NeonKEmission Spectrum

Abstract

The neon $K$ emission spectrum, excited by direct electron bombardment of the neon gas, has been obtained with photon counting on a single-crystal potassium-acid-phthalate (KAP) planar spectrometer. The measured relative integrated intensity of the ${\alpha }^{\prime }{\alpha }_3{\alpha }_4$ and ${\alpha }_5{\alpha }_6$ satellite groups was found to be larger than theoretical prediction, but in accord with the trend of previous comparisons for $K$ satellites of neonlike ions in solids. A comparison of the present results for electron excitation and the preliminary results by O. Keski-Rahkonen and T. Åberg for photon excitation indicates that the relative integrated intensity of the neon $K$ satellites is independent of excitation mode at the excess excitation energies employed. A weak increase of intensity on the low-energy side of $K{\alpha }_{1,2}$ in the (803-809)-eV region was recorded and can be attributed to a radiative Auger transition.