Weick H, Geissel H, Scheidenberger C, Attallah F, Cortina D, Hausmann M, Munzenberg G, Radon T, Schatz H, Schmidt K, Stadlmann J, Summerer K, Winkler M. Drastic enhancement of energy-loss straggling of relativistic heavy ions due to charge-state fluctuations.
PHYSICAL REVIEW LETTERS 2000;
85:2725-2728. [PMID:
10991218 DOI:
10.1103/physrevlett.85.2725]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2000] [Revised: 06/09/2000] [Indexed: 05/23/2023]
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.
Collapse