Motion of trapped electrons in gyro-resonant electromagnetic field |
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| Affiliation: | 1. Institute of Sound and Vibration Research, University of Southampton, Southampton, SO17 1BJ, UK;2. School of Urban Railway Transportation, Shanghai University of Engineering Science, Shanghai, 201620, China;1. School of Physics, Xidian University, Xi’an 710071, Shaanxi, China;2. Publications Collaborative Innovation Center of Information Sensing and Understanding at Xidian University, Xi’an, Shaanxi, China |
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| Abstract: | It is shown that the phase space of magnetically trapped electrons in plasmas interacting with gyro-resonant electromagnetic waves is divided into two parts. In one, as a particle gains energy its turning point moves towards the region of weaker magnetic field; in the other, energy gain results in the turning point moving towards the region of stronger magnetic field, with possible detrapping. |
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