Recent studies of valence band emission spectra

The paper will discuss recent experimental studies of intensity distribution in the K emission bands of the light metals Li and Be and also in the M_2,3 emission spectra of the 3d metals. Consideration will be given to problems dealing with excitation, detection and reduction of data. Factors which might modify and distort the band shape will also be discussed. In this category fall the effect of self-absorption in the target, the contribution from the underlying continuum, the overlap of individual bands, intensity anomalies arising from Auger processes, the width of inner levels and the presence of high and low energy tails. The influence of such instrumental features as the spectral response of the monochromator, modifications produced by the grating, and the effect of contaminants will also be assessed. Where possible, the observed features of the bands will be discussed in the light of recent calculations dealing with band widths and density of states.