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44 条记录 (耗时 0.01 秒)

    Electron gun
    11.
    发明授权
    Electron gun 失效
    电子枪

    公开(公告)号：US3706002A

    公开(公告)日：1972-12-12

    申请号：US3706002D

    申请日：1970-11-16

    申请人： VARIAN ASSOCIATES

    发明人： MIRAM GEORGE V ,  KUEHNE GERHARD B

    IPC分类号： H01J3/02 ,  H01J23/065 ,  H01J25/10

    CPC分类号： H01J3/027 ,  H01J3/026 ,  H01J23/065

    摘要： A HIGH POWER MICROWAVE BEAM TUBE IS DISCLOSED EMPLOYING AN IMPROVED ELECTRON GUN. THE ELECTRON GUN INCLUDES AN OUTWARDLY FLARED HIGH VOLTAGE ELECTRICAL INSULATOR FOR INSULATING THE ANODE RELATIVE TO THE CATHODE. THE OUTWARDLY FLARED INSULATOR INCLUDES AN EXTERNAL SHOULDER PORTION ENCIRCLING THE FLARED MEBER, SUCH SHOULDER BEING DISPOSED INTERMEDIATE THE LENGTH OF THE FLARED MEMBER AND BEING JOINED TO A PORTION OF THE ENVELOPE OF THE GUN TO BE OPERATED AT A POTENTIAL POSITIVE WITH RESPECT TO THE CATHODE POTENTIAL. A FLUID ENCLOSURE ENCLOSES THE WIDE END OF THE FLARED INSULATOR FOR CONTAINING A FLUID COOLANT IN HEAT EXCHANGING RELATION WITH PORTIONSOF THE VACUUM ENVELOPE OF THE GUN FOR COOLING THE GUN IN USE.

    Thermionic cathode for electron beam apparatus
    12.
    发明授权
    Thermionic cathode for electron beam apparatus 失效
    电子束设备的THERMIONIC CATHODE

    公开(公告)号：US3631290A

    公开(公告)日：1971-12-28

    申请号：US3631290D

    申请日：1970-08-17

    申请人： IBM

    发明人： LOEFFLER KARL H

    IPC分类号： H01J1/15 ,  H01J3/02 ,  H01J1/14 ,  H01J19/08

    CPC分类号： H01J1/15 ,  H01J3/026 ,  H01J3/027

    摘要： A thermionic cathode comprising a lanthanum hexaboride (LaB6) emitter and an emission current-intercepting plate made of rhenium containing an aperture disposed adjacent the emitter. The separation between the emitter and plate is set as small as possible without physical contact between them, typically 0.1 mm. The beam emitted through the aperture has high brightness and low energy spread. To prevent corrosion of the emitter it is housed in a cavity which is exposed to the vacuum of the apparatus only through the aperture.

    James d
    13.
    发明授权
    James d 失效

    公开(公告)号：US582378A

    公开(公告)日：1897-05-11

    申请号：US582378D

    CPC分类号： H01J3/026

    Method of Controlling Electron Beam Focusing of Pierce-Type Electron Gun and Control Apparatus Therefor
    15.
    发明申请
    Method of Controlling Electron Beam Focusing of Pierce-Type Electron Gun and Control Apparatus Therefor 有权
    控制电子束聚焦电子枪及其控制装置的方法

    公开(公告)号：US20100026161A1

    公开(公告)日：2010-02-04

    申请号：US12446584

    申请日：2007-10-18

    申请人： Eiichi Iijima ,  Guo Hua Shen ,  Tohru Satake

    发明人： Eiichi Iijima ,  Guo Hua Shen ,  Tohru Satake

    IPC分类号： H01J29/48

    CPC分类号： H01J37/07 ,  H01J3/026 ,  H01J37/06 ,  H01J37/304 ,  H01J2237/004 ,  H01J2237/182

    摘要： [Object] In the control of electron beam focusing of a pierce-type electron gun, any influences from the space charge effect and space charge neutralizing action within the electron gun are eliminated to attain complete control of an electron beam.[Solving Means] Feedback control of the pressure within the electron gun is performed by directly measuring temperature at an internal of the pierce-type electron gun. It is desirable that locations where the direct measurement of the temperature at the internal of the electron gun is performed are an anode (39) and a flow register (43). Further, the direct measurement can be performed at any one of a ring, an aperture and an exhaust pipe provided at an outlet or an inlet of any one of a cathode chamber (31), an intermediate chamber, and a scanning chamber (33). Accordingly, all of stabilization of beam producing area (optimized design of electron gun itself), stabilization of beam transporting portion and stabilization of beam using portion have become appropriate.

    摘要翻译： 目的在穿透型电子枪的电子束聚焦的控制中，消除了电子枪内的空间电荷效应和空间电荷中和作用的任何影响，以完全控制电子束。 [解决方法]电子枪内的压力的反馈控制通过直接测量穿孔式电子枪内部的温度来进行。 期望进行电子枪内部的温度的直接测量的位置是阳极（39）和流动寄存器（43）。 此外，直接测量可以在设置在阴极室（31），中间室和扫描室（33）中的任一个的出口或入口处的环，孔和排气管中的任一个处进行， 。 因此，射束产生区域的所有稳定（电子枪本身的优化设计），光束传送部分的稳定和光束使用部分的稳定已经变得合适。

    Insulation diaphragm for getter flash turntable and method of implementing and using same
    16.
    发明授权
    Insulation diaphragm for getter flash turntable and method of implementing and using same 失效
    吸气剂闪光转盘绝缘隔膜及其实施和使用方法

    公开(公告)号：US06296538B1

    公开(公告)日：2001-10-02

    申请号：US09479241

    申请日：2000-01-07

    申请人： Michael J. Chamberlain ,  David Allen Murtishaw

    发明人： Michael J. Chamberlain ,  David Allen Murtishaw

    IPC分类号： H01J944

    CPC分类号： H01J9/445 ,  H01J3/026

    摘要： An insulating diaphragm can be disposed on the saddle of getter flash turntable or other fixture used to support a cathode ray tube during frit knocking with a high voltage. The diaphragm protects the integrity of the cathode ray tube by preventing arcing of the high voltage through the neck of the cathode ray tube and into the supporting saddle.

    摘要翻译： 绝缘隔膜可以设置在吸气剂闪光转盘的鞍座上，或用于在高压下进行玻璃料敲击时支撑阴极射线管的其它固定器。 隔膜通过防止高电压通过阴极射线管的颈部电弧并进入支撑鞍座来保护阴极射线管的完整性。

    Means and method for suppressing oscillations in electron guns
    17.
    发明授权
    Means and method for suppressing oscillations in electron guns 失效
    用于抑制电子枪振荡的手段和方法

    公开(公告)号：US3963955A

    公开(公告)日：1976-06-15

    申请号：US460860

    申请日：1974-04-15

    申请人： George V. Miram ,  Gordon T. Hunter

    发明人： George V. Miram ,  Gordon T. Hunter

    IPC分类号： H01J3/02 ,  H01J23/065 ,  H01J23/08

    CPC分类号： H01J23/065 ,  H01J3/026

    摘要： A method and apparatus for preventing oscillations in high-current electron guns. Spurious oscillations frequently occur as a result of interaction of the electron stream with the fields of resonant modes of the gun structure. The resonant impedances of the modes are lowered by damping with lossy dielectric or resistive materials which are suited to the high temperature and vacuum environment of electron guns. The lossy materials are located in places shielded from high electric fields applied to the gun. Lossy dielectric materials which are D.C. insulators may be used as insulating supports for gun electrodes.

    Gridded convergent flow electron gun
    18.
    发明授权
    Gridded convergent flow electron gun 失效
    网格转换流量电子枪

    公开(公告)号：US3843902A

    公开(公告)日：1974-10-22

    申请号：US43967474

    申请日：1974-02-04

    申请人： VARIAN ASSOCIATES

    发明人： MIRAM G ,  KUEHNE G

    IPC分类号： H01J3/02 ,  H01J23/065 ,  H01J1/48 ,  H01J1/94 ,  H01J19/48

    CPC分类号： H01J3/029 ,  H01J3/026 ,  H01J23/065

    摘要： A gridded convergent flow electron gun employs a dimpled oxide coated thermionic cathode emitter facing a centrally apertured accelerating anode. A multiapertured control grid is interposed in the space between the dimpled oxide coated cathode and the anode for pulsing the electron beam. A multiapertured shadow grid is disposed overlaying the emitting surface of the cathode emitter with the apertures of the shadow grid being in alignment and in registration with the respective dimpled areas of the emitter and the corresponding apertures in the control grid for projecting a multiplicity of non-intercepting convergent flow beamlets through the individual holes in the control grid. The shadow grid is placed in nominal contact with the cathode emitter and is made of a material having essentially the same coefficient of thermal expansion as the cathode. In a preferred embodiment, the cathode includes a nickel base member and the shadow grid is made of nickel.

    摘要翻译： 网格收敛流电子枪采用面向中心多孔加速阳极的凹凸氧化物涂层热电子阴极发射体。 多孔化控制栅格插入在凹凸氧化物涂覆的阴极和阳极之间的空间中，用于脉冲电子束。 多个投影的阴影栅格被布置为覆盖阴极发射器的发射表面，其中阴影栅格的孔对准并与发射器的相应的凹坑区域对准，并且控制栅格中的相应孔径突出， 拦截收敛流束通过控制网格中的各个孔。 阴影栅格被放置为与阴极发射体标称接触，并且由具有与阴极基本相同的热膨胀系数的材料制成。 在优选实施例中，阴极包括镍基构件，阴影栅格由镍制成。