Broadening and Shift of the 3p54p-3p54dArgon Spectral Lines in Pure Argon, Argon-Neon and Argon-Helium Mixtures

Low pressure broadening and shift of four spectral lines of argon, 591.2, 687.1, 693.7 and 737.2 nm have been investigated. The values of the pressure broadening and shift coefficients for argon-argon, argon-neon and argon-helium interactions in the glow discharge are determined. For all lines in the pure argon a red shift and in the argon-helium mixture a blue shift has been found. In the argon-neon mixture the shifts of these lines are small and have different signs.