Posted on: 4th December 2016

Fusion researchers at Forschungszentrum Jülich (FZJ) address two key aspects of fusion research:
• Materials for extreme loads – New materials and composites are developed, characterised and tested by exposing them to the harsh conditions of plasma-facing components
• Plasma-material interactions – Understanding the physics of the boundary plasma towards the wall and its interaction with the materials allows the definition of the operational window for ITER and future fusion reactors
Jülich researchers use linear plasma machines on site along with fusion experiments, including Wendelstein 7-X, JET, ASDEX Upgrade, and EAST. In conjunction with theory and model developments, ITER operation scenarios are predicted and the gained knowledge enables extrapolation for DEMO.

Research into the synergistic effects of particle flux, heat load and neutron damage on materials
Linear plasma devices are used in order to mimic conditions at the boundary region in current and next generation fusion experiments. PSI-2, located at Jülich, enables well-defined experiments which apply high particle fluxes and heat loads to material surfaces.

The unique infrastructure at Jülich enables, for the first time, investigations into the effects of neutron damage to wall materials during interaction with plasmas. A second linear machine, JULE-PSI, will start operation at the High-temperature Materials Laboratory (HML).