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Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 32,
  • Issue 2,
  • pp. 157-160
  • (1978)

Spectral Evaluation of Windowless Argon Discharge Vacuum Ultraviolet Lamps for Matrix Isolation Spectroscopy

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Abstract

Windowless argon discharge tubes used as resonance lamps in matrix isolation experiments produced strong argon resonance radiation at 1048 and 1067 Å, and at low pressures, the Ar<sup>+</sup> resonance doublet at 920 and 932 Å made a major contribution to the vacuum ultraviolet spectrum. At discharge pressures below 60 μ, the relative intensities of the 1048, 1067 Å argon resonance doublet are reversed in favor of the 1067 Å line, although the Ar<sup>+</sup> resonance lines are substantially increased relative to the neutral atom emissions.

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