Kinetic Theory of Anomalous Transport of Suprathermal Particles
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چکیده
Investigation of behavior of fast electrons in toroidal discharges was performed. The kinetic equation, describing evolution of fast particle distribution was derived and analyzed. Semi analytical solution of the kinetic equation was obtained into suprathermal energy region. External electric field, anomalous transport, nonuniformity of mean magnetic field and collisions was shown to be an important factors, affecting distribution function. The role of ambipolar electric field was established and identified as an essential factor of the process of diffusion of fast electrons. The effect of strong influence of density profile on diffusion of fast particles was clearly demonstrated. Comparison with the experimental data, obtained on ZT -40M device, was carried out. The agreements with the results of these experiments is observed.
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تاریخ انتشار 1994