Intermediate-Energy Nuclear Data for Radioactive Ion Beams and Accelerator-Driven Systems

Formation cross sections of isotopes produced in inverse kinematics from the spallation/fragmentation and fission of ¹⁹⁷Au (at 800 A·MeV), ²⁰⁸Pb (at 1 A·GeV) and ²³⁸U (at 1 A·GeV) are presented. These data are extremely important for the design of accelerator-driven systems and new radioactive-ion-beam facilities. The data have been measured at GSI with the FRagment Separator, which allows precise measurements of the cross sections of the fragments and of their velocities. The knowledge of the velocity enables to deduce the reaction mechanisms and leads to a better understanding of the physics of intermediate-energy nuclear reactions. Thanks to this, nuclear models capable to predict the isotopic formation cross sections have been implemented and benchmarked with the measured data. Results are presented.