Ionization and charge exchange in K/sup +/--Ar, Kr, Xe collisions for ion energies 0. 5--7. 0 keV

Journal Article · Thu Aug 01 04:00:00 EDT 1985 · Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States)

OSTI ID:6097727

Kikiani, B I; Lomsadze, R A; Mosulishvili, N O; Gochitashvili, M R; Saliya, Z E; Lavrov, V M

Inelastic low-energy collisions between alkali metal ions and inert gas atoms make it difficult to measure the total ionization and charge-exchange cross sections sigma by using a transverse electric field, because sigma has a threshold dependence on the angle and energy, and because autoionizing states are preferentially excited. The conventional transverse field technique is modified so that it becomes capable of measuring not only sigma but also the energy distributions of the secondary ions and the effects due to scattering of the primary ions. Measured values are cited for the total ionization and charge-exchange cross sections for collisions of K/sup +/ with Ar, Kr, and Xe atoms at energies 0.5--7.0 keV. Diagrams of the potential curves for the K/sup +/--Ar system are used to discuss the ionization and charge-exchange processes.

• Research Organization: State University, Tbilisi
• OSTI ID: 6097727
• Journal Information: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States) Vol. 30:8; ISSN SPTPA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
AUTOIONIZATION
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELEMENTS
ENERGY
ENERGY LEVELS
ENERGY RANGE
EV RANGE
EV RANGE 100-1000
EXCITED STATES
FLUIDS
GASES
INELASTIC SCATTERING
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
KRYPTON
MEASURING METHODS
NONMETALS
POTASSIUM IONS
RARE GASES
SCATTERING
THRESHOLD ENERGY
XENON