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Title:Study of Breakdown/arcing for High Power RF Antennas on Fusion Applications
Author(s):Castano, Carlos Henry
Doctoral Committee Chair(s):Ruzic, David N.
Department / Program:Nuclear Engineering
Discipline:Nuclear Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Nuclear
Abstract:CCl4 and XeF2 were used as sources of halogen ions to take advantage of the ion bombardment for breakdown amelioration by modification of the electrodes. It was found that CCl4 stabilizes the emission current but increases the enhancement factor of copper electrodes. XeF 2 exhibits a self-extinguishing emission current behavior on copper and tungsten electrodes, which allows the electrodes to achieve higher hold-off voltages. To reveal the mechanism by which chemicals modify field emitters on high voltage electrodes a different system with ultra high vacuum, and in-situ diagnostics is required. Further study is recommended.
Issue Date:2006
Description:156 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006.
Other Identifier(s):(MiAaPQ)AAI3250219
Date Available in IDEALS:2015-09-28
Date Deposited:2006

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