X-ray emission in atomic transitions to M shells of Hf, Ta, W, Pt and Au

Abstract

The x-ray emission in atomic decays to M-shell of Hf, Ta, W, Pt and Au induced by electrons was studied. To this purpose, M x-ray spectra were acquired with a wavelength dispersive spectrometer, and processed by a parameter refinement method previously developed. A large set of atomic parameters corresponding to diagram transitions, such as characteristic energies, relative transition probabilities, and natural linewidths was determined. In addition, energy shifts and relative intensities of satellite emissions associated with M5N6,7 and M4N6 diagram lines, were assessed. The results obtained are compared with data from the literature, when available.

Experimental x-ray-production cross sections for the M3, M4 , and M5 subshells of Pt and Au by electron impact

“…The characteristic energies E q and the relative transition probabilities p q were determined in a previous work [35], although in the cases of resolved peaks with good statistics it was possible to refine the p q parameters here. Regarding detection efficiency, peak asymmetry, and influence of the carbon coating, the corresponding parameters were obtained as mentioned in Sec.…”