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公开(公告)号：US4150315A
公开(公告)日：1979-04-17
申请号：US903605
申请日：1978-05-08
Applicant: Kei-Hsiung Yang
Inventor： Kei-Hsiung Yang
IPC: G01T1/29 , G03G15/054 , H01J29/38 , H01J39/06 , H01J39/02
CPC classification number: G01T1/2935 , G03G15/0545 , H01J29/385
Abstract: Apparatus for X-ray radiography includes a conductive cathode, receiving X-radiation differentially attenuated by passage through an object to be studied, and a conductive anode spaced from the cathode and bearing a sheet of insulative material upon which a charge image of the object is to be formed; and a structured photocathode extending from the cathode towards the anode. The photocathode, formed of cesium iodide and the like, is of relative great thickness and surface area to have large X-ray quantum absorption and photoelectron emission, whereby a lower exposure dosage of X-radiation is required for a radiographic exposure. A plurality of different photocathode structures are disclosed.
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公开(公告)号：US3461332A
公开(公告)日：1969-08-12
申请号：US3461332D
申请日：1965-11-26
Applicant: SHELDON EDWARD E
Inventor： SHELDON EDWARD E
CPC classification number: H01J43/24 , H01J29/023 , H01J31/507
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公开(公告)号：US3445664A
公开(公告)日：1969-05-20
申请号：US3445664D
申请日：1967-06-05
Applicant: BAUSCH & LOMB
Inventor： MARTENS ALEXANDER E
CPC classification number: H01J43/30
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4.发明授权Image intensifier with fiber optic faceplates sealed with indium-bismuth alloy 失效带有光纤双面合金密封的光纤光栅的图像增强器
公开(公告)号：US4039877A
公开(公告)日：1977-08-02
申请号：US699405
申请日：1976-06-24
Applicant: Jack D. Wimmer
Inventor： Jack D. Wimmer
CPC classification number: H01J31/505 , H01J5/28 , H01J9/263
Abstract: Methods and apparatus are provided for efficiently processing vacuum tubes containing microchannel plate electron multipliers. The vacuum tube body containing the microchannel plate is thermally treated under vacuum prior to sealing the tube faceplates by means of reversible melted metal seals.
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公开(公告)号：US3959680A
公开(公告)日：1976-05-25
申请号：US544016
申请日：1975-01-24
Applicant: John J. Morales
Inventor： John J. Morales
Abstract: A single photomultiplier tube having four sensing areas each of which produces its own independent electrical signal that is related to the quantity of sensed matter that impinges on its area.
Abstract translation: 具有四个感测区域的单个光电倍增管，每个感测区域产生与其在其区域上撞击的感测物质的量相关的其独立的电信号。
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Patent Agency Ranking
公开(公告)号：US3873867A
公开(公告)日：1975-03-25
申请号：US43665474
申请日：1974-01-25
Applicant: RCA CORP
Inventor： GIRVIN HAROLD HAYES
CPC classification number: H01J43/04
Abstract: A mounting means is provided for substantially electrically isolating an electrode assembly of a photomultiplier from the inner surface wall of a glass envelope. The electrode assembly also includes an electrode focussing means for substantially preventing divergent electrons from impinging on electrode support spacers. The combination substantially eliminates the operational electrical instability known as hysteresis.
Abstract translation: 提供了一种安装装置，用于将光电倍增器的电极组件与玻璃封套的内表面壁基本上电隔离。 电极组件还包括用于基本上防止发散电子撞击在电极支撑间隔物上的电极聚焦装置。 该组合基本上消除了称为滞后的操作电气不稳定性。
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公开(公告)号：US3584228A
公开(公告)日：1971-06-08
申请号：US3584228D
申请日：1969-03-27
Applicant: GEN ELECTRIC
Inventor： KENYON LEWIS W , KILPATRICK ROBERT F
CPC classification number: H05B37/0218 , F21S8/088 , F21V23/0464 , Y02B20/46
Abstract: Adjustable reflective shield member is attached to photoelectric control unit mounted in luminaire for directing to the light sensor therein ambient light from desired direction and of desired intensity.
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公开(公告)号：US3501638A
公开(公告)日：1970-03-17
申请号：US3501638D
申请日：1967-10-25
Applicant: UNIV ILLINOIS
Inventor： COMPTON WALTER DALE , BLEHA WILLIAM PAUL JR
IPC: H01L27/00 , H01L31/153 , G01T1/16 , H01J39/02
CPC classification number: H01L31/153 , H01L27/00
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9.发明授权
公开(公告)号：US4038576A
公开(公告)日：1977-07-26
申请号：US652547
申请日：1976-01-26
Applicant: Jean Philippe Hallais , Michel Jean-Claude Monnier , Jean-Claude Richard
CPC classification number: H01J29/38 , H01J29/863 , H01J9/12
Abstract: A window for an electron tube formed by a semiconductor device having a support of monocrystalline oxide, by a connection layer formed by a barium- or calcium-boroaluminate, by at least one passivating layer, and by an active layer having a constant composition and formed by a semiconductor material of the p-conductivity type.
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公开(公告)号：US3885178A
公开(公告)日：1975-05-20
申请号：US48770474
申请日：1974-07-11
Applicant: VARIAN ASSOCIATES
Inventor： GOEHNER RONALD H
CPC classification number: H01J43/04
Abstract: A photomultiplier tube (PMT) converts a received light signal to an output electrical signal of substantially greater intensity by employing a photocathode to convert incident light to free electrons, a plural dynode accelerating structure for effectively multiplying said free electrons, and an impact ionization diode (IID) for further multiplying and collecting said free electrons to provide a corresponding electrical output signal. The PMT can be an electrostatic device, in which the photocathode and the dynodes are mounted in opposed staggered positions, or a static crossed field device, in which the photocathode and the dynodes all are mounted opposite an accelerating rail and a magnetic field is provided to urge the electrons laterally along the tube. The IID''s junction is reverse biased and the entire diode is maintained at a substantially higher potential than the last dynode. The PMT can be gain controlled or turned off without affecting dynode potentials by controlling the IID''s potential. Due to the gain provided by the IID, dynode current can be reduced greatly, thereby to increase substantially the tube''s life without affecting its overall gain.
Abstract translation: 光电倍增管（PMT）通过使用光电阴极将入射光转换成自由电子，将接收到的光信号转换成具有显着更大强度的输出电信号，用于有效地乘以所述自由电子的多倍增电极加速结构和冲击电离二极管 IID），用于进一步乘法和收集所述自由电子以提供对应的电输出信号。 PMT可以是其中光电阴极和倍增极安装在相对交错位置的静电装置，或静电交叉场设备，其中光电阴极和倍增电极都与加速轨相对安装，并且提供磁场 沿着管子侧向推动电子。 IID的结点是反向偏置的，并且整个二极管保持在比最后的倍增电极显着更高的电位。 通过控制IID的电位，PMT可以被增益控制或关断，而不影响倍增电压。 由于IID提供的增益，可以大大减小倍增极电流，从而大大提高管的寿命，而不影响其整体增益。
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