title: Drastic enhancement of energy-loss straggling of relativistic heavy ions due to charge-state fluctuations
abstract: Stopping power and energy-loss straggling of 197Au, 208Pb, and 209Bi projectiles have been measured in different solids (4</=Z2</=82) in the energy range (100-1000) MeV/u. The experimental results clearly demonstrate the influence of the different charge states of the ions. Because of charge-state fluctuations the energy-loss straggling 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.
authors.affiliation: Gesellschaft fur Schwerionenforschung, 64291 Darmstadt, Germany and II. Physikalisches Institut, Universitat Giessen, 35392 Giessen, Germany.
authors.initials: H
authors.lastname: Weick
authors.initials: H
authors.lastname: Geissel
authors.initials: C
authors.lastname: Scheidenberger
authors.initials: F
authors.lastname: Attallah
authors.initials: D
authors.lastname: Cortina
authors.initials: M
authors.lastname: Hausmann
authors.initials: G
authors.lastname: Munzenberg
authors.initials: T
authors.lastname: Radon
authors.initials: H
authors.lastname: Schatz
authors.initials: K
authors.lastname: Schmidt
authors.initials: J
authors.lastname: Stadlmann
authors.initials: K
authors.lastname: Summerer
authors.initials: M
authors.lastname: Winkler