Dissociation cross sections of ionic hydrogen clusters by collisions with helium at 60 keV/amu

Journal Article · Tue Feb 01 00:00:00 EST 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.49.1484· OSTI ID:5223892

Ouaskit, S; Farizon, B; Farizon, M; Gaillard, M J; Gerlic, E ^[1]

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1. Institut de Physique Nucleaire de Lyon, Universite Claude Bernard, 43, boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex (France)

The dissociation of fast ionic hydrogen clusters H[sub [ital n]][sup +] by collision with helium atoms has been studied for various incident cluster masses ([ital n]=5,7,...,31) at 60 keV/amu energy. Absolute dissociation cross sections have been measured. No shell effect is observed. As expected, the cluster dissociation cross section increases with [ital n] but exhibits a quasilinear dependence in contrast with the [ital n][sup 2/3] dependence previously observed [M. Chevallier [ital et] [ital al]., Z. Phys. D 2, 87 (1986)] with argon atoms in the same velocity range.

• OSTI ID: 5223892
• Journal Information: Physical Review A; (United States), Vol. 49:2; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HELIUM
ION-ATOM COLLISIONS
HYDROGEN
DISSOCIATION
CROSS SECTIONS
ATOMIC CLUSTERS
IONS
KEV RANGE 10-100
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY RANGE
FLUIDS
GASES
ION COLLISIONS
KEV RANGE
NONMETALS
RARE GASES
664300* - Atomic & Molecular Physics- Collision Phenomena- (1992-)