Open AccessSmall-scale density fluctuations in the adiabatic toroidal compressor
Author(s) -
E. Mazzucato
Publication year - 1976
Language(s) - English
Resource type - Reports
DOI - 10.2172/4096559
Subject(s) - gyroradius , physics , adiabatic process , atomic physics , tokamak , amplitude , plasma , radius , electron density , spectral density , wavelength , computational physics , range (aeronautics) , nuclear physics , optics , quantum mechanics , materials science , statistics , computer security , mathematics , computer science , composite material
A new class of density fluctuations has been observed in the ATC tokamak by using spectral analysis of scattered microwaves. The observed frequency spectrum is consistent with that of drift waves with amplitudes that are maximum in the wavelength range 0.5 to 1.0 cm where finite ion Larmor radius effects are important for plasma stability. The total density fluctuation is n tilde/sub e/ greater than or equal to 5 x 10$sup -3$ anti n/sub e/. It is estimated that these fluctuations could account for a large fraction of the electron energy losses of the ATC discharge. (auth