NUCFRG2 - A SEMIEMPIRICAL NUCLEAR FRAGMENTATION MODEL

The semiempirical abrasion/ablation model has been successful in gener ating a large nuclear data base for use in the study of high charge an d energy (HZE) ion beams, radiation physics and galactic cosmic ray sh ielding. The cross sections generated agree with the measured HZE frag mentation data to the degree that different experimental groups agree among themselves. Several improvements in the model have been made inc luding a Coulomb trajectory correction, an improved treatment of nucle ar attenuation factors, an improved second order correction to the spe ctator fragment excitation spectrum, a pre-equilibrium emission proces s, and competitive equilibrium emission of additional hydrogen and hel ium isotope fragments.