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The mean free path is usually determined via the scattering cross section σ; one starts with a differential equation for the intensity
[tex]dI(x)= -n\,\sigma\,I(x)\,dx[/tex]
Are there generalizations for this derivation for energy-dependent cross sections σ(E)?
[tex]dI(x)= -n\,\sigma\,I(x)\,dx[/tex]
Are there generalizations for this derivation for energy-dependent cross sections σ(E)?