Postdoctoral Researcher in Nuclear Waste Chemistry
The Paul Scherrer Institute PSI conducts multi-disciplinary research on safety and design of geological repositories for radioactive wastes. As a Postdoctoral Fellow, you will work closely with senior colleagues to conduct a world-class research program in the development of high-fidelity numerical simulations relevant to nuclear reactor technology as well as to nuclear waste repository systems.
Key Responsibilities
* Develop and refine thermodynamic models for fission products release from coolant using open-source thermodynamic modelling software (GEMS). Couple thermodynamics to transport codes.
* Characterize cementitious pore fluid chemistry using thermodynamic modelling in alkali-activated and ternary-blended binders to assess compatibility with various nuclear waste streams.
* Investigate cesium transport pathways and mechanisms from spent nuclear fuel, using GEMS coupling with 2D/3D pore-level lattice Boltzmann simulators. Apply machine learning based surrogate models to accelerate geochemical modelling.
Your Profile
We are looking for an expert in thermodynamic modelling with geochemical software (e.g. GEMS, PHREEQC or similar), and/or reactive transport modelling. Experience in model development and Machine Learning tools is a plus. The candidate should have a fair knowledge of nuclear waste chemistry and repository geochemistry. Programming experience (e.g., python, C) is beneficial. A PhD or equivalent doctoral degree in Geochemistry/Nuclear engineering/Chemical engineering/Material Science or a related discipline is required.
We Offer
You will profit from systematic training on the job, in addition to personal development possibilities and our pronounced vocational training culture. We offer a dynamic collaboration environment where you can work independently while being part of a team. If you wish to combine work and family life or other personal interests, we are able to support you with our modern employment conditions and infrastructure.
Fixed-Term Position
This is a Fixed-Term position with a 2-year employment contract. Further extension is possible depending on performance and progress of the project.