REPRODUCTION OF PROJECTILE AND TARGET MASSES FROM THE BINARY DATA IN THE HEAVY-ION INTERACTION OF 17.0-MEV N XE-132 WITH U-238/

We have collected track data of the observed binary events in the heav y ion interaction of Xe-132 + U-238 at 17.0 MeV/N beam energy after et ching the detectors for various times from 20 to 80 min. It has been o bserved that data reveal proper information regarding the associated e nergies after the 80 min of etching. The elastic events were selected from the binary data on the basis of Rutherford scattering which was t hen used to look for the coefficients of Gottschalk's range-mass-energ y relationship. These coefficients, when used along with the track len gths and angles of the elastic events, reproduced the masses and energ y of the reaction partner.