Development of Fragmentation Cross Sections of ²⁸Si at Intermediate and High Energies

In this paper, the development of the total and partial charge changing cross sections of ²⁸Si ions beam in different targets using the CR-39 detectors are reviewed. The newest experimental results of the total and partial charge changing cross sections of ²⁸Si in carbon target at 723 AMeV are presented. The dependence of the target mass and the cross sections of ²⁸Si including the total and the partial charge changing cross sections are discussed. It is found that the total charge changing cross sections of ²⁸Si are independent of the energy when the energy of the ions beam is greater than 200 AMeV. The partial charge changing cross sections show an obviously odd-even effect, and increase with the increasing of the mass number of the target.