The study of stochastic charged particle acceleration by electromagnetic waves in the uniform magnetic field

• Main Authors: Shen,Jie Pan, 沈介磐
• Other Authors: Dawn,Trine Yie
• Format: Others
• Language: en_US
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/68809201774250171302

碩士 === 國立清華大學 === 核子工程學系 === 83 === A general relativistic Hamiltonian formalism is established including the consideration of several mixture electromagnetic and electrostatic waves propagating obliquely to an external, uniform, static magnetic field. The mechanism of unlimited particle aceleration is explained and relativistic effect is proved to play a crucial role, which determins the topology of Hamiltonian surface. Both accidentally and intrinsically degenerate cases are thoroughly considered. The stochasticity threshold based on overlap criterion is given. An emphasis on instrinsic degeneracy is discussed. Especially, the well-know autoresonance mechanism is shown to be a special case of intrinsic degeneracy. Finally, an application of intrinsic degeneracy to a novel enhanced acceleration mechanism in two waves is asserted and several numerical results are present.