Low-frequency microinstabilities in the PLT Tokamak

Technical Report · Thu Sep 01 04:00:00 EDT 1977

DOI:https://doi.org/10.2172/7209545· OSTI ID:7209545

Mazzucato, E.

A turbulence with wavelengths in the range 2 to 0.2 cm and with a spectrum in the range of frequencies of drift waves has been observed in the PLT discharge with scattering of microwaves. The total density fluctuation was n tilde/sub e//anti n/sub e/ approximately equal to 5 x 10/sup -3/ - 10/sup -2/. It is estimated that this turbulence can cause an anomalous transport much larger than that predicted by the neoclassical theory. As the PLT discharge developed a central minimum of the electron temperature, an increase of the turbulence level was observed with a very strong poloidal localization on the outside of the plasma torus.

• Research Organization: Princeton Univ., N.J. (USA). Plasma Physics Lab.
• DOE Contract Number: EY-76-C-02-3073
• OSTI ID: 7209545
• Report Number(s): PPPL-1373
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
CLOSED PLASMA DEVICES
DRIFT INSTABILITY
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
INSTABILITY
MICROWAVE RADIATION
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLT DEVICES
RADIATIONS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TURBULENCE