Fragmentation cross-sections of Fe26+, Si14+ and C6+ ions of 0.3 divided by 10 A GeV on polyethylene, CR-39 and aluminum targets

摘要

New measurements of the total and partial fragmentation cross-sections in the energy range 0.3 divided by 10 A GeV of Fe26+, Si14+ and C6+ beams on polyethylene, CR-39 and aluminum targets are presented. The exposures were made at Brookhaven National Laboratory (BNL), USA, and Heavy Ion Medical Accelerator in Chiba (HIMAC), Japan. The CR-39 nuclear track detectors were used to identify the incident and survived beam ions and their fragments. The total fragmentation cross-sections for all targets are almost energy independent while they depend on the target mass. The measured partial fragmentation cross-sections are also discussed.