Neutral Beam Interactions with Materials.
Abstract
A duopigatron has been used to accelerate ion and neutral beams of hydrogen, argon krypton, and xenon. An important class of ion source plasma instabilities has been investigated. The frequency of source plasma oscillations scale as the square root of ion mass. Ion extraction efficiencies for the various mass species show excellent agreement with theory in the transition from the space charge imited regime to the ion saturation regime. Displaced aperture grids with geometic focusing have been studied. Ruby laser ablation plasma experiments are underway and the ablation plasma parameters have been measured. Theoretical research has been directed towards developing analytic expressions for neutral beam stopping in solid matter in order to compare with ion beam stopping. A second part of the theoretical effort concerns coupling of three computational physics models to simulate the interaction between a neutral/ion beam with a target ablation plasma.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1984
- Accession Number
- ADA145636
Entities
People
- J. J. Duderstadt
- R. M. Gilgenbach
- R. S. Ong
Organizations
- University of Michigan