Secondary electron emission-capacitive probes for plasma potential measurements in plasmas with hot electrons

En Yao Wang, N. Hershkowitz, D. Diebold, T. Intrator, R. Majeski, H. Persing, G. Severn, B. Nelson, Y. J. Wen

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

It is shown that a secondary electron emission-capacitive probe can determine the plasma potential when Te ≥50 eV. The probe is wideband (1 Hz to greater than 20 MHz) and relatively simple to operate. The Phaedrus-B tandem mirror plasma where Te ∼40-60 eV and n≅5×1012 cm-3 is used to verify this technique.

Original languageEnglish (US)
Pages (from-to)4786-4790
Number of pages5
JournalJournal of Applied Physics
Volume61
Issue number10
DOIs
StatePublished - 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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