DOUBLE-FACED ION SOURCE
    1.
    发明申请
    DOUBLE-FACED ION SOURCE 有权
    双重离子源

    公开(公告)号:US20090283694A1

    公开(公告)日:2009-11-19

    申请号:US12437044

    申请日:2009-05-07

    IPC分类号: H01J27/00 H01J49/00 G21G4/00

    CPC分类号: H01J49/14 H01J27/20

    摘要: Disclosed is an ion source comprising a plate-shaped source body which has radioactivity on its both sides and allows positive and negative ions to penetrate through the source body. The present invention gives beneficial effects. First, the ion source structure can improve the ionization efficiency of sample molecules, and the generated sample ions have a centralized distribution within a flat space on both sides of the source body. Such distribution of ion cloud facilitates to improve the IMS sensitivity. Meanwhile, the source body of the present invention has a transmittance in itself. Thus, positive and negative ions generated on both sides of the source body can penetrate through the source body and be separated to the both sides of the source body. In this way, it is possible to improve the utilization efficiency of ions.

    摘要翻译: 公开了一种离子源,其包括在其两侧具有放射性并允许正离子和负离子穿过源体的板状源体。 本发明具有有益效果。 首先,离子源结构可以提高样品分子的电离效率,并且所产生的样品离子在源体的两侧的平坦空间内具有集中分布。 这种离子云的分布有助于提高IMS灵敏度。 同时,本发明的源体本身具有透光性。 因此,源体两侧产生的正离子和负离子可以穿透源体并分离到源体的两侧。 以这种方式,可以提高离子的利用效率。