Combined drift-tube and beam luminescence study of the charge-transfer reaction of He/sup +/ with Xe in the energy range from thermal (200 and 300 K) up to 2000 eV

Journal Article · Thu Jul 01 04:00:00 EDT 1982 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.26.93· OSTI ID:6864475

Howorka, F; Kuen, I; Villinger, H; Lindinger, W; Futrell, J H

Drift-tube studies of the charge-transfer reaction of He/sup +/ with Xe show that the rate constant increases steeply from 4 x 10 cm sec/sup -1/ at 200 K to 7 x 10 cm/sup 3/ sec/sup -1/ at 300 K and 1 x 10/sup -9/ cm/sup 3/ sec/sup -1/ at 1 eV. The data join smoothly onto earlier beam studies of the total charge-transfer cross section. The cross sections for emission of excited Xe/sup +/ states formed in the reaction were investigated in the energy region 1--2000 eV. Here good agreement is found with data reported earlier at higher energies. The dependence of emission cross sections on He/sup +/ kinetic energy exhibits several maxima which can be explained on the basis of a Landau-Zener avoided-crossings model which is also consistent with other experimental features of the He/sup +/-Xe system.

• Research Organization: Institut fuer Experimentalphysik, Leopold Franzens Universitaet, A 6020 Innsbruck, Austria
• OSTI ID: 6864475
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 26:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAM LUMINOSITY
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DATA
DRIFT TUBES
ELEMENTS
ENERGY RANGE
EV RANGE
EV RANGE 01-10
EV RANGE 10-100
EV RANGE 100-1000
EXPERIMENTAL DATA
FLUIDS
GASES
HELIUM IONS
INFORMATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
LOW TEMPERATURE
LUMINESCENCE
MEDIUM TEMPERATURE
NONMETALS
NUMERICAL DATA
RARE GASES
XENON
XENON IONS