Terms sourced from: 10.1351/pac198557101453

"Nomenclature, symbols, units and their usage in spectrochemical analysis - V: Radiation sources (Recommendations 1985)", Butler, L.R.P.;Laqua, K.;Strasheim, A., Pure and Applied Chemistry 1985, 57(10), 1453

background radiation burning tension coherent source collisional broadening Doppler broadening elastic scattering Holtsmark broadening Lorentz broadening metastable metastable state molecular spectra natural broadening radiation continuum radiative absorption radiative de-excitation self-absorption