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https://hdl.handle.net/2142/72446
Description
Title
X Ray Analysis of a Dense Plasma Focus
Author(s)
Venneri, Francesco
Issue Date
1988
Doctoral Committee Chair(s)
Kim, Kyekyoon
Department of Study
Nuclear Engineering
Discipline
Nuclear Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Physics, Fluid and Plasma
Abstract
Both the experimental and theoretical approaches to the X-ray analysis of a dense plasma focus are explored in this research. Diagnostic techniques and analytical tools were developed to analyze the X-ray production of the dense plasma focus and to optimize its output. Time-resolved temperatures were measured with dispersive rather than filtering X-ray analysis. Densities were measured with a nitrogen interferometer. A radiative-collisional one-dimensional simulation of the plasma focus pinch was constructed with emphasis on the radiation emission from the plasma. The occurrence of radiative collapse was anticipated with the computer simulation and observed experimentally in the case of heavily seeded neon discharges. The addition of an axial magnetic field to stabilize the focus pinch was found to have beneficial effects on the X-ray emission in terms of reliability and improved source geometry.
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