Investigation of High Voltage Breakdown and Arc Localization in RF Structures

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Description

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 ... continued below

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4 pages

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Bigelow, T.S.; Goulding, R.H. & Swain, D.W. April 12, 1999.

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Description

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.

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4 pages

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  • 13th Topical Conference on Applications of Radio Frequency Power to Plasmas, Princeton, NJ, April 12-14, 1999

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  • Other: DE00007626
  • Report No.: ORNL/CP-103386
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 7626
  • Archival Resource Key: ark:/67531/metadc723486

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  • April 12, 1999

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 15, 2016, 12:23 p.m.

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Bigelow, T.S.; Goulding, R.H. & Swain, D.W. Investigation of High Voltage Breakdown and Arc Localization in RF Structures, article, April 12, 1999; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc723486/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.