Continuous-slowing-down range
= Continuous-slowing-down range
{title2=$R_{\rm CSDA}=\int_0^{T_0}\frac{dT}{S(T)}$}
The path-length estimate $R=\int_0^{T_0}dT/S(T)$ obtained by replacing random losses by their mean. It is not exactly the projected penetration depth when <Multiple Coulomb scattering> bends tracks.