Space-potential and density fluctuations in the ISX-B tokamak

The fluctuating plasma potential and electron density has been measured in Ohmic and neutral-beam--heated tokamak discharges. Radial profiles are presented in the outer two-thirds of the plasma, and the E x B transport calculated. The transport is found to be an order of magnitude larger for beam dr...

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1987-09, Vol.59 (12), p.1301-1304
Hauptverfasser:	HALLOCK, G. A, WOOTTON, A. J, HICKOK, R. L
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700101 - Fusion Energy- Plasma Research- Confinement, Heating, & Production 700102 - Fusion Energy- Plasma Research- Diagnostics BEAM INJECTION ELECTRIC HEATING ELECTRON DENSITY Exact sciences and technology FLUCTUATIONS HEATING ISX TOKAMAK JOULE HEATING Magnetic confinement and equilibrium NEUTRAL ATOM BEAM INJECTION Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges PLASMA PLASMA HEATING POTENTIALS RESISTANCE HEATING THERMONUCLEAR REACTORS TOKAMAK TYPE REACTORS VARIATIONS
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Beschreibung
Zusammenfassung:	The fluctuating plasma potential and electron density has been measured in Ohmic and neutral-beam--heated tokamak discharges. Radial profiles are presented in the outer two-thirds of the plasma, and the E x B transport calculated. The transport is found to be an order of magnitude larger for beam driven plasmas. Measurements indicate the linearized Boltzman equation is satisfied in the interior, but not at the plasma edge.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.59.1301