Fundamental processes in low energy collisions of alkali anions and atoms
Negative ion sources often employ alkali metal atoms in one way or another in order to increase their yield. Models which describe equilibrium conditions or the nature of energy transport within these sources require, among other things, information about the two-body cross sections for various scattering channels which involve either alkali negative ions or alkali atoms. The purpose of this report is to provide a brief summary of recent experimental observations in which collisions of alkali anions (M/sup -/) with various atoms and molecules and collisions of H/sup -/ and D/sup -/ with alkali atoms (M) have been investigated. The energy range of the experiments, 5 < E < 500 eV, includes those kinetics energies often found in discharge-type ion sources. The specific experiments which will be discussed focus upon measurements of total cross sections for collisional electron detachment and charge transfer of negative ions. 16 refs., 7 figs.
- Research Organization:
- College of William and Mary, Williamsburg, VA (USA). Dept. of Physics
- DOE Contract Number:
- AS05-79ER10371
- OSTI ID:
- 7057423
- Report Number(s):
- CONF-8610115-4; ON: DE87002705
- Resource Relation:
- Conference: 4. international symposium on the production and neutralization of negative ions and beams, Upton, NY, USA, 27 Oct 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fundamental processes in low energy collisions of alkali anions and atoms
Negative ion detachment cross sections. Progress report, March 1, 1982-February 28, 1985
Related Subjects
ANIONS
ION-ATOM COLLISIONS
RARE GASES
ARGON
CARBON DIOXIDE
CESIUM IONS
CHARGE EXCHANGE
CROSS SECTIONS
ELECTRON DETACHMENT
EV RANGE 01-10
EV RANGE 10-100
EV RANGE 100-1000
EXPERIMENTAL DATA
HYDROGEN IONS 1 MINUS
ION-MOLECULE COLLISIONS
NEON
POTASSIUM IONS
SODIUM IONS
ATOM COLLISIONS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COLLISIONS
DATA
ELEMENTS
ENERGY RANGE
EV RANGE
FLUIDS
GASES
HYDROGEN IONS
INFORMATION
ION COLLISIONS
IONS
MOLECULE COLLISIONS
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena