Electron transmission through a macroscopic platinum capillary

We present simulations for electron transmission through a platinum macrocapillary (diameter d = 3.3 mm, length l = 48 mm) using classical transport theory. Both elastic and inelastic scattering events of primary electrons colliding with the inner wall of the capillary are taken into account. We also model the generation and transport of secondary electrons inside the material. We find excellent agreement of our simulated electron-energy spectra with recent experimental data for 200 eV primary electrons.