Small-scale magnetic fluctuations inside the Macrotor tokamak

Details Small-scale magnetic fluctuations inside the Macrotor tokamak Small-scale magnetic fluctuations inside the Macrotor tokamak

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979phrvl..42.1270z&link_type=abstract

Physical Review Letters, vol. 42, May 7, 1979, p. 1270-1274. Research supported by the Fannie and John Hertz Foundation;

Physics

Plasma Physics

85

Magnetic Variations, Magnetohydrodynamic Stability, Plasma Physics, Tokamak Devices, Bandpass Filters, Diamagnetism, Electron Mobility, Energy Technology, Fourier Transformation, Magnetic Flux, Spectrum Analysis

Scientific paper

Magnetic pickup loops inserted in the Macrotor tokamak have revealed a broad spectrum of oscillation in B sub r and B sub p up to a frequency of 100 kHz. The high frequency oscillations of B sub r have short radial and poloidal correlation lengths (L less than 5 cm), in contrast to the usual Mirnov oscillations with a frequency of 7 kHz and L much greater than 5 cm. This study represents the first observation of small-scale radial magnetic fluctuations inside a tokamak plasma. Such fluctuations can in theory cause enhanced radial energy flow through a local restructuring or destruction of the magnetic flux surfaces.

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