Line radiation in non local thermodynamic equilibrium

This paper deals with the problem of line radiation in conditions of non thermodynamic equilibrium and applies the results obtained to the study of the imprisonment of resonance radiation. It was found that the excited level, and by consequence the resonance radiation, decays in two ways in competition each other: one is a diffusive decay, due to the fact that the gas is generally very thick for frequencies near the center of the absorption line, and the other is an exponential decay due to the far "wings" of the absorption coefficient, where the gas is optically thin. © 1966 Tamburini Editore s.p.a. Milano.

Duke Scholars

Author Massimo Germano Civil and Environmental Engineering