Excitation Functions of Reactions of 7- to 24-MeV ${\mathrm{He}}^3$ Ions with ${\mathrm{Cu}}^{63}$ and ${\mathrm{Cu}}^{65}$

Excitation functions of the (${\mathrm{He}}^3$, $p$), (${\mathrm{He}}^3$, $n$), (${\mathrm{He}}^3$, $2p$), (${\mathrm{He}}^3$, $p2n$), (${\mathrm{He}}^3$, $p3n$), (${\mathrm{He}}^3$, $\alpha$), (${\mathrm{He}}^3$, $\alpha n$), and (${\mathrm{He}}^3$, $2\alpha$) reactions on ${\mathrm{Cu}}^{63}$ and the (${\mathrm{He}}^3$, $n$), (${\mathrm{He}}^3$, $2n$), (${\mathrm{He}}^3$, $p2n$), (${\mathrm{He}}^3$, $3n$), and (${\mathrm{He}}^3$, $\alpha p$) reactions on ${\mathrm{Cu}}^{65}$ have been measured at incident ${\mathrm{He}}^3$ energies from 7 to 24 MeV. It is shown that the ${\mathrm{He}}^3$ excitation functions are comparable to those of the analogous ${\mathrm{He}}^4$ reactions. Computed cross sections based on the compound-nucleus evaporation model are in qualitative agreement with observed values for both ${\mathrm{He}}^3$ and ${\mathrm{He}}^4$ reactions.