APS Logo

Cross field transport in low energy beam produced plasma

POSTER

Abstract

Currently, plasma diffusion across magnetic field lines in low temperature plasma devices is not well understood. In this work we study the collection of plasma at a large electrode oriented orthogonal to an applied magnetic field along which a low energy electron beam is injected. Here the electron beam is used with background argon gas to generate the plasma. The cross-field diffusion of cold plasma electrons to the biased orthogonally oriented electrode is studied as a function of field strength and gas pressure. The local electron energy distribution function is characterized as well as the sheath thickness. Behavior in the transverse diffusion coefficient is inferred and compared with that which one would expect for classical diffusion.

Presenters

  • Elijah J Wilson

    University of Michigan

Authors

  • Elijah J Wilson

    University of Michigan

  • John E Foster

    University of Michigan