Effect of Beam Deceleration in the Two-Stream Instability
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概要
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Two-stream instability induced by the interaction between a proton beam and a plasma isinvestigated analytically in consideration of the beam deceleration by the nonlinear effect. Ex-pression of beam deceleration is derived from a modification of the orbit of the beam particle dueto the wave potential. Nonlinear dispersion relation is obtained from a set of equations whichincludes the term of the beam deceleration in addition to the perturbation of the beam velocity.Saturation level of the wave potential is determined from the nonlinear growth rate. Result indicates that the beam deceleration due to the nonlinear interaction provides the saturation levelwhich is almost equal to one obtained by the analyses based on the trapping of beam particles.
- 社団法人日本物理学会の論文
- 1996-04-15
著者
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Fukano Azusa
Tokyo Metropolitan College Of Technology
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Ogasawara Masatada
Faculty Of Engineering Keio University
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