Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9460468 | Journal of Aerosol Science | 2005 | 6 Pages |
Abstract
The transmission efficiency of a venturi mixing and dilution system was investigated with laboratory generated aerosol by comparison of two condensation particle counters (CPCs). The transmission efficiency exceeded 95% for particle sizes between 3 and 20Â nm. The use of the diluter system is demonstrated through comparison with total concentrations derived from a nano-scanning mobility particle sizer (nSMPS) applied to measuring a rapidly changing atmospheric nucleation mode. The study indicates that the diluted-CPC sampler can resolve rapidly changing, and more intense peaks in excess of 106cm-3, which are otherwise missing or under-sampled by the nSMPS.
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Authors
Young Jun Yoon, Sinead Cheevers, S. Gerard Jennings, Colin D. O'Dowd,