Intermediate mass fragment emission from 8 to 40 MeV/u

Experimental data for fragmentation in the reactions /sup 93/Nb = /sup 9/Be, /sup 12/C, and /sup 27/Al are presented. Data were obtained from the LBL BEVALAC (25 to 40 MeV/u), GSI Unilac (11 to 18 MeV/u) and LBL SuperHILAC. These measurements imply, that over a large range of bombarding energies, intermediate mass fragments are produced by the bineary decay of a compound nucleus-like system. At low bombarding energies, these systems are associated with a complete fusion reaction, whereas for the larger energies the initial system is formed in an incomplete fusion reaction. The data shows a smooth evolution from the lower energies, where the statistical emission of intermediate mass fragments is well established, to the higher, intermediate energy regime. 4 refs., 2 figs