利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.019 秒)

    Mass spectrometer and ion detector used therein
    2.
    发明授权
    Mass spectrometer and ion detector used therein 失效
    其中使用的质谱仪和离子检测器

    公开(公告)号：US06707034B1

    公开(公告)日：2004-03-16

    申请号：US10230349

    申请日：2002-08-29

    申请人： Haruhisa Yamaguchi ,  Makoto Nakamura ,  Takehisa Okamoto ,  Hiroshi Suzuki ,  Takayuki Ohmura

    发明人： Haruhisa Yamaguchi ,  Makoto Nakamura ,  Takehisa Okamoto ,  Hiroshi Suzuki ,  Takayuki Ohmura

    IPC分类号： H01J4926

    CPC分类号： H01J49/025

    摘要： An ion detector includes an ion input face, a Faraday cup, an ion-to-electron converter dynode, two ion deflection electrodes, an electron multiplier portion, and an anode. The ion input face is formed with an ion input opening. The Faraday cup has an ion collection surface that confronts the ion input opening. The ion-to-electron converter dynode is disposed to one side with respect to the Faraday cup and the ion input opening and has a conversion surface that converts impinging ions into electrons. The two ion deflection electrodes generate an electron lens that attracts and focuses ions from the ion input opening toward the conversion surface of the ion-to-electron converter dynode. The electron multiplier portion receives and multiplies the electrons from the ion-to-electron converter dynode, and includes a plurality of dynodes that multiply electrons one after the other. The plurality of dynodes are juxtaposed in an arc-shape around the Faraday cup. The anode receives electrons from the electron multiplier portion and outputs a signal that corresponds to the amount of input ions.

    摘要翻译： 离子检测器包括离子输入面，法拉第杯，离子到电子转换器倍增极，两个离子偏转电极，电子倍增器部分和阳极。 离子输入面由离子输入口形成。 法拉第杯具有面对离子输入口的离子收集表面。 离子 - 电子转换器倍增电极相对于法拉第杯和离子输入开口设置在一侧，并且具有将入射离子转化为电子的转换表面。 两个离子偏转电极产生电子透镜，其吸引并聚焦离子从离子输入开口朝向离子到电子转换器倍增极的转换表面。 电子倍增器部分接收和乘以离子到电子转换器倍增电极的电子，并且包括一个接一个地乘以电子的多个倍增电极。 多个倍增电极以法拉第杯周围的弧形并列。 阳极从电子倍增器部分接收电子，并输出与输入离子量对应的信号。

    Electron multiplying device having multiple dynode stages encased by a housing
    3.
    发明授权
    Electron multiplying device having multiple dynode stages encased by a housing 失效
    具有由壳体封装的多个倍增电极级的电子倍增装置

    公开(公告)号：US5446275A

    公开(公告)日：1995-08-29

    申请号：US63418

    申请日：1993-05-19

    申请人： Shiro Sakai ,  Takehisa Okamoto ,  Makoto Nakamura ,  Haruhisa Yamaguchi ,  Tetsuya Morita

    发明人： Shiro Sakai ,  Takehisa Okamoto ,  Makoto Nakamura ,  Haruhisa Yamaguchi ,  Tetsuya Morita

    IPC分类号： H01J43/04 ,  H01J43/28 ,  H01J40/14

    CPC分类号： H01J43/04 ,  H01J43/28

    摘要： The electron multiplying device according to this invention comprises an electron multiplying unit including dynodes arranged in a plurality of stages. The electron multiplying unit has an incidence opening for an energy beam to be multiplied to enter through, and has the proximal end secured to a base. There is provided a casing for housing the electron multiplying unit. The forward edge of the casing is secured to the base, and a space defined by the base and the casing houses the electron multiplying unit. The casing has an entrance window formed at a position opposed to the incidence opening. Energy beams enter the electron multiplying unit through the entrance window, but the electron multiplying unit itself is housed in the casing to be protected from surrounding air flow and unnecessary energy beams not to be measured.

    摘要翻译： 根据本发明的电子倍增装置包括电子倍增单元，其包括以多级布置的倍增电极。 电子倍增单元具有用于能量束的入射开口，该能量束被乘以通过，并且其近端固定到基部。 设置有用于容纳电子倍增单元的壳体。 壳体的前缘固定到基座，由基座和壳体限定的空间容纳电子倍增单元。 壳体具有形成在与入射开口相对的位置处的入口窗口。 能量束通过入口窗进入电子倍增单元，但是电子倍增单元本身被容纳在壳体中以防止周围的空气流动和不被测量的不必要的能量束。

    Electron multiplier
    5.
    发明授权
    Electron multiplier 失效
    电子倍增器

    公开(公告)号：US5578891A

    公开(公告)日：1996-11-26

    申请号：US457174

    申请日：1995-06-01

    申请人： Shiro Sakai ,  Takehisa Okamoto ,  Makoto Nakamura

    发明人： Shiro Sakai ,  Takehisa Okamoto ,  Makoto Nakamura

    IPC分类号： H01J43/20 ,  H01J43/06 ,  H01J43/18

    CPC分类号： H01J43/06

    摘要： An electron multiplier according to this invention comprises dynodes DY1 .about.DY16 arranged in multi-stages along a direction of incidence of an energy beam for, upon incidence of the energy beam, gradually multiplying secondary electrons to emit the same, a collection electrode A for receiving electrons emitted from that of the dynodes on a last stage, and resistors R1 .about.R16 inserted between the respective dynodes and their adjacent ones, the dynodes, the collecting electrode, and the resistors being mounted between two support plates 10a, 10b disposed in parallel with each other, the resistors being arranged in two rows which sandwich the dynodes.

    摘要翻译： 根据本发明的电子倍增器包括沿着能量束的入射方向多级布置的倍增电极DY1差分DY16，用于在能量束入射时，逐渐地将二次电子发射相同，用于接收的收集电极A 电子发射自最后一级的倍增电极的电子，以及插入相应的倍增电极及其相邻电极之间的电阻器R1差分R16，倍增电极，集电极和电阻器被安装在两个平行于 彼此之间，电阻器被排列成两行，夹着倍增极。