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首页> 外文会议>空気清浄とコンタミネーションコントロール研究大会 >Charging of Gasborne Fine Particles by Soft X-ray and Its Application to Particle Measurement
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Charging of Gasborne Fine Particles by Soft X-ray and Its Application to Particle Measurement

机译：通过软X射线充电气体细颗粒及其在粒子测量中的应用

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摘要

A new bipolar charger for aerosol particles was developed by using a soft X-ray emitter. The concentration and mobility distribution of the positive and negative ions generated by the charger were measured. The charging state of aerosol particles attained by the charger was also investigated both experimentally and theoretically. From the comparison of the charging performance of the soft X-ray bipolar charger with that of a conventional ~(241)Am alpha-ray bipolar charger, the new charger was proved to be a useful instrument for neutralizing aerosol particles. In addition, reduction of ion generation by using a dose-adjustable soft X-ray emitter led to a suppression of formation of multiply-charged submicron particles. The performance of size classification using a differential mobility analyzer could be improved based on this charge suppression.
机译：通过使用软X射线发射器开发了一种用于气溶胶颗粒的新的双极充电器。测量由充电器产生的正极和负离子的浓度和迁移率分布。在实验和理论上还研究了充电器所获得的气溶胶颗粒的充电状态。从软X射线双极充电器的充电性能与传统〜（241）的α射线双极充电器的充电性能的比较，证明了新的充电器是用于中和气溶胶颗粒的有用仪器。另外，通过使用剂量可调的软X射线发射器来减少离子产生，导致抑制倍增亚微米颗粒的形成。可以基于该电荷抑制来改进使用差分移动分析仪的尺寸分类的性能。

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