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Megawatt, pulsed ultraviolet photon sources for microbial inactivation

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4 Author(s)
Hancock, P. ; Dept. of Electr. Eng., Univ. of Missouri, Columbia, MO, USA ; Curry, R.D. ; McDonald, K.F. ; Altgilbers, L.

The University of Missouri-Columbia (UMC) has developed pulsed ultraviolet (UV) photon sources commensurate with enhanced ultraviolet inactivation of hazardous microbials on surfaces or in a water matrix. Pulsed xenon flashlamps have been optimized to produce a high ultraviolet photon yield in the 180-320 nm range that is lethal to microbials and has a high cross-sectional interaction with photosensitizer chemicals to synergistically enhance microbial inactivation. Electrical models have been derived to predict the time-dependent plasma discharge impedance profiles of the flashlamp UV source.

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Plasma Science, IEEE Transactions on  (Volume:32 ,  Issue: 5 )