Energy-loss straggling of (200–1000) MeV/u uranium ions

The charge-exchange contribution can dominate the energy-loss straggling of partially stripped heavy ions depending on the charge-changing cross sections and the partial stopping powers. We have studied the energy-loss straggling of few-electron uranium ions in different solids in the energy range o...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2002-06, Vol.193 (1), p.1-7
Main Authors: Weick, H., Sørensen, A.H., Geissel, H., Scheidenberger, C., Attallah, F., Chichkine, V., Elisseev, S., Hausmann, M., Irnich, H., Litvinov, Y., Lommel, B., Maier, M., Matoš, M., Münzenberg, G., Nankov, N., Nickel, F., Schwab, W., Stöhlker, Th, Sümmerer, K., Voss, B.
Format: Article
Language:English
Subjects:
Charge states
Energy-loss straggling
Stopping power
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Summary:The charge-exchange contribution can dominate the energy-loss straggling of partially stripped heavy ions depending on the charge-changing cross sections and the partial stopping powers. We have studied the energy-loss straggling of few-electron uranium ions in different solids in the energy range of (200–1000) MeV/u. Our experimental data are compared with a new model taking into account realistic screening for relativistic scattering of target electrons at close impacts to derive partial stopping powers. Screening of the projectile nucleus by inner-shell electrons reduces the charge-exchange straggling compared to that pertaining to a point-like charge distribution.
ISSN:0168-583X
1872-9584
DOI:10.1016/S0168-583X(02)00718-8