CASCADE-EXCITON MODEL ANALYSIS OF PROTON-INDUCED REACTIONS FROM 10 MEV TO 5 GEV

We have used an extended version of the Cascade-Exciton Model (CEM) to analyze more than 600 excitation functions for proton induced reactio ns on 19 targets ranging from C-12 to Au-197, for incident energies ra nging from 10 MeV to 5 GeV. We have compared the calculations to avail able data. to calculations using approximately two dozen other models, and to predictions of several phenomenological systematics. We presen t here our conclusions concerning the relative roles of different reac tion mechanisms in the production of specific final nuclides. We comme nt on the strengths and weaknesses of the CEM and suggest possible fur ther improvements to the CEM and to other models. (C) 1998 Elsevier Sc ience B.V. All rights reserved.