Evaluation of the performance of a soft X-ray charger for the bipolar charging of nanoparticles

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 neu- tralizer. In addition, the results from the evaluation of the soft X-ray charger were...

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Bibliographic Details
Published in:Particuology 2015-02, Vol.18 (1), p.165-169
Main Authors: Yoon, Young Hun, Bong, Choonkeun, Kim, Dae Seong
Format: Article
Language:English
Subjects:
Aerosols
Analog computers
Analyzers
Bipolar charger
Charging
Diffusion
Nanoparticle
Nanoparticles
Neutralizer
Neutralizers
Scanning
Soft X-ray
Soft x-rays
TDMA
充电器
充电性能
双极
尺寸依赖性
纳米颗粒
评价
软X-射线
软X射线
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Summary: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 neu- tralizer. In addition, the results from the evaluation of the soft X-ray charger were compared with results obtained using a neutralizer incorporating an 241 Am 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 the- ory, and that the soft X-ray charger could be used as a neutralizer for a scanning mobility particle sizer system.
ISSN:1674-2001
2210-4291
DOI:10.1016/j.partic.2014.05.005