Model calculations of a two-step reaction scheme for the production of neutron-rich secondary beams

Abstract

A two-step reaction scheme for the production of extremely neutron-rich radioactive beams, fission followed by cold fragmentation, is considered. The cross sections of the second step, the cold fragmentation of neutron-rich fission fragments, are estimated with different computer codes. Discrepancies between an empirical systematics and nuclear-reaction codes are found.Comment: 31 pages, 13 figures, background information on http://www-wnt.gsi.de/kschmidt