Volume 35, Number 7, September I 1996
|Page(s)||499 - 504|
|Section||Atomic, molecular and optical physics|
|Published online||01 September 2002|
Energy loss of swift H3+-molecule ions in carbon foils
Departament de Física Aplicada,
Universitat d'Alacant, Apartat 99, E-03080 Alacant, Spain
2 Departamento de Física, Universidad de Murcia - Apdo. 4021, E-30080 Murcia, Spain
3 Instituto Balseiro, Centro Atómico Bariloche - RA-8400 Bariloche, Argentina
Accepted: 8 July 1996
The energy loss of -molecule beams interacting with amorphous carbon targets has been calculated, both as a function of the target thickness and the projectile velocity. We have considered the spatial changes, due to Coulomb repulsion, of the initial molecular configuration after the ion enters the target and then used a dielectric formalism to evaluate the stopping power of the correlated protons. The ratio between the stopping power of the molecule and that of its constituents considered individually accounts for the vicinage effects and agrees reasonably well with available experimental data.
PACS: 34.50.Bw – Energy loss and stopping power / 36.40.-c – Atomic and molecular clusters
© EDP Sciences, 1996
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