Structure of Spectral Lines from Plasmas

Abstract

Plasma line broadening is discussed with attention restricted to emission. The statistical theory and the impact theory are applied and discussed as to limits of each and circumstances under which each is best applied. Adiabatioity, perturber interactions, and treatment for radiating ions are expressed in mathematical formulas. The wing theorem and quantum theory are applied to achieve numerical estimates for the Balmer lines, including those with high quantum numbers. Broadening by electrons only is discussed relative to adiabatic theory and Lyman lines. Basic formulas for simultaneous broadening by ions and electrons in adiabatic approximation are presented. Plasma properties are discussed in relation to experimental determinations. (C. J. G.)