Initial electron bernstein wave emission measurements on the TJ-II stellarator

J. B.O. Caughman, Á Fernández, Á Cappa, F. Castejón, J. M. García-Regaña, D. A. Rasmussen, J. B. Wilgen

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Thermal electron emission at 28 GHz has been measured on the TJ-II stellarator. The emission from neutral beam-heated overdense plasmas, where the plasma density is greater than the ordinary-mode (O-mode) cutoff density, is consistent with electron thermal emission from mode-converted electron Bernstein waves (EBWs) via the Bernstein wave to extraordinary mode to ordinary mode scenario (B-X-O Emission from underdense plasmas without neutral beam injection is consistent with the measurement of oblique electron cyclotron emission. Elec-tron Bernstein wave emission measurements are being made to determine the optimum launch angle for planned EBW heating experiments and also to provide an indication of electron temperature evolution in overdense plasmas on TJ-II.

Original languageEnglish
Pages (from-to)41-47
Number of pages7
JournalFusion Science and Technology
Volume57
Issue number1
DOIs
StatePublished - Jan 2010

Keywords

  • Electron bernstein wave
  • Microwave emission
  • Tj-ii stellarator

Fingerprint

Dive into the research topics of 'Initial electron bernstein wave emission measurements on the TJ-II stellarator'. Together they form a unique fingerprint.

Cite this