Note: Following binary elastic scattering, the kinetic energy of the primary or probe ions, $E_{\mathrm{s}}$, is given by $E_{\mathrm{s}}=E_0[M_0/(M_0+M_1){]}^2\{\cos \theta +[(M_0/M_1{)}^2-{\sin }^2\theta {]}^{½}{\}}^2$ where $E_0$ is the kinetic energy of the incident probe ion prior to scattering; $M_0$ is the mass of the probe ion; $M_1$ is the mass of the target atom; $\theta$ is the angle between the initial and final velocity vectors for the probe ion, as determined from a common origin in the laboratory coordinate system, expressed as a value between $0{}^{\circ }$ and $180{}^{\circ }$.