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    光阴极及其制造方法
    2.
    发明授权
    光阴极及其制造方法 失效

    公开(公告)号：CN1019247B

    公开(公告)日：1992-11-25

    申请号：CN88101430

    申请日：1988-03-18

    Applicant: 株式会社东芝

    Inventor： 荒枚成光

    IPC: H01J1/34 ,  H01J29/18 ,  H01J9/12

    CPC classification number: H01J29/385 ,  H01J9/12 ,  H01J2201/3425 ,  H01J2201/3426

    Abstract: 本发明提供一种形成于基底(15)上的光阴极(13)，基底(15)包括表面具有大量狭窄空隙或微孔的一个或多个部件，所述光阴极主要由一种半金属。锰或银以及一种或多种碱金属所组成，其特征在于：光阴极(13)形成于已形成在基底上的碱金属氧化物(14)之上，而半金属。锰或银以及一种或多种碱金属的成分比是化学计量或近于化学计量的。本发明的光阴极具有高灵敏度，且能在长时期内稳定地维持此灵敏度。

    光阴极及其制造方法
    4.
    发明公开
    光阴极及其制造方法 失效

    公开(公告)号：CN88101430A

    公开(公告)日：1988-09-28

    申请号：CN88101430

    申请日：1988-03-18

    Applicant: 株式会社东芝

    Inventor： 荒枚成光

    IPC: H01J1/34 ,  H01J29/04 ,  H01J9/12

    CPC classification number: H01J29/385 ,  H01J9/12 ,  H01J2201/3425 ,  H01J2201/3426

    Abstract: 本发明提供一种形成于基底(15)上的光阴极(13)，基底(15)包括表面具有大量狭窄空隙或微孔的一个或多个部件，所述光阴极主要由一种半金属、镁或银以及一种或多种碱金属所组成，其特征在于：光阴极(13)形成于已形成在基底上的碱金属氧化物(14)之上，而半金属、镁或银以及一种或多种碱金属的成分比是化学计量或近于化学计量的。本发明的光阴极具有高灵敏度，且能在长时期内稳定地维持此灵敏度。

    Photoelectron emitting member
    7.
    发明授权
    Photoelectron emitting member 失效
    光电子发射构件

    公开(公告)号：US5060805A

    公开(公告)日：1991-10-29

    申请号：US538771

    申请日：1990-06-15

    Applicant: Toshiaki Fujii ,  Kazuhiko Sakamoto

    Inventor： Toshiaki Fujii ,  Kazuhiko Sakamoto

    IPC: B03C3/38 ,  G01N15/02 ,  G01N15/06 ,  H01J1/34

    CPC classification number: H01J1/34 ,  B03C3/383 ,  G01N15/0266 ,  G01N15/0656 ,  H01J2201/3425

    Abstract: A photoelectron emitting member having a multiplex structure comprises a matrix and a protective film. The matrix being selected from the group consisting of elements, inorganic compounds, alloys, mixtures thereof and composites thereof which emit photoelectrons upon exposure to uv rays and other forms of radiation, the protective film comprising at least one material selected from the group consisting of metals, metallic compounds, plastics, polycyclic aromatic hydrocarbon, derivatives thereof or a mixture thereof which is film-forming and not thicker than 0.2 .mu.m. The member can be used in a consistent way over a prolonged period as well as being capable of effective emission of photoelectrons. Fine particles electrically charged with photoelectrons which are emitted upon applying uv rays and/or other forms of radiation to the photoelectron emitting member, can be used in various applications such as (a) separation and classification of fine particles, as well as modifying their surfaces and controlling an electrically charged amount thereof; (b) the measurement of the concentration and size of fine particles in gases such as air and waste gases by using electrically charged fine particles; and (c) trapping and removal of charged fine particles to produce clean gases.

    Secondary emission enhancer for an x-ray image intensifier
    8.
    发明授权
    Secondary emission enhancer for an x-ray image intensifier 失效
    X射线图像增强器的二次发射增强器

    公开(公告)号：US3710125A

    公开(公告)日：1973-01-09

    申请号：US3710125D

    申请日：1970-04-29

    Applicant: UNIV NORTHWESTERN

    Inventor： JACOBS J ,  KOVAC M

    IPC: G21K4/00 ,  H01J1/34 ,  H01J31/50

    CPC classification number: H01J1/34 ,  G21K4/00 ,  H01J2201/3425

    Abstract: The number of electrons emitted from a metal surface that is being bombarded by x-rays is increased by utilizing a secondary electron emission process within an insulator, potassium chloride (KCl), that is deposited on a metal, gold (Au) layer. The problem of obtaining a maximum electron yield from these layers is one of optimizing the secondary electron emission in the KCl for a given x-ray energy. This optimization is a function of the thickness of the KCl, its density, temperature, and an internal electric field.

    Abstract translation: 通过利用在金属，金（Au）层上沉积的绝缘体KCl（KCl）内的二次电子发射过程来增加由被x射线轰击的金属表面发射的电子的数量。 从这些层获得最大电子产量的问题是对于给定的x射线能量来优化KCl中的二次电子发射的问题之一。 该优化是KCl的厚度，其密度，温度和内部电场的函数。

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