VUV intensity measurement of a 172 nm Xe excimer lamp by means of oxygen actinometry

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Abstract

The light power of a xenon excimer VUV source was determined by means of oxygen actinometry. It was found that the method is not applicable for direct measurement of the light power mainly because of the side-reactions of ozone with oxygen atoms. Model calculations led to a simple equation between the quantum yield and the concentrations of ozone and oxygen. The correlation between the overall quantum yield and the ozone and oxygen concentration at room temperature is Φ = 2-1.10[O3]/[O2]1.94, and at atmospheric oxygen pressure Φ = 2-520 [O3].

Original languageEnglish
Pages (from-to)421-432
Number of pages12
JournalOzone: Science and Engineering
Volume20
Issue number5
DOIs
Publication statusPublished - 1998

Keywords

  • Hydroxyl Radical
  • Organic Pollutants
  • Oxygen Actinometry
  • Ozone
  • Ozone Formation
  • Ozone Generation
  • Ozone from Oxygen
  • Photochemical Reactions
  • Photolysis
  • Photolytic Metal Deposition
  • VUV
  • Vacuum-Ultraviolet Radiation
  • Xenon Excimers

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry

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