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Particle-in-cell modeling of field-reversed configuration formation by odd-parity rotating magnetic fields

Author: Dale R. Welch
Requested Type: Consider for Invited
Submitted: 2009-12-03 12:20:02

Co-authors: S. A. Cohen, T. C. Genoni

Contact Info:
Voss Scientific
418 Washington St. SE
Albuquerque, NM   87108
USA

Abstract Text:
We report on the first 3-D, fully electromagnetic kinetic modeling of field-reversed-configuration formation by odd-parity rotating magnetic fields (RMFo). Plasma particle trajectories are advanced with explicit energy-conserving particle-in-cell techniques that include the Lorentz force, atomic physics effects, externally applied time-varying electromagnetic fields, and material boundary conditions. The particle-in-cell results show magnetic-separatrix formation and field reversal are attained within a few microseconds. Appreciable azimuthal current and plasma pressure exist outside the magnetic separatrix whose shape is strongly modulated by internal flux conservers and RMFo phase. The predicted plasma density, electron temperature, and electron energy distribution compare favorably with RMFo experiments.

Characterization: A2,E10

Comments:
Talk should be placed with Field Reversed Configuration talks and/or computation talks.