Alkali-negative-ion--molecule collisions

Journal Article · Wed Jan 01 04:00:00 EST 1986 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.33.170· OSTI ID:6327685

Scott, D; Huq, M S; Champion, R L; Doverspike, L D

Absolute total cross sections for electron detachment and charge transfer (including dissociative charge transfer) have been measured for collisions of Na and K with H2, D2, N2, O2, CO, CO2, and CH4 targets. The collision energies of this investigation range from the energetic thresholds for detachment up to 300 eV (in the laboratory frame). In this energy range, electron detachment is observed to be the dominant process for all of the targets except O2. For several of these systems, a simple optical model can be used to reproduce the observed values of the cross sections for detachment. In the case of the CO2 target, some of the detached electrons appear to be due to charge transfer to metastable CO2 . Significant isotope effects are observed for the H2 and D2 targets.

• Research Organization: Department of Physics, College of William and Mary, Williamsburg, Virginia 23185
• OSTI ID: 6327685
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 33:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKANES
ANIONS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DEUTERIUM
ELECTRON DETACHMENT
ELEMENTS
ENERGY RANGE
EV RANGE
HYDROCARBONS
HYDROGEN
HYDROGEN ISOTOPES
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
METHANE
MOLECULE COLLISIONS
NITROGEN
NONMETALS
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POTASSIUM IONS
SODIUM IONS
STABLE ISOTOPES
TOTAL CROSS SECTIONS