Escape Factor and Transition Probabilities of Plasma Mg II 280nm Line

Abstract

To study the spectrum of magnesium plasma, the escape factors and transition probabilities of two resonance absorption lines that making up the MgⅡ280nm line are discussed theoretically, for both Gaussian profile and Lorentzian profile. The oscillator strength, the number density of the absorbing atoms in the ground state, and the optical depth in the line center are discussed also. The results we calculated are in good agreement with the exerimental results, and some useful conclusions are drawn. This calculation will be significant in the research of plasma spectrum of magnesium plasma.