1. Plasma–Surface Interactions Under High Heat and Particle Fluxes
- Author
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Wenxin Liu, JJ Jakub Zielinski, Hui Xu, Irem Tanyeli, van den Ad M Berg, F Fan Liu, Thomas Morgan, K. Bystrov, and G. De Temmerman
- Subjects
Fusion ,Materials science ,Orders of magnitude (temperature) ,carbon ,Divertor ,General Engineering ,Plasma ,Fusion power ,plasma-surface interactions ,linear plasma generator ,Ion ,lcsh:TA1-2040 ,Physics::Plasma Physics ,Chemical physics ,Etching (microfabrication) ,Physics::Space Physics ,refractory metals ,Deposition (phase transition) ,Atomic physics ,lcsh:Engineering (General). Civil engineering (General) - Abstract
The plasma-surface interactions expected in the divertor of a future fusion reactor are characterized by extreme heat and particle fluxes interacting with the plasma-facing surfaces. Powerful linear plasma generators are used to reproduce the expected plasma conditions and allow plasma-surface interactions studies under those very harsh conditions. While the ion energies on the divertor surfaces of a fusion device are comparable to those used in various plasma-assited deposition and etching techniques, the ion (and energy) fluxes are up to four orders of magnitude higher. This large upscale in particle flux maintains the surface under highly non-equilibrium conditions and bring new effects to light, some of which will be described in this paper.
- Published
- 2013