Extended classical over-barrier model for collisions of highly charged ions with conducting and insulating surfaces

Journal Article · Thu Jan 01 00:00:00 EST 1998 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.57.338· OSTI ID:565857

Ducree, J J; Casali, F; Thumm, U ^[1]

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1. J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506-2604 (United States)

We have extended the classical over-barrier model to simulate the neutralization dynamics of highly charged ions interacting under grazing incidence with conducting and insulating surfaces. Our calculations are based on simple model rates for resonant and Auger transitions. We include effects caused by the dielectric response of the target and, for insulators, localized surface charges. Characteristic deviations regarding the charge-transfer processes from conducting and insulating targets to the ion are discussed. We find good agreement with previously published experimental data for the image energy gain of a variety of highly charged ions impinging on Au, Al, LiF, and KI crystals. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 565857
• Journal Information: Physical Review A, Vol. 57, Issue 1; Other Information: PBD: Jan 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALUMINIUM
GOLD
LITHIUM FLUORIDES
POTASSIUM IODIDES
MULTICHARGED IONS
ION COLLISIONS
BEAM NEUTRALIZATION