Abstract

The theory of stable plasma diffusion is discussed, and basic experimental data on diffusion in magnetic fields are surveyed. The analysis of experimental data showed that in many cases the diffusion of charged particles across a strong magnetic field is much faster than predicted by theory. In the presence of currents in the plasma or with strongly directed particle motion (in positive discharge cylinder, ~n discharge with oscillating elections, and in strongly ionized plasma) the diffusion agrees with the theoretical prediction only for small magnetic fields. With larger fields the diffusion rate is faster. The observed abnormally fast particle transport across magnetic fields was accounted for in the development of instabilities, oscillations, and noises. 122 references. (R.V.J.)

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