Fragmentation studies of 158 A GeV Pb ions using CR39 nuclear track detectors

Six stacks of CR39 [(C12H18O7)n, a Registered Trade Mark of PPG Industries, Inc.] nuclear track detectors with different targets were exposed to a lead ion beam of 158 A GeV at the CERN-SPS, at normal incidence, in order to study the fragmentation properties of ultra-relativistic lead nuclei. Measurements of the total, break-up and pick-up charge-changing cross sections of 158 A GeV Pb ions have been made for the first time.