The effects of ICRF heating on plasma edge conditions in PLT

P. L. Colestock, S. A. Cohen, J. C. Hosea, D. Q. Hwanq, G. J. Greene, J. R. Wilson, M. Ono, D. Manos, R. Budny, G. Hammett, R. Kaita

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Abstract

The interaction of ICRF heating with the plasma edge in Princeton large torus (PLT) is reviewed and possible mechanisms responsible for the observations are discussed. Ion and neutral sputtering are found to be the most significantproducers of impurities, which are observed to increase in moderate amounts during ICRF heating. Collisional edge heating by the rf is evaluated as a possible explanation of measured electron density increases and particle fluxes. Antenna conditioning is also discussed, relating to the processing necessary to achieve the highest power handling capability perantenna in PLT.

Original languageEnglish (US)
Pages (from-to)1211-1217
Number of pages7
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume3
Issue number3
DOIs
StatePublished - May 1985

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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    Colestock, P. L., Cohen, S. A., Hosea, J. C., Hwanq, D. Q., Greene, G. J., Wilson, J. R., Ono, M., Manos, D., Budny, R., Hammett, G., & Kaita, R. (1985). The effects of ICRF heating on plasma edge conditions in PLT. Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, 3(3), 1211-1217. https://doi.org/10.1116/1.573066