| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 671890 | Particuology | 2015 | 5 Pages |
•The particle charge distribution by a soft X-ray charger agreed with the theory.•In the charger, the nanoparticle generation and losses were not problematic.•The soft X-ray charger could be used as a neutralizer for an SMPS system.
The use of soft X-rays in a neutralizer represents an alternative technique that could replace conventional radioactive sources. In this study, we evaluated the charging characteristics of a soft X-ray aerosol neutralizer. In addition, the results from the evaluation of the soft X-ray charger were compared with results obtained using a neutralizer incorporating an 241Am radioactive source. The tandem differential mobility analyzer technique was used previously to determine the size-dependent positive, negative, and neutral charge fractions of a soft X-ray neutralizer. This technique was used to show that the neutral fractions obtained using the soft X-ray charger agreed well with the predictions of bipolar diffusion charging theory, and that the soft X-ray charger could be used as a neutralizer for a scanning mobility particle sizer system.
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