Abstract

Preliminary values of the total scattering cross section of electrons on 3P3/2 sodium atoms have been measured at 1.0, 2.0, and 3.0 eV by an atomic double-recoil method. The atoms are excited by a single-mode tunable dye laser. The atomic recoil due to resonant photon interactions is used to spatially separate the excited atoms and to determine the fraction of excited atoms. Standard recoil techniques are used to determine the total cross sections. The results are compared with close-coupling calculations.

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