Target-ADependence of Light-Ion Emission from Reactions Induced by 100-MeV/uO16

The target-$A$ dependence of cross sections for emission of energetic $Z=1\mathrm{}$, 2 particles from 100-MeV/u ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ on Al, Ni, Sn, and Au targets is found to vary from an $A^{\frac{1}{3}}$ dependence at small angles to $\approx A^{\frac{2}{3}}$ at $\theta >45\mathrm{}°$, suggesting a smooth transition from peripheral to central collisions. The $A$ dependence of ${}_{}{}^2{}_{}{}^{}\mathrm{H}$ and ${}_{}{}^3{}_{}{}^{}\mathrm{H}$ yields indicate that target neutrons contribute to the formation of these particles. Velocity and temperature parameters of a heated, moving source are given for projectile energies from 7.5 to 147 MeV/u.