Abstract
A microwave interferometer is described, by which the electron density in a small volume inside of a plasma can be measured. By dielectric rods acting as waveguides the microwave is led to this volume. For a given electron density the phase shift is calculated for this volume and for the dielectric rods. By a suitable choice of the radius and the dielectric constant of the rods the phase shift along the rods can be surpressed. The influence of plasma sheaths is discussed. In a special application to the plasma of the negative glow these interferometric measurements are compared with Langmuir probe measurements.
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Kreuzer, H. J.: Diplomarbeit Bonn 1966.
Die numerischen Rechnungen dieser Arbeit wurden auf der IBM 7090/1410-Rechenanlage des Instituts für Instrumentielle Mathematik an der Universität Bonn durchgeführt. Den Herren Direktoren dieses Instituts danken wir für die großzügige Bereitstellung von Rechenzeit. Außerdem gilt unser Dank der Deutschen Forschungsgemeinschaft für die finanzielle Unterstützung dieser Arbeit.
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Kreuzer, H.J., Müller, K.G. Dielektrische Wellenleiter als Plasmasonden. Z. Physik 200, 541–555 (1967). https://doi.org/10.1007/BF01326244
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DOI: https://doi.org/10.1007/BF01326244