Cobmecтhaя диффuзия фop;oh;ob и khcy;acтиц b пoлuБecкoheчhom пpocтpahcтbe—I pacпpeдeлehиe boзБuждehhьч aтomob b пoлuБecкoheчhom пpocтpahcтbe

The excited atom distribution produced by the simultaneous action process, namely, excitation transfer by radiation in a spectral line and spce movement of excited atoms, is considered. A kinetic equation describing these process is analysed. For steady-state conditions, an adympototic analytical solutio id obtained. This solution describes the concentration distribution of excited atoms for a plane geometry in a region which is a distance exceeding the effective free path away from the surface limiting the volume.The influence on the general solution of either the excitation transfer process id found as a function of the parameters involved.