Der zeitliche Intensitätsverlauf im nachleuchtenden Plasma reinen Stickstoffs

Abstract

The afterglow of nitrogen especially prepared to produce an auroral afterglow was investigated after excitation with r. f. discharge. The intensity of the first-positive system, the second-positive system, and the first-negative system showed after a remarkable drop an increase to a maximum. The height and the timal occurrence of the maximum have been investigated quantitatively as function of pressure and excitation conditions. The maximum could only be observed with pressures >1,8 Torr. There is strong evidence that the afterglow emissions of the three band systems during the maximum is governed by a special excitation mechanism common to all band systems.