Theoretical and experimental electron collisions broadening parameters for several Sc II spectral lines of industrial and astrophysical interest

Abstract

Electron collision broadening parameters of 9 singly ionized scandium spectral lines (and 1 neutral scandium spectral line) were experimentally measured in laser-induced breakdown experiments using a Q-switched Nd:YAG laser focused on Pb-Sc alloy samples. Furthermore, calculations of these parameters were performed for 56 singly ionized scandium spectral lines in the semi-empirical Griem approach using the Gaunt factors proposed by Van Regemorter and those proposed by Douglas H. Sampson.