THEORETICAL EXPRESSIONS FOR SECONDARY-ELECTRON EMISSION FROM METAL-OXIDE FILMS AS A FUNCTION OF MEASURABLE VARIABLES

In this paper a detailed analysis of the theoretical relations of the secondary emission yield (delta) is carried out and modified relations are computed. The aim of this study is to achieve theoretical relations which will contain parameters which can be measured experimentally. As an example, it is shown that the experimental cross-over primary energies E(c)I and E(c)II at which delta = 1 and the primary energy E(Pm) at which delta is at a maximum delta(m) can be employed to compute physical parameters such as the ratio alpha(p)/alpha(s) of absorption constants and the primary electron penetration depth x(d).