In heavy ion fusion the compression of the DT-pellet requires adequate acce
lerators and storage rings for the driving projectile ions. The design of s
uch storage rings crucially depends on the expected particle losses due to
charge-changing collisions between the stored ions. Although the kinetic en
ergy of driver ions in a heavy ion fusion scenario is in the order of sever
al GeV, the relative kinetic energy of intrabeam ion-ion collisions is only
in the keV region and therefore attainable in an ion-ion crossed-beams exp
eriment. In this paper we report on the investigation of charge exchange in
collisions between quadruply charged xenon and bismuth ions. With the know
ledge of these cross-sections we were able to estimate the particle losses
from a 100 Tm synchrotron which is one of the possible options for a future
GSI upgrade. The relevance of such a synchrotron for plasma physics and HI
F is given by the possible intensity of 10(13) ions and approximately 40 kJ
bunch energy. (C) 2001 Elsevier Science B.V. All rights reserved.