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Title: Investigation of high voltage breakdown and arc localization in rf structures

Abstract

An effort is underway to improve the voltage standoff capabilities of ion cyclotron range of frequencies (ICRF) heating and current drive systems. One approach is to develop techniques for determining the location of an electrical breakdown (arc) when it occurs. A technique is described which uses a measurement of the reflection coefficient of a swept frequency signal to determine the arc location. The technique has several advantages including a requirement for only a small number of sensors and very simple data interpretation. In addition a test stand is described which will be used for studies of rf arc behavior. The device uses a quarter-wave resonator to produce voltages to 90 kV in the frequency range of 55-80 MHz. (c) 1999 American Institute of Physics.

Authors:
 [1];  [1];  [1]
  1. Oak Ridge National Laboratory, P.O. Box 2009, Oak Ridge, Tennessee 37831-8071 (United States)
Publication Date:
OSTI Identifier:
20216716
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 485; Journal Issue: 1; Other Information: PBD: 20 Sep 1999; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ICR HEATING; RF SYSTEMS; ELECTRIC SPARKS; PLASMA DIAGNOSTICS; CURRENT-DRIVE HEATING; REFLECTIVITY

Citation Formats

Goulding, R. H., Bigelow, T. S., and Swain, D. W. Investigation of high voltage breakdown and arc localization in rf structures. United States: N. p., 1999. Web. doi:10.1063/1.59756.
Goulding, R. H., Bigelow, T. S., & Swain, D. W. Investigation of high voltage breakdown and arc localization in rf structures. United States. doi:10.1063/1.59756.
Goulding, R. H., Bigelow, T. S., and Swain, D. W. Mon . "Investigation of high voltage breakdown and arc localization in rf structures". United States. doi:10.1063/1.59756.
@article{osti_20216716,
title = {Investigation of high voltage breakdown and arc localization in rf structures},
author = {Goulding, R. H. and Bigelow, T. S. and Swain, D. W.},
abstractNote = {An effort is underway to improve the voltage standoff capabilities of ion cyclotron range of frequencies (ICRF) heating and current drive systems. One approach is to develop techniques for determining the location of an electrical breakdown (arc) when it occurs. A technique is described which uses a measurement of the reflection coefficient of a swept frequency signal to determine the arc location. The technique has several advantages including a requirement for only a small number of sensors and very simple data interpretation. In addition a test stand is described which will be used for studies of rf arc behavior. The device uses a quarter-wave resonator to produce voltages to 90 kV in the frequency range of 55-80 MHz. (c) 1999 American Institute of Physics.},
doi = {10.1063/1.59756},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 485,
place = {United States},
year = {1999},
month = {9}
}