External x-ray photoelectric effect in negative-electron-affinity cathodes
Shchemelev V. N. , Stuchinskii G. B. , Andrushchenko A. L. , Klimin A. I. , Chevokin V. K. , Prokhorov A. M.
The absolute values of the quantum yields in terms of the current for the external photoelectric effect in the x-ray region 0.05-0.25 nm have been found for the first time for negative-electron-affinity cathodes based on III-V compounds for various glancing angles of the radiation. The average emission depth and the emission probability for electrons are calculated from the experimental data.