Projectile energy loss in multiply ionizing ion-atom collisions

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.51.324· OSTI ID:6713487

Schoene, H; Schuch, R; Datz, S; Schulz, M; Dittner, P F; Giese, J P; Kessel, Q C; Krause, H F; Miller, P D; Vane, C R ^[1]

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1. Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6377 (United States) Atomic Physics, Stockholm University, Frescativagen 24, S-104 05 Stockholm 50 (Sweden) Department of Physics, University of Connecticut, Storrs, Connecticut 06268 (United States)

The projectile energy loss for 7.5--25-MeV C[sup 6+,5+] and F[sup 6+] ions was measured for single collisions with He, Ne, Ar, and Kr as a function of the recoil-ion charge state and the projectile scattering. This energy loss was measured for collisions in which the projectile captured an electron and for those involving just direct ionization. We investigated and found a large average energy transfer (100--250 eV/electron) to the continuum electrons. A strong increase of the scattering angle with recoil-ion charge state was observed for both capture and direct ionization. The results imply that, for smaller impact parameters, higher recoil-ion charge states are produced and that higher energy losses are obtained. We observed a weak target-[ital Z] dependence of the energy loss. The results are compared with [ital n]-body classical-trajectory Monte Carlo calculations by Olson, semiclassical-approximation calculations by Schuch [ital et] [ital al]. [Nucl. Instrum. Methods Phys. Res. Sect. B 42, 566 (1989)], and the energy-deposition model.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6713487
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 51:1; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
CARBON IONS
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY LOSSES
FLUIDS
FLUORINE IONS
GASES
HELIUM
INELASTIC SCATTERING
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
KRYPTON
LOSSES
MULTICHARGED IONS
NEON
NONMETALS
RARE GASES
SCATTERING