Diagram and Nondiagram Lines in K Spectra of Aluminum and Oxygen from Metallic and Anodized Aluminum

Abstract

Wavelength and intensities are reported for the Al K series using primary excitation. Included in the tabulation are the diagram lines α₁α₂ and β₁, and the nondiagram lines α′, α₃, α₄, α₅, α₆, β′, β″, and β″′. Spectra are shown and line positions and intensities are detailed using both aluminum metal and aluminum oxide as the target materials. Significant differences are seen between metal and oxide spectra, especially in wavelength and shape of the Kβ₁ band, and large changes are noted in the intensity of some satellite lines. The oxygen K band at 23.60 Å from an anodized film is shown. The band is only slightly asymmetrical and no satellites are detected on the band contour. The application of x‐ray spectroscopy to the study of elements in anodic oxide pores is discussed with reference to quantitative changes and coordination determination.