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

Journal Article · Sun Jun 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4883499· OSTI ID:22299984

Romero-Talamás, C. A. ^[1]; Young, W. C. ^[2]; Ellis, R. F.; Hassam, A. B. ^[3]

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1. Department of Engineering, University of Maryland Baltimore County, Baltimore, Maryland 21250 (United States)
2. CPLA, University of Wisconsin, Madison, Wisconsin 53706 (United States)
3. IREAP, University of Maryland, College Park, Maryland 20742 (United States)

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.

• OSTI ID: 22299984
• Journal Information: Physics of Plasmas, Vol. 21, Issue 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

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