Session RP1 - Poster Session VIII.
POSTER session, Thursday afternoon, October 30
Fran Hill Southeast Exhibit Hall, ACC
Experiments with symmetric neutralized ion beams consisting of H^+ and H^- ions are being conducted. The H^+ and H^- beams are transported and merged in RF quadrupoles and are then injected into a magnetic field. The ability of the beam to propagate across the magnetic field due to the formation of a polarization electric field that cancels the magnetic field deflection is being explored. Approximate quantities for the proof-of-principle experiment are: beam energy 1 keV, beam current density 10^9 mA/cm^2, magnetic field 100 G. 3D PIC simulation of the cross-field propagation process is also being carried out, with particular attention to the effect of a background plasma and other loss mechanisms such as beam expansion. The injection of arrays of higher energy beams of this type into magnetic fusion devices for heating, fueling, current drive, and diagnostics is being considered.