Surface Production of Ions
Abstract
Surface production of negative hydrogen ions by electron transfer from solid surfaces to backscattered hydrogen atoms was investigated. The low-energy hydrogen atoms were produced by thermal dissociation or electron impact dissociation of hydrogen gas and by deceleration of a proton beam. A highly stable cesium oxide converter surface, giving the highest observed yield for surface production of H-ions, was developed. A microwave discharge producing an intense flux of superthermal hydrogen atoms was built and tested. This opens up new approaches to the design of H-ion sources. Resonant charge transfer in hydrogen atom scattering from surfaces was theoretically studied. Several models of solid state cesium ion guns were developed and used for surface studies.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 26, 1992
- Accession Number
- ADA253434
Entities
People
- Milos Seidl
Organizations
- Stevens Institute of Technology