SOFT X-RAY PHOTOIONIZATION CHARGER

摘要

A soft X-ray photoionization charger includes a housing having a chamber and an aperture formed on one side surface of the housing and joined to the chamber. The chamber forms a flow path of an aerosol containing particles. A photoionizer is fixed to the aperture of the housing. The photoionizer includes a head for irradiating soft X-rays into the chamber to neutralize the particles. A transparent window is mounted between the chamber and the head. The transparent window is made of a material permitting passage of the soft X-rays. The photoionization charger further includes a soft support ring arranged around the transparent window and tightly fitted to the aperture.