Transmission of Slow Electrons through Thin Films

Abstract

The transmission of electrons with energies of 600-6000 ev through films of aluminium and of aluminium oxide of 180-1100 A thickness has been investigated. The transmittance was measured for angles of acceptance between 18 and 36° and the results were compared with Bothe's formula. The range of the electrons as a function of their initial energy was found by extrapolation. Energy distributions for electrons transmitted through the films have been measured and values for the transmitted energies as a function of the primary energy and of the film thickness were compared with the available theoretical results.