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    • 2. 发明专利
    • CAMERA TUBE
    • JPS6065432A
    • 1985-04-15
    • JP17293483
    • 1983-09-21
    • HITACHI LTD
    • KUSANO CHIYUUSHIROUISHIOKA YOSHIOSHIMOMOTO TAIJIIMAMURA YOSHINORIOGAWA HIROBUMI
    • H01J29/45H01J31/28H01J31/30
    • PURPOSE:To remove a false signal based on second distribution of secondary electrons without deterioration of resolution and photogene by forming equilibrium electrodes of a two-layer structure in the form of stripes or a lattice on the beam scanning surface of a target. CONSTITUTION:First and second electrodes 4 and 5 are arranged in the form of stripes or a lattice, etc. And out of these two-layer electrodes, the first electrode 4 is formed on a photoconductive body layer 3 through an insulating layer 13. Further, the second electrode 5 is formed on the first electrode 4 through an insulating layer 14 in the insulated condition. And respective potentials between the first electrodes and between second electrodes are respectively equal. When such target is scanned by high-speed electronic beam, released secondary electrons are accelerated in an electric field which is formed by a power source 12 between the electrode 5 and a collector electrode 8 and they are collected by the collector electrode 8. Therefore, they are not distributed again on the target surface, generation of false signal can be removed, and good image signal can be obtained.
    • 6. 发明申请
    • HYBRID MULTIPLIER TUBE WITH ION DEFLECTION
    • 混合多重管与离子偏移
    • WO1996017372A1
    • 1996-06-06
    • PCT/US1995015206
    • 1995-11-22
    • INTEVAC, INC.
    • INTEVAC, INC.LARUE, Ross, A.
    • H01J31/30
    • G01N23/2273G01T1/28H01J43/24H01J43/28
    • A hybrid photomultiplier tube includes a photocathode (130), focusing rings (134, 136), a photodiode (132), and a collection anode (120) disposed in a detector body (110). A vacuum envelope (116) encloses a vacuum region between the photocathode (130) and the detector (110). Conductors (152, 154) disposed on or adjacent to a sidewall of the vacuum envelope (116) reduce the effect of electrical charges on the sidewall of the vacuum envelope (116) on the trajectories of electrons. An ion deflector electrode (167) is disposed adjacent to the photodiode (132) and extends photocathode operational life and improves noise factor.
    • 混合光电倍增管包括设置在检测器主体(110)中的光电阴极(130),聚焦环(134,136),光电二极管(132)和收集阳极(120)。 真空外壳(116)包围光电阴极(130)和检测器(110)之间的真空区域。 设置在真空外壳(116)的侧壁上或与真空外壳(116)的侧壁相邻的导体(152,154)减小电子轨迹上的电荷对真空外壳(116)侧壁的影响。 离子偏转器电极(167)邻近光电二极管(132)设置并延长了光电阴极的使用寿命并改善了噪声系数。