Electron Acceleration in the Field-reversed Configuration (FRC) by Slowly Rotating Odd-parity Magnetic Fields

Glasser, Alan H. ; Cohen, Samuel A.

Princeton University. Plasma Physics Laboratory.

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

DOI  :  10.2172/786570
RP-ID  :  PPPL-3554
RP-ID  :  AC02-76CH03073
RP-ID  :  786570

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-aplitude, slowly rotating, odd-parity magnetic fields (RFos). RMFos cause electron heating by toroidal acceleration near the 0-point line and by field-parallel acceleration away from it, both followed by scattering from magnetic-field inhomogeneities. Electrons accelerated along the 0-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.