Instrumentation for Particle-Beams Research Using Laser Excited Merging Beams.
Abstract
A summary of research performed under AFOSR Grant No. 83-0242 is given. The review describes molecular-beam studies of ion-pair production and measurements of the fraction of excited Na atoms, F*, in a composite beam of ground-state and excited Na atoms. Molecular beam techniques will be employed to study two-body reactions that will result in an intense, collimated beam of Li atoms at an energy of several hundred keV. Generating such a beam by charge transfer of a Li(+) beam is not efficient at this energy. It appears that it can most efficiently be produced by forming a Li(-) beam and stripping away valence electrons in a suitable gas. We plan to study reactions associated with the production of Li(-) beam which is formed when a Li(+) beam interacts with a vapor of ground and excited (resonance state) Na atoms. One of the reactions (after Li(+) has been converted to Li) is Li + Na yield Li(-) + Na(+). This will be examined by merging a Li beam with a beam of Na atoms excited with a single frequency dye laser. The instrumentation required to complete this study consists of some laser and optical components, some vacuum equipment, and a laboratory computer system for data acquisition and analysis. This apparatus will supplement as well as rejuvenate an existing merging-beam apparatus.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 21, 1985
- Accession Number
- ADA154155
Entities
People
- R. H. Neynaber
- S. Y. Tang
Organizations
- University of California, San Diego