Bestimmung von Normtemperaturen f�r nichtthermische Plasmen

Abstract

The normal temperatures are calculated for an optical thin plasma which is not in local thermodynamic equilibrium. The following cases are investigated: 1. The normal temperatures for spectral lines of neutral atoms, 2. The normal temperatures for ion-lines. Further there was distinguished between lines of which the upper energy levels were higher or lower than the "thermal limit". Formulae for the normal temperatures could be derived for all important cases. The method determining electron-temperatures by finding the normal-temperatures can now be used also for plasmas which are not in LTE.