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        Measurement of the charge of airborne 3-10 um spherical dielectric particles charged in an AC unipolar charger

        Author
        Dalley, J.E.J.
        Greenaway, R.
        Ulanowski, Z.
        Hesse, E.
        Kaye, Paul H.
        Attention
        2299/4558
        Abstract
        The charges of airborne 3, 5 and 10 um spherical dielectric test particles passing through a novel AC unipolar charger have been measured individually. The measurements show the effectiveness of the charger and provide statistics on the particle charges measured. The 3 um particles were charged to significantly higher values than expected. These log-normally distributed particle charges were found to have an average significantly above the saturation level for dielectric particles. This is most probably because of increased surface conductivity due to sodium and chlorine surface impurities from dried surfactant used for the storage of such particles.
        Publication date
        2005
        Published in
        Journal of Aerosol Science
        Published version
        https://doi.org/10.1016/j.jaerosci.2005.02.008
        Other links
        http://hdl.handle.net/2299/4558
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