Abstract

Stark broadened profiles of the hydrogen Lyman-lines Ly-α to Ly-ϵ have been measured in a wall-stabilized argon arc, providing a plasma of an electron density of 7·2 X 10 16 cm -3 and a temperature of 12,200 K. In the cases of Ly-α and Ly-β, detailed investigations of the profiles are performed including absolute measurements, measurements of line shifts and asymmetries and comparisons with modern theories. Moreover, a comprehensive discussion of experimental errors is given and some important features of the radiation source are outlined.

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