Int. J. Mass. Spectrom. 430, 14-21 (2018)
Action spectroscopy of highly excited molecular ions in molecular beams
K.Hansena,b
a Department of Physics, Tianjin University, Tianjin 300072, China
b Department of Physics, Gothenburg University, 41296 Gothenburg, Sweden
Abstract
The use of action spectroscopy for quantitative comparisons of different parts of a recorded spectrum requires that the efficiency of the emission process after photon absorption is quantitatively known. The quantum yields of measured photo-dissociation processes after photo-absorption are derived here for molecular beams with broad energy distributions. The effect of radiative cooling on the yield is included. The quantum yield for both low energy photons and radiative species shows large variations with photon energy.