A new bactericidal UV light sources - Excilamps

Edward A. Sosnin, Larisa V. Lavrent'eva, Mikhail V. Erofeev, Yana V. Masterova, Eugenia N. Kuznetzova, Victor F. Tarasenko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Citations (Scopus)


A reliable bactericidal effect on Escherichia coli cells irradiation by excilamps has been established. Both on primary and secondary irradiation there exists the reciprocally proportional dependence between irradiation doze (or exposure time) and survived cells number. The microorganisms survived after primary irradiation are shown to have not changed sensitivity to excilamps irradiation. The best results have been obtained during XeBr-excilamp irradiation. Owing to their technical parameters, the excilamps are promising systems for UV-sterilization. Comparison of capacitive discharge excilamp characteristics with other conventional UV light sources is presented. A comparative study on UV doze effect of a barrier discharge KrCl-excilamp (λ = 222 nm) on Staphylococcus aureus and Escherichia coli inactivation was carried out. KrCl-excilamp emission power is 65 W, and emitting area is 0.1 m2. It has been demonstrated that Staphylococcus aureus cell sensitivity to UV radiation at this wavelength is higher than that of Escherichia coli.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsV.F. Tarasenko, G.V. Mayer, G.G. Petrash
Number of pages6
Publication statusPublished - 2004
EventAtomic and Molecular Pulsed Lasers V - Tomsk, Russian Federation
Duration: 15 Sep 200319 Sep 2003


OtherAtomic and Molecular Pulsed Lasers V
CountryRussian Federation


  • Escherichia coli
  • Excimer lamp (excilamp)
  • Germicidal lamps
  • UV-inactivation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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