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Averaging, passages through resonances, and captures into resonances in dynamics of charged particles

by Prof. Anatoly Neishtadt (Loughborough University - UK)

Apr 07, 2014 from 11:00 AM to 12:30 PM

Where Aula Teorici - Via Irnerio 46

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Abstract:

A study of motion of  charged particles in the  field of an electromagnetic  or electrostatic  wave  propagating in plasma  in the presence of  a uniform stationary  background magnetic field is a  classical problem in plasma physics.  Under different relations between parameters  of this problem completely different dynamical phenomena take place.  In this talk I am planning to  describe   phenomena of  capture into resonance and scattering on resonance that occur  in the case of slow  high frequency waves  and a weak background magnetic field. Capture into resonance may lead to  unlimited particle acceleration along the front of the wave (so called surfatron acceleration).

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