Michael A. Saville, Ph.D., P.E. (Advisor); Josh Ash, Ph.D. (Committee Member); Yan Zhuang, Ph.D. (Committee Member)
Master of Science in Electrical Engineering (MSEE)
Building upon recent work to estimate electron and ion densities from paired interferograms, the current work develops a model for the 2D interference phase function. Unlike the previous work that only estimated a radial plasma profile from images of a singly exploded straight Cu wire, we estimate 2D properties from a colliding plasma generated from two simultaneously exploded wires. First, a 2D phase model is proposed for the interference patterns of the images taken at 1064 nm and 532 nm. Then, the model parameters are estimated using Fourier analysis. Secondly, the plasma region in each image is partitioned into subregions and analyzed using the Abel transform under the assumption of locally cylindrical conditions. The approach allows for analysis of the 2D plasma profile using semi-automated analysis of a time series of interferograms.
Department or Program
Department of Electrical Engineering
Year Degree Awarded
Copyright 2021, all rights reserved. My ETD will be available under the "Fair Use" terms of copyright law.