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The Dynamics of Electrons in Linear Plasma Devices and Its Impact on Plasma Surface Interaction

Af: Michael Hubeny Engelsk Hardback

The Dynamics of Electrons in Linear Plasma Devices and Its Impact on Plasma Surface Interaction

Af: Michael Hubeny Engelsk Hardback
Tjek vores konkurrenters priser
Turbulence 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.
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Turbulence 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.
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Se mere i:
Produktdetaljer
Sprog: Engelsk
Sider: 126
ISBN-13: 9783030125356
Indbinding: Hardback
Udgave:
ISBN-10: 3030125351
Kategori: Plasmafysik
Udg. Dato: 1 mar 2019
Længde: 0mm
Bredde: 155mm
Højde: 235mm
Forlag: Springer Nature Switzerland AG
Oplagsdato: 1 mar 2019
Forfatter(e): Michael Hubeny
Forfatter(e) Michael Hubeny

Kategori Plasmafysik

ISBN-13 9783030125356

Sprog Engelsk

Indbinding Hardback

Sider 126

Udgave

Længde 0mm

Bredde 155mm

Højde 235mm

Udg. Dato 1 mar 2019

Oplagsdato 1 mar 2019

Forlag Springer Nature Switzerland AG