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    • 14. 发明授权
    • Electron multiplier unit including first and second support members and photomultiplier including the same
    • 包括第一和第二支撑构件的电子倍增器单元和包括该电子倍增器的光电倍增器
    • US07495392B2
    • 2009-02-24
    • US11182080
    • 2005-07-15
    • Kimitsugu NakamuraYousuke OohashiKeiichi OhishiMasuo Ito
    • Kimitsugu NakamuraYousuke OohashiKeiichi OhishiMasuo Ito
    • H01J43/04
    • H01J43/22H01J43/18H01J43/26
    • This invention relates to an electron multiplier unit and others enabling cascade multiplication of electrons through successive emission of secondary electrons in multiple stages in response to incidence of primary electrons. The electron multiplier unit has a first support member provided with an inlet aperture for letting primary electrons in, and a second support member located so as to face the first support member. The first support member is provided with a focusing electrode functioning to alter trajectories of the primary electrons, in order to guide the primary electrons to the inlet aperture. These first and second support members hold an electron multiplication section for the cascade multiplication and an anode. The electron multiplication section comprises at least a first dynode of a box type and a second dynode having a reflection type secondary electron emission surface located so as to face the first dynode and arranged to receive secondary electrons from the first dynode and to emit secondary electrons to a side where the first dynode is located. The anode is located at a position where the secondary electrons emitted from the first dynode do not directly arrive, and the second dynode alters a travel path of secondary electrons so as to be kept in a space between the first and second support members.
    • 本发明涉及电子倍增器单元和其它能够响应于初级电子的入射而以多级连续发射二次电子的电子级联乘法。 电子倍增器单元具有第一支撑构件,该第一支撑构件设置有用于使一次电子入口的入口孔和位于第一支撑构件的第二支撑构件。 第一支撑构件设置有用于改变初级电子的轨迹的聚焦电极,以便将一次电子引导到入口孔。 这些第一和第二支撑构件保持用于级联乘法和阳极的电子倍增部分。 电子倍增部分至少包括箱型的第一倍增极和具有反射型二次电子发射表面的第二倍增电极,所述反射型二次电子发射表面定位成面对第一倍增电极并被布置成从第一倍增电极接收二次电子并且发射二次电子 第一个倍极管所在的一侧。 阳极位于从第一倍增电极发射的二次电子不直接到达的位置,并且第二倍增极改变二次电子的行进路径,以便保持在第一和第二支撑构件之间的空间中。
    • 15. 发明授权
    • Electron multiplier unit including first and second support members and photomultiplier including the same
    • 包括第一和第二支撑构件的电子倍增器单元和包括该电子倍增器的光电倍增器
    • US07492097B2
    • 2009-02-17
    • US11080665
    • 2005-03-16
    • Kimitsugu NakamuraYousuke OohashiKeiichi OhishiMasuo Ito
    • Kimitsugu NakamuraYousuke OohashiKeiichi OhishiMasuo Ito
    • H01J43/04
    • H01J43/22H01J43/18H01J43/26
    • This invention relates to an electron multiplier unit and others enabling cascade multiplication of electrons through successive emission of secondary electrons in multiple stages in response to incidence of primary electrons. The electron multiplier unit has a first support member provided with an inlet aperture for letting primary electrons in, and a second support member located so as to face the first support member. These first and second support members hold an electron multiplication section for the cascade multiplication and an anode. The electron multiplication section is comprised of at least a first dynode of a box type and a second dynode having a reflection type secondary electron emission surface located so as to face the first dynode and arranged to receive secondary electrons from the first dynode and to emit secondary electrons to a side where the first dynode is located. The anode is located at a position where the secondary electrons emitted from the first dynode do not directly arrive, and the second dynode alters a travel path of secondary electrons so as to be kept in a space between the first and second support members.
    • 本发明涉及电子倍增器单元和其它能够响应于初级电子的入射而以多级连续发射二次电子的电子级联乘法。 电子倍增器单元具有第一支撑构件,该第一支撑构件设置有用于使一次电子入口的入口孔和位于第一支撑构件的第二支撑构件。 这些第一和第二支撑构件保持用于级联乘法和阳极的电子倍增部分。 电子倍增部分包括至少第一倍频器的盒型和第二倍增电极,其具有反射型二次电子发射表面,该反射型二次电子发射表面定位成面对第一倍增电极并被布置成从第一倍增电极接收二次电子并且发射次级 电子到第一倍增电极所在的一侧。 阳极位于从第一倍增电极发射的二次电子不直接到达的位置,并且第二倍增极改变二次电子的行进路径,以便保持在第一和第二支撑构件之间的空间中。
    • 16. 发明申请
    • Multi-anode type photomultiplier tube
    • 多阳极型光电倍增管
    • US20070182325A1
    • 2007-08-09
    • US10807292
    • 2004-03-24
    • Suenori KimuraTakayuki OhmuraTeruhiko YamaguchiMasuo Ito
    • Suenori KimuraTakayuki OhmuraTeruhiko YamaguchiMasuo Ito
    • H01J43/18
    • H01J43/18
    • A glass container has a faceplate, a side tube, and a bottom. A photocathode is formed on the inner side of the faceplate. The glass container includes a partitioning wall, a shield electrode, a first dynode, a second dynode, a dynode array, and an anode. The partitioning wall has a cross shape to divide an electron focusing space into four space segments. The shield electrode is provided to shield the second dynode from the photocathode. A Venetian blind type of dynodes is provided as the dynode array. The first dynode, the second dynode, the dynode array, and the anode are maintained at the potential which is higher than that of the photocathode. Electrons emitted from the photocathode in response to incident light thereon efficiently impinge on the dynodes regardless of where the electrons are emitted. The electrons are multiplied and then detected by the anode.
    • 玻璃容器具有面板,侧管和底部。 在面板的内侧形成有光电阴极。 玻璃容器包括分隔壁,屏蔽电极,第一倍增电极,第二倍增电极,倍增极阵列和阳极。 分隔壁具有十字形状,以将电子聚焦空间分成四个空间段。 屏蔽电极被设置为屏蔽第二倍增电极与光电阴极。 提供了威尼斯式的倍增电极作为倍增电极阵列。 第一倍增电极,第二倍增极,倍增极阵列和阳极保持在比光电阴极高的电位。 不管发射电子的位置如何,从光电阴极发出的响应于入射光的电子有效地撞击在倍增极上。 电子被乘以然后由阳极检测。
    • 18. 发明授权
    • Photomultiplier tube tightly arranged with substantially no space between adjacent tubes
    • 光电倍增管在相邻管之间基本上没有空间紧密地排列
    • US06472664B1
    • 2002-10-29
    • US09701540
    • 2000-11-30
    • Hiroyuki KyushimaAkira AtsumiHideki ShimoiTomoyuki OkadaMasuo Ito
    • Hiroyuki KyushimaAkira AtsumiHideki ShimoiTomoyuki OkadaMasuo Ito
    • G01T120
    • H01J43/04G01N23/046G01N23/06G01N2223/419H01J43/28
    • A photomultiplier tube unit including photomultiplier tubes densely assembled and thereby having an improved light sensing efficiency. The outer surfaces (2b) of metal side tubes (2) of photomultiplier tubes (1) are in facial contact with one another, and thereby a high-density arrangement of photomultiplier tubes (1) are achieved. The side tubes (2) can be electrically connected to one another, and therefore the side tubes (2) can be easily made equipotential. As a result, it is unnecessary to electrically connect the stem pin (10) to the side tube (2) of each photomultiplier tube (1), facilitating the assembling of the photomultiplier tube unit. When a required photomultiplier tube (1) in a device (e.g., a gamma camera) having thus-united multiple photomultiplier tubes is replaced with a new one, the troublesome work of replacing photomultiplier tubes one by one is obviated, simplifying the replacement work.
    • 一种光电倍增管单元,其包括密集组装的光电倍增管,从而具有改进的光感测效率。 光电倍增管(1)的金属侧管(2)的外表面(2b)彼此面接触,从而实现光电倍增管(1)的高密度布置。 侧管(2)可以彼此电连接,因此侧管(2)可以容易地形成等电位。 结果,不需要将杆销(10)电连接到每个光电倍增管(1)的侧管(2),便于组装光电倍增管单元。 当将具有如此组合的多个光电倍增管的装置(例如,γ照相机)中的所需光电倍增管(1)替换为新的时,消除了逐个更换光电倍增管的麻烦的工作,从而简化了更换工作。
    • 19. 发明授权
    • Image intensifier
    • 图像增强器
    • US6005239A
    • 1999-12-21
    • US988236
    • 1997-12-10
    • Hideki SuzukiMinoru KondoMasuo ItoYoshitoshi Ishihara
    • Hideki SuzukiMinoru KondoMasuo ItoYoshitoshi Ishihara
    • G02B6/06G02B6/08H01J29/18H01J29/38H01J29/89H01J31/50H01J29/24
    • G02B6/08H01J29/385H01J29/892
    • In an image intensifier comprising an entrance faceplate, made of a material transparent to light, having a photoelectric surface, formed on a surface opposite to a light entrance surface, for photoelectrically converting incident light into an electron; and an optical fiber block, constituted by a plurality of optical fibers bundled together, having a phosphor face at an end face of each optical fiber on the light entrance side, for emitting light in response to the electron incident thereon; the photoelectric surface of the entrance faceplate and the phosphor face of the optical fiber block opposing each other, while a vacuum atmosphere being formed therebetween; the optical fiber block is provided with a pit in which an end face of a core portion of each optical fiber is recessed from an end face of a cladding portion thereof, the bottom of the pit is filled with a phosphor, the surface of this phosphor is provided with a metal back layer, the cladding portion projects from the surface of the phosphor toward the entrance surface by a predetermined height, and the projecting surface of the cladding portion is provided with a metal film.
    • 在包括由与光入射面相反的表面上形成的具有光电表面的由光透明的材料制成的入射面板的图像增强器中,用于将入射光光电转换成电子; 以及由多个光纤束组合构成的光纤块,在光入射侧的每个光纤的端面上具有荧光体面,用于响应于入射到其上的电子发光; 入口面板的光电面和光纤块的荧光体面彼此相对,同时在其间形成真空气氛; 光纤块设置有凹坑,其中每个光纤的芯部的端面从其包层部分的端面凹陷,凹坑的底部填充有荧光体,该荧光体的表面 设置有金属背层,包层部从荧光体的表面向入射面突出规定的高度,并且包层部的突出面设置有金属膜。