Projectile fragmentation of 40Ca, 48Ca, 58Ni, and 64Ni at 140 MeV/nucleon

We have measured fragment cross-sections of projectile fragmentation reactions using primary beams of Ca-40, Ca-48, Ni-58, and Ni-64 at 140 MeV/nucleon on Be-9 and Ta-181 targets. The cross-sections were obtained by integrating the momentum distributions of isotopes with Z >= 5 measured in the A1900 fragment separator. We compare the extracted cross-sections to the predictions of the empirical parametrization of fragmentation cross-sections (EPAX).