detector to provide training data. The resulting improved imaging capabilities will be quantified. This project will be performed in consultation with Dr. Andreas Hauptmann from Oulu University.
- Advanced image reconstruction for passive gamma emission tomography (PGET) of spent nuclear fuel
Passive gamma emission tomography of spent nuclear fuel is an essential component of the nuclear safeguards protocols at the Onkalo geological repository for spent nuclear fuel. Our database of PGET measurements at the Finnish nuclear power plants, arguably the largest in the world available for academic research, will be used to optimized the image reconstruction techniques. This experimental database will be enhanced with Monte Carlo simulations. Some focus areas are improving the image quality of the central region of spent fuel assemblies, sparse angle tomography, scattering correction.
This project is a collaboration with Prof. Samuli Siltanen from the University of Helsinki. The project will benefit from consultation with the Nuclear and Radiation Safety Authority STUK, our collaborator on the development of PGET since 2015.
The application period opens on 2 April 2024 and closes on 22 April 2024.
Find out more about the positions available in different scientific networks and projects and the application criteria:
Pilot website and Call Announcement
FAQ about Doctoral Education Pilot
If you have a University of Helsinki account, you can read more in Flamma news in English (tai suomeksi).
For general questions about the doctoral education pilot, please contact: doctoralpilot@helsinki.fi .
For questions about the two projects mentioned above, please contact peter.dendooven@helsinki.fi .
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