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Cross sections for the two-body channels populated in the 32 S+ 24 Mg reaction at E c . m . =60.8 MeV have been measured by use of a coincidence technique which allows correction for secondary lightparticle evaporation. The data show reaction yields with full equilibration of energy and massasymmetry coordinates. These results suggest an asymmetric fission mechanism and are contrary to what is expected from the previously proposed "orbiting" mechanism in light systems.

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Reactions with a heavy projectile incident on a light target can be used for the efficient in-flight production of secondary radioactive beams. An overview of this technique is given using data on 17 F beams produced via the p(17 O, 17 F)n and d(16 O, 17 F)n reactions. With primary 16,17 O beam currents of 100 pnA, intensities of up to 2ϫ10 6 17 F/s on target were achieved. Using this beam, the p(17 F,␣) 14 O reaction was measured.

Mass and velocity distributions have been measured for the evaporation residue and fusion-fission products from the ' 0+ Ca reaction at 214 MeV. Comparisons of Monte Carlo statistical evaporation simulations to the observed angle and mass dependences of the evaporation-residue velocity distributions were used to set limits on the maximum complete-fusion cross section and to extract information about the magnitude and character of incomplete-fusion processes. The extracted value of the complete fusion evaporation-residue cross section is discussed in the framework of previous results and existing models.