EXPERIMENTAL STARK-BROADENING CONSTANTS FOR AR-I, AR-II AND KR I RESONANCE LINES IN THE VACUUM-ULTRAVIOLET REGION

Absolute spectral radiances of the resonance lines of Ar I, Ar II and Kr I have been measured end-on in a cascaded are plasma. The lines are compared with numerical results obtained by means of a radiative tran sfer model which is tailored to the experiment. The product of Stark w idth and transition probability is derived from a comparison of calcul ated and measured line profiles. The Stark broadening constants for th ese lines are found from the product using published transition probab ilities. Comparisons are made with literature data. Copyright (C) 1966 Elsevier Science Ltd