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    • 6. 发明申请
    • ELECTRONIC TIME-OF-FLIGHT MASS SELECTOR
    • 电子飞行时间质量选择器
    • US20090050800A1
    • 2009-02-26
    • US11571860
    • 2005-06-22
    • Andrei BurninJoseph J. Belbruno
    • Andrei BurninJoseph J. Belbruno
    • H01J49/40
    • H01J49/061H01J49/40
    • A method of selecting ions includes generating a group of ions, accelerating the group of ions through a flight region towards an electronic mass selector grid, and selectively varying a voltage applied to the electronic mass selector grid, such that only a selected subset of the group of ions passes through the grid. An apparatus for selecting ions includes an ion generator, an ion accelerator for accelerating ions into a flight region, and an electronic mass selector grid responsive to an applied voltage to pass a subset of the ions from the flight region. An apparatus for detecting a threat molecule includes an ion generator for generating ions from a mixed gas stream, an ion accelerator for accelerating the ions into a flight region, and an electronic mass selector grid. The grid passes only a subset of the ions, such as ions and/or ionized fragments of the threat molecule.
    • 选择离子的方法包括产生一组离子,通过飞行区域朝向电子质量选择器网格加速离子组,并且选择性地改变施加到电子质量选择器网格的电压,使得仅仅选择组的选定子集 的离子通过网格。 用于选择离子的装置包括离子发生器,用于将离子加速到飞行区域中的离子加速器,以及响应于所施加的电压的电子质量选择器格栅,以使来自飞行区域的离子的子集通过。 用于检测威胁分子的装置包括用于从混合气流产生离子的离子发生器,用于将离子加速到飞行区域中的离子加速器和电子质量选择器格栅。 网格仅通过离子的一部分,例如威胁分子的离子和/或离子化碎片。