Return to search

Velocity Space Degrees of Freedom of Plasma Fluctuations

<p>This thesis demonstrates a measurement of a plasma fluctuation
velocity-space cross-correlation matrix using laser induced fluorescence.
The plasma fluctuation eigenmode structure on the ion velocity distribution
function can be empirically determined through singular value decomposition
from this measurement. This decomposition also gives the relative strengths
of the modes as a function of frequency. Symmetry properties of the matrix
quantify systematic error. The relation between the eigenmodes and plasma
kinetic fluctuation modes is explored. A generalized wave admittance is
calculated for these eigenmodes. Since the measurement is a localized
technique, it may be applied to plasmas in which a single point measurement
is possible, multipoint measurements may be difficult, and a velocity
sensitive measurement technique is available.

Identiferoai:union.ndltd.org:PROQUEST/oai:pqdtoai.proquest.com:10263114
Date22 March 2018
CreatorsMattingly, Sean Walter
PublisherThe University of Iowa
Source SetsProQuest.com
LanguageEnglish
Detected LanguageEnglish
Typethesis

Page generated in 0.0022 seconds