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

Af: Michael Hubeny Engelsk Paperback

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

Af: Michael Hubeny Engelsk Paperback
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.
Produktdetaljer
Sprog: Engelsk
Sider: 126
ISBN-13: 9783030125387
Indbinding: Paperback
Udgave:
ISBN-10: 3030125386
Kategori: Plasmafysik
Udg. Dato: 14 aug 2020
Længde: 0mm
Bredde: 155mm
Højde: 235mm
Forlag: Springer Nature Switzerland AG
Oplagsdato: 14 aug 2020
Forfatter(e): Michael Hubeny
Forfatter(e) Michael Hubeny


Kategori Plasmafysik


ISBN-13 9783030125387


Sprog Engelsk


Indbinding Paperback


Sider 126


Udgave


Længde 0mm


Bredde 155mm


Højde 235mm


Udg. Dato 14 aug 2020


Oplagsdato 14 aug 2020


Forlag Springer Nature Switzerland AG

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