WING FORMULAS FOR PLASMA-BROADENED SPECTRAL-LINES OF HYDROGENIC IONS

Spectrum lines of hydrogenic ions in plasmas are broadened by both ion and electron perturbers. In the present paper the ion contributions a re calculated using conventional quasi static theory, and the electron contributions using a quantum-mechanical one-perturber theory. In man y previous papers it has been assumed that quasi-static theory can be used to calculate the electron contributions in the line wings. The va lidity of that assumption is discussed Comparison with the results of the quantum-mechanical calculations shows that the quasi-static theory gives electron wing profiles in error by factors ranging from about 0 .5 to 2.0.