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

  • Michael Hubeny

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xiv
  2. Michael Hubeny
    Pages 1-8
  3. Michael Hubeny
    Pages 9-21
  4. Michael Hubeny
    Pages 23-32
  5. Michael Hubeny
    Pages 33-40
  6. Michael Hubeny
    Pages 41-52
  7. Michael Hubeny
    Pages 53-70
  8. Michael Hubeny
    Pages 71-84
  9. Michael Hubeny
    Pages 85-117
  10. Michael Hubeny
    Pages 119-123
  11. Back Matter
    Pages 125-126

About this book

Introduction

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.

Keywords

Thomson Scattering Conditional Average Plasma Turbulence Plasma Transport Intermittent Filament Magnetized Fusion Linear Plasma Generator Physical Sputtering Fast Imaging

Authors and affiliations

  • Michael Hubeny
    • 1
  1. 1.Institute for Climate and Energy Research—Plasma PhysicsResearch Center Jülich GmbHJülichGermany

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-030-12536-3
  • Copyright Information Springer Nature Switzerland AG 2019
  • Publisher Name Springer, Cham
  • eBook Packages Physics and Astronomy
  • Print ISBN 978-3-030-12535-6
  • Online ISBN 978-3-030-12536-3
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site