ABSTRACT
Installing a COLTRIMS spectrometer into a storage ring would sizeably reduce the scattering zone to a fraction of ~1 mm between the intersecting beams of the multiple charged ions and helium target atoms. This could be achieved by cooling both the target and the projectile beams. Among the experimental methods designed for studying the previously discussed processes, COLTRIMS seems to be optimal as has already been demonstrated in a number of kinematically complete measurements with unsurpassed precision. The idea behind this powerful technique was borne out from the insurmountable difficulties of conventional methods such as the TS in measuring cross sections and/or branching ratios at very large values of Einc. Clearly, due to their heavy mass, the multiply charged ions as projectiles deviate only slightly from their incident direction. The connection between the cross sections that are differential in scattering parameters of a projectile and a recoiled ion is less straightforward if charge exchange is simultaneously accompanied by ionization.
