2 1 Ja n 20 08 Fragmentation cross sections of Fe 26 + , Si 14 + and C 6 + ions of 0 . 3 ÷ 10 A GeV on polyethylene , CR 39 and aluminum targets
نویسندگان
چکیده
We present new measurements of the total and partial fragmentation cross sections in the energy range 0.3 ÷ 10 A GeV of Fe, Si and C beams on polyethylene, CR39 and aluminum targets. The exposures were made at BNL, USA and HIMAC, Japan. The CR39 nuclear track detectors were used to identify the incident and survived beams 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.
منابع مشابه
2 5 Ja n 20 02 Fragmentation cross sections of 158 A GeV Pb ions in various targets measured with CR 39 nuclear track detectors
We report the measurement of the fragmentation cross sections in high-energy nucleus-nucleus collisions using the 158 A GeV Pb82+ beam from the CERN-SPS. The fragments have charges changed from that of the incident projectile nucleus by ∆Z = ZPb − Zfrag, with 8 ≤ ∆Z < 75. The targets range from polyethylene to lead. Charge identification is made with CR39 nuclear track detectors, measured with ...
متن کاملs . in s - de t ] 1 3 N ov 2 00 6 Fragmentation studies of high energy ions using CR 39 nuclear track detectors
We report on the measurements of the total charge changing fragmentation cross sections in high-energy nucleus-nucleus collisions using Fe, Si and Pb incident ions. Several stacks of CR39 nuclear track detectors with different target combinations were exposed at normal incidence to high energy accelerator beams to integrated densities of about 2000 ions/cm. The nuclear track detector foils were...
متن کامل. in s - de t ] 2 8 N ov 2 00 6 Fragmentation studies of high energy ions using CR 39 nuclear track detectors
We report on the measurements of the total charge changing fragmentation cross sections in high-energy nucleus-nucleus collisions using Fe, Si and Pb incident ions. Several stacks of CR39 nuclear track detectors with different target combinations were exposed at normal incidence to high energy accelerator beams to integrated densities of about 2000 ions/cm. The nuclear track detector foils were...
متن کاملN ov 2 00 6 Fragmentation studies of high energy ions using CR 39 nuclear track detectors
We report on the measurements of the total charge changing fragmentation cross sections in high-energy nucleus-nucleus collisions using Fe, Si and Pb incident ions. Several stacks of CR39 nuclear track detectors with different target combinations were exposed at normal incidence to high energy accelerator beams to integrated densities of about 2000 ions/cm. The nuclear track detector foils were...
متن کاملFragmentation Cross Sections and Search ----for Nuclear Fragments with Fractional Charge in Relativistic Heavy Ion Collisions
We present measurements of fragmentation cross sections of relativistic nuclei and upper limits for the production probability of nuclear fragments with fractional charge using CR39 nuclear track detectors and an automated scanning system. The measurements of the total and partial charge changing fragmentation cross sections concern 16 GeV/nucleon oxygen ions, 14.5 GeV/nucleon silicon ions and ...
متن کامل