Dissociative recombination and excitation of D sub 3 sup

Measurements of the dissociative recombination of deexcited D{sub 3}{sup +} ions yield cross sections similar at low energies to those found for H{sub 3}{sup +} (H. Hus {ital et} {ital al}., Phys. Rev. A 38, 658 (1988)). Previous measurements (J. B. A. Mitchell {ital et} {ital al}., J. Phys. B 17, L...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 1991-06, Vol.43:11
Main Authors: Van der Donk, P., Yousif, F.B., Mitchell, J.B.A.
Format: Article
Language:English
Subjects:
640304 - Atomic, Molecular & Chemical Physics- Collision Phenomena
ATOMIC AND MOLECULAR PHYSICS
BEAM DYNAMICS
BEAM-BEAM INTERACTIONS
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DEUTERIUM IONS
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ENERGY DEPENDENCE
ENERGY-LEVEL TRANSITIONS
EXCITATION
HYDROGEN IONS
HYDROGEN IONS 3 PLUS
ION COLLISIONS
IONS
ISOTOPE EFFECTS
MOLECULAR IONS
RECOMBINATION
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Summary:Measurements of the dissociative recombination of deexcited D{sub 3}{sup +} ions yield cross sections similar at low energies to those found for H{sub 3}{sup +} (H. Hus {ital et} {ital al}., Phys. Rev. A 38, 658 (1988)). Previous measurements (J. B. A. Mitchell {ital et} {ital al}., J. Phys. B 17, L909 (1984)) performed with excited ions indicated that there was an isotope effect giving rise to a larger cross section for H{sub 3}{sup +} than for D{sub 3}{sup +}. This effect can in fact be explained in terms of differing vibrational-state populations in those studies rather than by molecular-dynamics arguments. Dissociative excitation measurements for D{sub 3}{sup +} are found to contain a wealth of resonance structure.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.43.5971