Kinematical Analysis of 2-, 3- and 4- Body Channels in the Reaction (12.5 MeV/u) sup (84)Kr+ sup (nat)U Observed with Mica Track Detectors

摘要

The exclusive measurements of reactions induced by 1050 MeV Kr ions incident on natural uranium have been made with the help of mica track detectors used in 2 pi-configuration. The cross-sections for ternary and quarternary events have been determined by directly counting the numbers of events of relevant multiplicities. The angular distribution in the case of elastic events has been fitted by generalized Fresnel model. A complete kinematical picture of the reaction process has been deduced by converting the three dimensional track parameters (lengths and angles) into parameters of reaction products (masses and energies) in an event by event basis. An empirical velocity-range relation has been used for this purpose, which has been obtained by an internal calibration procedure.