PhD in Optimizing Dissolution and Chemical Processing of Fast Reactor MOX Fuel Belgian Nuclear Research Centre in Belgium

This funded PhD position at the Belgian Nuclear Research Centre (SCK CEN) offers an exciting opportunity to contribute to the advancement of nuclear fuel cycle technology, specifically focusing on the dissolution and chemical processing of fast reactor MOX (Mixed Oxide) fuel. The research is situated within the SCK CEN Academy for Nuclear Science and Technology, in Mol, Belgium, and is closely linked to the development of next-generation nuclear reactors, including Lead-Cooled Fast Reactors (LFRs) and Small Modular Reactors (SMRs).

The project addresses the challenges associated with the recycling and reprocessing of MOX fuel containing high plutonium content (up to 30% PuO₂), which is critical for the sustainability and efficiency of nuclear energy production. The successful candidate will develop advanced chemical methods for the dissolution of difficult-to-dissolve MOX fuels, including the exploration of electrochemically assisted and ultrasonic aided techniques. The research will also focus on creating a CHON-compliant solvent extraction process for the separation and recycling of plutonium and uranium from both historical and future MOX fuels, ensuring minimal interference from degradation products and maintaining the purity of recycled materials.

Key experimental techniques will include radiochemical analysis, measurement uncertainty analysis, UV/Vis spectroscopy, pycnometry, and microscopy. The work is multidisciplinary, involving close collaboration with experts in nuclear science, chemistry, and engineering, and benefits from SCK CEN’s state-of-the-art facilities designed for nuclear experiments.

Applicants must hold a Master of Science or Master of Science in Engineering with a strong background in Chemistry. Excellent English language skills are required. The position is fully funded for four years, with additional benefits including access to internal training courses through the SCK CEN Academy and opportunities for knowledge exchange within an international research environment.

The application deadline is March 31, 2026. Interested candidates should apply online via the SCK CEN website, preparing a CV, motivation letter, and academic transcripts. For further information or questions, contact [email protected]. This position is ideal for candidates seeking to make a significant impact in nuclear chemistry and fuel cycle research, with direct relevance to the future of sustainable nuclear energy.