Investigation of High Voltage Breakdown and Arc Localization in RF Structures
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 7626
- Report Number(s):
- ORNL/CP-103386; AT 60 10 30 0; ON: DE00007626
- Resource Relation:
- Conference: 13th Topical Conference on Applications of Radio Frequency Power to Plasmas, Princeton, NJ, April 12-14, 1999
- Country of Publication:
- United States
- Language:
- English
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