Ka satellite transitions in elements with 12<=Z<=30 produced by electron incience

LIMANDRI S.; BONETTO R.; CARRERAS A.; TRINCAVELLI J.

PHYSICAL REVIEW A - ATOMIC, MOLECULAR AND OPTICAL PHYSICS

AMER PHYSICAL SOC

Año: 2010 vol. 82 p. 1 - 9

1050-2947

The emission of x-ray satellite lines in the Ka region of Mg, Si, Sc, Ti, Cr, Fe, Ni, and Zn induced by electron incidence was studied by means of wavelength dispersive spectroscopy. The satellite lines studied were: Ka´, Ka3, Ka4, Ka5, Ka6 and two transitions denoted here as Ka22 and Ka12. Energy shifts respect to the main Ka1 diagram line and transition probabilities relative to the whole Ka group were determined for a number of lines through a careful spectral processing. The dependence of these parameters, as well as of the Ka:Kb intensity ratio, on the atomic number was compared with previous experimental and theoretical determinations when available. A discussion about the different mechanisms responsible for vacancy creation involved in the production of double ionization satellites was performed in the light of the results obtained. Finally, the behavior of the satellite intensities as a function of the incidence energy was discussed for silicon.