Continuous slowing-down approximation range
= Continuous slowing-down approximation range
{title2=$R_{\mathrm{CSDA}}(K_0)=\int_0^{K_0}dK/S(K)$}
An approximation to mean travelled path length, obtained by integrating reciprocal total <electron stopping power> and neglecting energy-loss fluctuations. It differs from mean forward penetration depth when <Electrons> change direction.