Multiple Scattering of Low-Energy Electrons in Aluminum

Elastic multiple scattering for low-energy electrons transmitted through aluminum foils has been studied. The probability distribution for the single nuclear scattering was evaluated using the Born approximation and electron densities calculated using the Hartree-Fock approach with the Wigner-Seitz boundary condition. An estimate of the average increase in pathlength over the penetration depth has been obtained. Considering this increase, energy-loss stragglings for electrons transmitted through aluminum foils were re-calculated and compared with experimental data.