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KTH Royal Institute of Technology

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PhD in Fusion Plasma Physics and Nuclear Engineering: Runaway-Electron Damage Modelling KTH Royal Institute of Technology in Sweden

Degree Level

PhD

Field of study

Mechanical Engineering

Funding

This is a full-time doctoral student employment for up to the period corresponding to four years of full-time doctoral education. The position includes a workplace and employee benefits, with a monthly salary according to KTH’s Doctoral student salary agreement. The employment is temporary and may initially be offered for up to one year, with possible renewal according to the stated doctoral employment rules.

Deadline

Dec 24, 2026

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Country

Sweden

University

KTH Royal Institute of Technology

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Keywords

Mechanical Engineering
Electrical Engineering
Materials Science
Nuclear Engineering
Plasma Physics
Computational Mechanics
Monte Carlo Simulation
Physics

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About this position

KTH Royal Institute of Technology is offering a doctoral project in fusion plasma physics and nuclear engineering, within the third-cycle subject of Electrical Engineering. The research addresses the development of durable plasma-facing components for future fusion reactors.

The PhD student will investigate damage caused by runaway electrons to plasma-facing components, a critical issue in assessing fusion-reactor disruption consequences. The project will develop and validate numerical tools using experimental evidence from the EUROfusion Consortium and the DIII-D tokamak in the United States. Validated models will then support predictive simulations of selected ITER scenarios in collaboration with the ITER Organization.

A central part of the work is modelling the deposition of megaelectronvolt runaway-electron energy in plasma-facing materials using Monte Carlo simulations. The resulting data will provide input for thermomechanical models developed with finite element method and computational fluid dynamics software. These models will be used to study severe material deformation and the potential for explosive damage.

The doctoral researcher will work in an environment with expertise in plasma-surface interactions, electron transport into matter and computational modelling. The project offers access to experimental data from major tokamaks worldwide and close collaboration with the Experiments & Plasma Operation Section of the ITER Organization. Supervision is provided by Professor Svetlana Ratynskaia.

Funding details

This is a full-time doctoral student employment for up to the period corresponding to four years of full-time doctoral education. The position includes a workplace and employee benefits, with a monthly salary according to KTH’s Doctoral student salary agreement. The employment is temporary and may initially be offered for up to one year, with possible renewal according to the stated doctoral employment rules.

What's required

Applicants must hold a second-cycle degree such as a master's degree, have completed at least 240 higher-education credits including at least 60 second-cycle credits, or possess substantially equivalent knowledge. Programming skills in Fortran, Python or C/C++ and English equivalent to English B/6 are required. Candidates should be familiar with Monte Carlo modelling of electron transport into matter, basic computational fluid dynamics, and basic computational solid mechanics. Selection also assesses independence, perseverance, collaboration, professionalism, ability to analyse complex issues and relevant research potential.

How to apply

Apply for both the position and admission through KTH’s recruitment system. Submit certified copies of diplomas and grades, language certificates, a CV, an application letter of no more than two pages, and representative publications or technical reports with summaries and links where applicable.

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