Propagation of Neutralized Ion Beams.
Final technical rept. 1 Oct 85-31 Dec 87,
CALIFORNIA UNIV IRVINE DEPT OF PHYSICS
Pagination or Media Count:
The propagation of plasmoids neutralized beams in a vacuum transverse magnetic field has been studied in the UCI laboratory for several years. The most recent experiments are aimed at studying the plasmoid propagation dynamics and losses in the presence of a background, magnetized plasma which is intended to short the induced polarization electric field and stop the beam. Preliminary results indicate that the beam propagation losses increase with the background plasma density. Principal diagnostics include magnetically insulated Faraday cups, floating potential probes, calorimeters, microwave interferometer, and thermal-witness paper. Experiments in the near future will use an improved accelerator and transverse-field coil system which allows higher energy, 500 keV, higher current density plasmoids to be studied this generator will improve the beam uniformity and angular divergence to allow beam propagation for up to five meters and permit study of losses from surface erosion. Keywords Plasmoids Propagation Magnetic field.
- Particle Accelerators
- Plasma Physics and Magnetohydrodynamics