Drastic enhancement of energy-loss straggling of relativistic heavy ions due to charge-state fluctuations

Citation
H. Weick et al., Drastic enhancement of energy-loss straggling of relativistic heavy ions due to charge-state fluctuations, PHYS REV L, 85(13), 2000, pp. 2725-2728
Citations number
29
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
85
Issue
13
Year of publication
2000
Pages
2725 - 2728
Database
ISI
SICI code
0031-9007(20000925)85:13<2725:DEOESO>2.0.ZU;2-Q
Abstract
Stopping power and energy-loss straggling of Au-197, Pb-208, and Bi-209 pro jectiles have been measured in different solids (4 less than or equal to Z( 2) less than or equal to 82) in the energy range (100-1000) MeV/u. The expe rimental results clearly demonstrate the influence of the different charge states of the ions. Because of charge-state fluctuations the energy-loss st raggling is up to 7 times larger than the pure collisional straggling. The selected energy domain in combination with the heavy projectiles allows for the first time an unambiguous interpretation of the long-standing problem of charge-changing collisions in energy-loss straggling.