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Title: 100 eV electron temperatures in the Maryland centrifugal experiment observed using electron Bernstein emission

Thermal electron Bernstein emission has been observed at the second harmonic of the electron cyclotron frequency at the mid-plane of the Maryland Centrifugal eXperiment. The emission is received in the X-mode polarization and coupled to the Bernstein wave by the B-X mode conversion process. The average B-X coupling efficiency is approximately 20%. The observed emission indicates thermal electron temperatures an excess of 100 eV in the core of the rotating plasma. The measured electron temperature is consistent with recent ion temperature measurements and indicates that the total energy confinement time exceeds 500 μs.
Authors:
 [1] ;  [2] ;  [3] ; ;  [4]
  1. U.S. Naval Research Laboratory, Washington, DC 20375 (United States)
  2. Department of Engineering, University of Maryland Baltimore County, Baltimore, Maryland 21250 (United States)
  3. CPLA, University of Wisconsin, Madison, Wisconsin 53706 (United States)
  4. IREAP, University of Maryland, College Park, Maryland 20742 (United States)
Publication Date:
OSTI Identifier:
22299984
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; APPROXIMATIONS; BERNSTEIN MODE; CONFINEMENT TIME; CYCLOTRON FREQUENCY; ELECTRON TEMPERATURE; ELECTRONS; EMISSION; EV RANGE 10-100; ION TEMPERATURE; MODE CONVERSION; PLASMA WAVES; ROTATING PLASMA