K X-ray emission spectra of Mg and Al

Relative energies and relative intensities of the K alpha satellites and the K beta bands of Mg and Al metals and anodized Al have been measured. Spectra were obtained with a PAX spectrometer which provided high resolution and accurate intensity data (PAX identical to photoelectron spectrometry for the analysis of X-rays). Relative energies agree well with data from the literature. Relative intensities of line groups that correlate with initial KL, KL 2 and KL 3 defects are compared with theoretical predictions based on the shake-off theory. Theory underestimates the satellite group intensities by 15% for KL defects and 30-40% for KL 2 defects. The intensity ratio K beta /K alpha 1,2 is found to be 1.7% for Mg and 2.4% for Al.