TitleThe Dynamics of Electrons in Linear Plasma Devices and Its Impact on Plasma Surface Interaction
Author(s)Hubeny, Michael
PublicationCham, Springer International Publishing, 2019.
DescriptionXIV, 126 p. 67 illus., 37 illus. in color : online resource
Abstract NoteTurbulence in plasma surface interaction holds crucial uncertainties for its impact on material erosion in the operation of fusion reactors. In this thesis, the design, development and operation of a Thomson scattering diagnostic and its novel implementation with fast visual imaging created a versatile tool to investigate intermittently occuring plasma oscillations. Specifically, ballistic transport events in the plasma edge, constituting turbulent transport, have been targeted in this thesis. With the help of a custom photon counting algorithm, the conditional averaging technique was applied on Thomson scattering for the first time to allow spatial and pseudo-time-resolved measurements. Since plasma turbulence and the emerging transport phenomena are comparable in most magnetized devices, the diagnostic development and the results from the linear plasma device PSI-2 are useful for an implementation of similar techniques in larger fusion experiments. Furthermore, the obtained results indicate a strong enhancement of erosion with turbulent transport and thus underline the importance of dedicated experiments investigating plasma turbulence in the framework of erosion in future fusion reactors
ISBN,Price9783030125363
Keyword(s)1. ATOMS 2. Atoms and Molecules in Strong Fields, Laser Matter Interaction 3. Coatings 4. Corrosion and anti-corrosives 5. EBOOK 6. EBOOK - SPRINGER 7. ENERGY SYSTEMS 8. Interfaces (Physical sciences) 9. PHYSICS 10. PLASMA (IONIZED GASES) 11. PLASMA PHYSICS 12. Surface and Interface Science, Thin Films 13. Surfaces (Physics) 14. THIN FILMS 15. TRIBOLOGY 16. Tribology, Corrosion and Coatings
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