Abstract
The electronic and optical properties of passive films are changed by radiation in different ways. Nuclear and electronic interaction must be discussed for heavy particles but only electronic interaction for β- and γ-radiation. Nuclear interaction means defect production and amorphization of the solid which can be detected by measurements of capacity, electron transfer reactions, photocurrents, UPS and XPS and reflection spectra. Various electrode reactions are enhanced which changes the passive behavior. The electronic effect of radiation can be simulated by a focussed laser beam. Electron hole pairs are generated and separated in the electric field. Hole accumulation near the surface causes radiation induced oxide growth.
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