Effect of equilibrium radial electric field on trapped-particle stability in tandem mirrors | Zendy

J. Kesner | Zendy; Barton Lane | Zendy

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Effect of equilibrium radial electric field on trapped-particle stability in tandem mirrors

Author(s) -

J. Kesner,

Barton Lane

Publication year - 1985

Publication title -

the physics of fluids

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.125

0

eISSN - 2163-4998

pISSN - 0031-9171

DOI - 10.1063/1.865076

Subject(s) - physics , electric field , instability , electron , atomic physics , particle (ecology) , tandem , rotation (mathematics) , classical mechanics , mechanics , quantum electrodynamics , computational physics , quantum mechanics , oceanography , materials science , geometry , mathematics , composite material , geology

A low‐beta tandem‐mirror trapped‐particle instability theory is developed for arbitrary azimuthal mode number including the effects of radial equilibrium electric fields. A stability window is seen to exist for inward‐pointing electric fields even when passing electrons bounce beyond passing ions. This stability window can persist at zero radial electric field when the instability drive is sufficiently small. The theory also predicts the possibility of an additional instability when E×B rotation is present: a rotationally driven trapped‐particle mode.

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