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Institute of Energy and Climate Research
Plasma Physics IEK-4

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Plasma-Material Interactions

Our research focuses on the plasma-wall interactions and materials for first walls in a fusion reactor. Extremely high thermal loads occur here that future power plants will have to withstand in continuous load operation if they are to be economically viable. We investigate the materials suited to this purpose and analyse their interaction with the hot fusion plasma, in collaboration with leading fusion experiments all over the world.


Erstes Plasma in Wendelstein 7-X

Jülich endoscope for Wendelstein 7-X delivers first image

An important tool for the Jülich research programme on plasma wall interactions at Wendelstein 7-X is a set of optical instruments allowing for local observation of the divertor area in the range of infrared up to UV. For this purpose, researchers have developed an endoscope which transfers the light collected at the plasma boundary via a set of mirrors with complex shape out of the stellarator for evaluation with cameras and spectrometers More: Jülich endoscope for Wendelstein 7-X delivers first image …

Jülicher Plasmaphysiker bauen Mess-System für ITER

Jülich contributes to the construction of ITER

Physicists and engineers design in Jülich, with support of several European partners, a diagnostic system for the experimental tokamak ITER. This largest fusion device worldwide, an international endeavour, is under construction in Cadarache, in the south of France. The Charge-eXchange Recombination Spectroscopy diagnostic developed in Jülich shall contribute to the measurement of the ion temperature and of the concentration of numerous species in the plasma chamber. A Framework Agreement with the European agency “Fusion for Energy” foresees a support by F4E of up to 5.8 Million Euro until December 2020, before entering the so-called procurement phase. More: Jülich contributes to the construction of ITER …

Wolfram-Divertor für ITER

A Full-tungsten Divertor for ITER

The international fusion experiment ITER shall be equipped from the beginning with a divertor made solely of tungsten. This decision by the ITER Council was the result of a specific Final Design Review of the Full Tungsten Divertor Variant which was held in Cadarache in 2013 under the lead of Jülich. By way of a follow-up, our experts have also chaired the discussions on the shaping of the aforesaid divertor, better say of the divertor targets made of tungsten mono-blocks. More: A Full-tungsten Divertor for ITER …