Electron Acceleration in the Field-reversed Configuration (FRC) by Slowly Rotation Odd-parity Magnetic Fields (RMF[subscript o])

Glasser, A.H. ; Cohen, S.A.

Princeton University. Plasma Physics Laboratory.

关键词: Acceleration;    Heating;    Magnetic Fields;    70 Plasma Physics And Fusion Technology;    Geometry;   

DOI  :  10.2172/781483
RP-ID  :  PPPL-3554
RP-ID  :  AC02-76CH03073
RP-ID  :  781483

美国|英语

来源: UNT Digital Library

【 摘 要 】

The trajectories of individual electrons are studied numerically in a 3D, prolate, FRC [field-reversed configuration] equilibrium magnetic geometry with added small-amplitude, slowly rotating, odd-parity magnetic fields (RMFos). RMFos cause electron heating by toroidal acceleration near the O-point line and by field-parallel acceleration away from it, both followed by scattering from magnetic-field inhomogeneities. Electrons accelerated along the O-point line move antiparallel to the FRC's current and attain average toroidal angular speeds near that of the RMFo, independent of the sense of RMFo rotation. A conserved transformed Hamiltonian, dependent on electron energy and RMFo sense, controls electron flux-surface coordinate.