Photoionization cross sections have been calculated by means of the Scaled-ThomasFermi method for the alkali metals and the alkaline earths. Using these results the absorption coefficients for bound-free transitions have been obtained for thermal plasmas of 6000 to 20,000 K and wavelengths from 500 to 10,000•. In addition the oscillator strengths are given for the principal series of the alkali metals.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.