Dissociation of multicharged CO molecular ions produced in collisions with 97-MeV Ar sup 14+ : Total-kinetic-energy distributions

Journal Article · Sat Feb 29 23:00:00 EST 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.45.2903· OSTI ID:7234449

Sampoll, G; Watson, R L; Heber, O; Horvat, V; Wohrer, K; Chabot, M ^[1]

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1. Cyclotron Institute and Department of Chemistry, Texas A M University, College Station, Texas 77843 (United States)

Transient molecular ions of CO{sup {ital q}+} (where {ital q}=2--7) were produced in single collisions of 97-MeV Ar{sup 14+} projectiles with neutral CO molecules. The resulting dissociation products were identified by coincidence time-of-flight spectroscopy in which the time of flight of the first ion to reach the detector and the time difference between the first ion and its partner were recorded event by event. An iterative matrix-transformation procedure was employed to convert the time-difference spectra for the prominent dissociation channels into total-kinetic-energy distributions. Analysis of the total-kinetic-energy distributions and comparisons with the available data for CO{sup 2+} and CO{sup 3+} from synchrotron radiation experiments led to the conclusion that ionization by Ar-ion impact populates states having considerably higher excitation energies than those accessed by photoionization.

• OSTI ID: 7234449
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 45:5; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ARGON IONS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COLLISIONS
DISSOCIATION
ENERGY
ENERGY RANGE
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONIZATION
IONS
KINETIC ENERGY
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 10-100
MOLECULAR IONS
MOLECULE COLLISIONS
MULTICHARGED IONS
OXIDES
OXYGEN COMPOUNDS
SPECTROMETERS
TIME-OF-FLIGHT SPECTROMETERS