Temperature fluctuations and transport in a tokamak edge plasma

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Physics of Fluids B: Plasma Physics; (USA)

DOI:https://doi.org/10.1063/1.859066· OSTI ID:5393984

Lin, H; Bengtson, R D; Ritz, C P ^[1]

---

1. Fusion Research Center, University of Texas, Austin, Texas 78712-1068 (US)

Using the technique first described by Robinson and Rusbridge (Plasma Phys. {bold 11}, 73 (1969)) electron temperature fluctuations have been measured in the scrape-off layer of the TEXT tokamak (Nucl. Technol. Fusion {bold 1}, 479 (1981)) to be {ital {tilde T}}{sub {ital e}}/{ital T}{sub {ital e}} {congruent}0.4{ital {tilde n}}{sub {ital e}}/{ital n}{sub {ital e}}. Particle and energy transport were estimated from {l angle}{ital {tilde n}}{sub {ital e}} {ital {tilde E}}{sub {theta}}{r angle} and {l angle}{ital {tilde T}}{sub {ital e}} {ital {tilde E}}{sub {theta}}{r angle} correlations. The fluctuation-driven particle transport was consistent with earlier measurements and with measurements of global particle confinement. A high correlation of temperature and electric field fluctuations and a low but positive correlation between density and temperature fluctuations were observed.

• OSTI ID: 5393984
• Journal Information: Physics of Fluids B: Plasma Physics; (USA), Journal Name: Physics of Fluids B: Plasma Physics; (USA) Vol. 1:10; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
700103* -- Fusion Energy-- Plasma Research-- Kinetics
CLOSED PLASMA DEVICES
CONFINEMENT
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
ELECTRON TEMPERATURE
END EFFECTS
FLUCTUATIONS
PHYSICAL PROPERTIES
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA DIAGNOSTICS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
VARIATIONS