-
公开(公告)号：US4587455A
公开(公告)日：1986-05-06
申请号：US736965
申请日：1985-05-21
Applicant: Louis R. Falce , Glenn S. Breeze
Inventor： Louis R. Falce , Glenn S. Breeze
Abstract: An emitter-dispenser housing for a controlled porosity dispenser cathode manufactured of a single material as a unitary piece by a chemical vapor deposition process in which a configured mandrel is coated with a layer of material such as tungsten, for example, so that when the mandrel is removed from the coating of material a hollow housing is formed having a side wall and an end wall which define a reservoir. In addition, intersecting strips of this same material as the coating, which had been placed in the mandrel, extend transversely across the reservoir with the edges thereof atomically bonded to the coating during the chemical vapor deposition to form a unitary piece. Thereafter an array of apertures is formed in the end wall of the housing by laser drilling to create an emitter-dispenser.
Abstract translation: 用于通过化学气相沉积工艺由单一材料制成的单一材料作为整体件的发射器 - 分配器壳体，其中所配置的心轴涂覆有例如钨的材料层，使得当心轴 从材料涂层去除，形成有中空壳体，其具有限定储存器的侧壁和端壁。 此外，已经放置在心轴中的与涂层相同的材料的相交的条带横向延伸穿过储存器，其中在化学气相沉积期间其边缘原子地结合到涂层上以形成整体。 此后，通过激光钻孔在壳体的端壁中形成孔阵列以产生发射器 - 分配器。
-
22.发明授权Method of manufacturing a thermionic cathode and thermionic cathode manufactured by means of said method 失效通过所述方法制造的热离子阴极和热离子阴极的制造方法
公开(公告)号：US4533852A
公开(公告)日：1985-08-06
申请号：US447079
申请日：1982-12-06
Applicant: Berthold Frank , Georg Gartner , Hans Lydtin
Inventor： Berthold Frank , Georg Gartner , Hans Lydtin
Abstract: The cathode (4) the material of which is substantially high-melting metal such as W, Mo, Ta, Nb, Re and/or C, consists of a very fine-grained mechanically stable support layer (5), a series of layers (6) considerably enriched with emissive material, in general from the scandium group especially from the group of rare earth metals, preferably with Th or compounds thereof and a thermally stable preferentially oriented coating layer (7). All the layers are provided via the gaseous phase, for example, CVD methods, on a substrate (1) formed according to the desired cathode geometry. The substrate (1) is removed after termination of the deposition. FIG. 2.
Abstract translation: 其材料基本上是高熔点金属如W，Mo，Ta，Nb，Re和/或C的阴极（4）由非常细粒度的机械稳定的支撑层（5）组成，一系列层 （6）通常来自钪基团，特别是来自稀土金属的组，优选与Th或其化合物和热稳定的优先取向的涂层（7）相比富集发射材料。 通过气相（例如CVD方法）在根据所需阴极几何形状形成的基底（1）上提供所有层。 在沉积终止之后去除衬底（1）。 图。 2。
-
23.发明授权Thermoelectric cathode for a hyperfrequency valve and valves incorporating such cathodes 失效用于超频阀的热电阴极和并入这种阴极的阀
公开(公告)号：US4494035A
公开(公告)日：1985-01-15
申请号：US318316
申请日：1981-11-04
Applicant: Pierre Palluel , Arvind Shroff
Inventor： Pierre Palluel , Arvind Shroff
Abstract: This invention concerns a thermoelectronic cathode for hyperfrequency electron tubes.The cathode comprises a cylindrical molybdenum casing, the lower portion of which contains a heating filament, while the upper portion contains two superimposed porous bodies, the lower one made from impregnated material, and the upper one from non-impregnated material.
Abstract translation: 本发明涉及一种用于超频电子管的热电子阴极。 阴极包括一个圆柱形的钼壳体，其下部包含加热丝，而上部包含两个重叠的多孔体，下部由多个浸渍的材料制成，上部由非浸渍材料制成。
-
公开(公告)号：US4310775A
公开(公告)日：1982-01-12
申请号：US67925
申请日：1979-08-20
Applicant: Hinrich Heynisch
Inventor： Hinrich Heynisch
CPC classification number: H01J1/28
Abstract: In an exemplary embodiment, a metal capillary cathode for electric discharge vessels with an emission substance carrier disk porous on its front face and comprised of metal melting at a high temperature is constructed to prevent lateral emission of electrons (interfering emission). To this end, the disclosure provides that the emission substance carrier disk has a nonporous outer casing surface with a higher electron work function than the outer, active surface of the emission substance carrier disk. Such a dispenser cathode is employed as a metal capillary cathode in traveling wave tubes.
Abstract translation: 在示例性实施例中，构造了用于放电容器的金属毛细管阴极，其前表面多孔的发射物质载体盘和由高温熔化的金属构成，以防止电子的横向发射（干扰发射）。 为此，本公开提供了排放物质载体盘具有比排放物质载体盘的外部活性表面更高的电子功函数的无孔外壳表面。 这种分配器阴极用作行波管中的金属毛细管阴极。
-
25.发明授权Thermionic cathode having an embedded grid, process for its fabrication, and high frequency electron tubes using such a cathode 失效具有嵌入式栅格的热电阴极，其制造方法以及使用这种阴极的高频电子管
公开(公告)号：US4302702A
公开(公告)日：1981-11-24
申请号：US904240
申请日：1978-05-09
Applicant: Jean Montgaillard , Arvind Shroff
Inventor： Jean Montgaillard , Arvind Shroff
Abstract: The invention relates to metal oxide activated porous tungsten cathodes and methods of their manufacture. A cathode 1 of porous tungsten activated by metal oxides is mounted on a housing 2 which has a heating filament 3. On the outer face of the cathode there is a pattern or grid of pure tungsten (preferably formed by a chemical vapor deposition of WCl.sub.6 or WF.sub.6) of crystalline material the outer face of which has an orientation in the (100) or (110) plane and is parallel to the surface of the cathode. The invention will find particular use in the cathode guns of high frequency tubes such as traveling wave tubes and klystrons.
Abstract translation: 本发明涉及金属氧化物活化的多孔钨阴极及其制造方法。 由金属氧化物活化的多孔钨的阴极1安装在具有加热丝3的壳体2上。在阴极的外表面上有纯钨的图案或格栅（优选通过化学气相沉积WCl6或 WF6），其外表面在（100）或（110）平面中具有取向并且平行于阴极的表面。 本发明将特别用于高频管如行波管和速调管的阴极枪。
-
公开(公告)号：US4274030A
公开(公告)日：1981-06-16
申请号：US26649
申请日：1979-04-03
Applicant: Charley Buxbaum
Inventor： Charley Buxbaum
Abstract: A reaction thermionic cathode of the diffusion type on the basis of an activated high-temperature support metal doped with a diffusion-promoting additive for the activator substance, provided with a barrier layer inhibiting the self-diffusion of this additive in an undesired direction.
Abstract translation: 基于掺杂有活化剂物质的扩散促进添加剂的活化的高温载体金属，扩散型的反应热离子阴极设置有抑制该添加剂在不期望的方向上的自扩散的阻挡层。
-
公开(公告)号：US4147954A
公开(公告)日：1979-04-03
申请号：US813529
申请日：1977-07-07
Applicant: Richard A. Tuck
Inventor： Richard A. Tuck
CPC classification number: H01J1/28
Abstract: A thermionic electron emitter comprises a tube of wall thickness less than 0.1 mm, a body of thermionic electron emissive material compressed and sintered in the tube, and a ring, coaxial with the tube, within the body to provide constraint against cracking of the body.
Abstract translation: 热离子电子发射器包括壁厚小于0.1mm的管，在管中压缩和烧结的热离子电子发射材料的主体以及与管同轴的环体，以提供对体的开裂的约束。
-
公开(公告)号：US4101800A
公开(公告)日：1978-07-18
申请号：US813389
申请日：1977-07-06
Applicant: Richard E. Thomas , Titus Pankey, Jr.
Inventor： Richard E. Thomas , Titus Pankey, Jr.
CPC classification number: H01J1/28
Abstract: An emissive member for a controlled-porosity, dispenser-type cathode comping a three-component sandwich consisting of: (1) a supporting disc; (2) a layer of nonsintered alkaline earth material on said disc; and (3) a thin perforated foil on said layer. The foil is made of refractory metal and has a uniform pattern of tiny holes through which the active material of the reservoir migrates to coat the surface of the foil, the foil thus serving as the electron-emitting surface of the cathode.
-
公开(公告)号：US4096406A
公开(公告)日：1978-06-20
申请号：US684689
申请日：1976-05-10
Applicant: George Valentine Miram , Erling Louis Lien
Inventor： George Valentine Miram , Erling Louis Lien
IPC: H01J9/04 , H01J1/28 , H01J1/46 , H01J1/48 , H01J3/02 , H01J9/14 , H01J19/14 , H01J23/02 , H01J23/06 , H01J23/065 , H01J1/52 , H01J17/04 , H01J19/38
CPC classification number: H01J19/14 , H01J23/065
Abstract: For a grid-controlled electron source to operate at extremely high frequencies, as in planar triodes, the control grid must be situated very close to the emissive cathode. Mechanical and thermal distortions have put minimum limits on grid spacings and hence on the maximum operating frequency of grid-controlled tubes. To overcome these limits the grid structure is formed as a network of web members which are part of a laminated sheet having metal layers bonded to opposite surfaces of an insulating layer. One metal layer is affixed to the emissive surface of a metallic matrix cathode and the other metal layer forms the control grid.
Abstract translation: 对于栅格控制的电子源在极高频率下工作，如在平面三极管中，控制栅格必须非常靠近发射阴极。 机械和热变形对电网间距进行了最小限制，从而对电网控制管的最大工作频率进行了限制。 为了克服这些限制，格栅结构形成为网状构件的网络，网状构件的网络是具有粘合到绝缘层的相对表面的金属层的层压片材的一部分。 一个金属层固定在金属基体阴极的发射表面上，另一个金属层形成控制栅。
-
公开(公告)号：US3902090A
公开(公告)日：1975-08-26
申请号：US33446673
申请日：1973-02-21
Applicant: PHILIPS CORP
Inventor： EKKELBOOM TJEPKE HENDRIK , VRIEZE WUBBE
IPC: H01J61/073 , H01J61/98 , H01J1/14 , H01J1/28
CPC classification number: H01J61/98 , H01J61/0732
Abstract: A short-arc gas discharge lamp having a discharge vessel provided with a gas filling in which the discharge takes place, and with two electrodes of a high melting point metal facing each other. The end of at least one of the electrodes facing the discharge is conical and has a recess located on the axis of the cone, which recess accommodates a quantity of thorium metal. The recess extends to such a distance from the closed apex of the cone that during operation of the lamp transport of thorium metal to the apex of the cone is mainly effected by means of diffusion through the electrode material.
