Molecular Beam Studies of Low Energy Reactions.
Abstract
Chemi-ionization and ion-molecule reactions involving metastable and ground-state atoms are studied by merging beams at low relative energies (i.e., 0.01 to 10 or 20 eV). Some theories exist for chemi-ionization involving collisions of metastable and ground-state rare gases. There is very little experimental data to test these theories over a range of relative kinetic energy from 0.01 to 10 or 20 eV. We will supply such data. Theoretical work for collisions between two metastables is almost non-existent, and experimental data are scant. We will supply experimental information such as absolute and relative cross sections and branching ratios for associative to Penning ionization. This information should establish patterns to test those calculations that do exist and will stimulate further theory. Our chemi-ionization data also will produce some information on unknown potentials for the systems A*B and C*D, where A, B, C, and D are atoms and asterisks denote metastables. This information includes well depths and the dependence of the long range potential on internuclear separation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1983
- Accession Number
- ADA126091
Entities
People
- R. H. Neynaber
- S. Y. Tang
Organizations
- University of California, San Diego