Generalized theory of ICRF convection and modeling of observed density profile modifications on TFTR

Journal Article · Thu Feb 01 00:00:00 EST 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.49507· OSTI ID:285262

DIppolito, D A; Myra, J R ^[1]; England, A C; Hanson, G R; Wilgen, J B ^[2]; Rogers, J H; Majeski, R; Schilling, G; Wilson, J R; Hosea, J C ^[3]

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1. Lodestar Research Corporation, 2400 Central Avenue, Boulder, Colorado 80301 (United States)
2. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
3. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

Reflectometer measurements of the density profile in front of the TFTR Bay-K antenna as a function of antenna phasing and RF power provide a direct test of the theory of ICRF-driven convection. The data is shown to be qualitatively consistent with numerical calculations of the spatial distribution of the RF-sheath-driven {bold E}{times}{bold B} flow. A new picture of RF convection emerges from this work; the previous convective cell model is generalized to include enhanced particle loss caused by open streamlines intersecting the FS. {copyright} {ital 1996 American Institute of Physics.}

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH03073; AC05-84OR21400; FG03-93ER54212
• OSTI ID: 285262
• Report Number(s): CONF-9505105-; ISSN 0094-243X; TRN: 96:020053
• Journal Information: AIP Conference Proceedings, Vol. 355, Issue 1; Conference: 11. topical conference on radio frequency in plasmas, Palm Springs, CA (United States), 17-19 May 1995; Other Information: PBD: Feb 1996
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
ICR HEATING
CONVECTION
TFTR TOKAMAK
MATHEMATICAL MODELS
ANTENNAS
PLASMA DENSITY
PLASMA DIAGNOSTICS
CONFINEMENT TIME