Biased electrodes for SOL control in NSTX

  • S. J. Zweben
  • , R. J. Maqueda
  • , A. L. Roquemore
  • , C. E. Bush
  • , R. Kaita
  • , R. J. Marsala
  • , Y. Raitses
  • , R. H. Cohen
  • , D. D. Ryutov

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Small electrodes were installed in the outer-midplane edge of NSTX to attempt to control the local width of the scrape-off layer (SOL) by creating an outward EpolxB flow. When the applied voltage between electrodes was ±90 V, the density between these electrodes increased by a factor of 3-10 over a radial width of ∼4 cm. Thus a local control of the SOL plasma density was obtained.

Original languageEnglish (US)
Pages (from-to)417-420
Number of pages4
JournalJournal of Nuclear Materials
Volume390-391
Issue number1
DOIs
StatePublished - Jun 15 2009

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • General Materials Science
  • Nuclear Energy and Engineering

Keywords

  • 52.25.Fi
  • 52.40.Hf
  • 52.40.Kh
  • F2.55.Fa
  • Rk

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