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公开(公告)号：US08664853B1
公开(公告)日：2014-03-04
申请号：US13587200
申请日：2012-08-16
Applicant: Eric J. Montgomery , R. Lawrence Ives , Louis R. Falce
Inventor： Eric J. Montgomery , R. Lawrence Ives , Louis R. Falce
IPC: H01J40/06
CPC classification number: H01J40/06
Abstract: A photoelectric cathode has a work function lowering material such as cesium placed into an enclosure which couples a thermal energy from a heater to the work function lowering material. The enclosure directs the work function lowering material in vapor form through a low diffusion layer, through a free space layer, and through a uniform porosity layer, one side of which also forms a photoelectric cathode surface. The low diffusion layer may be formed from sintered powdered metal, such as tungsten, and the uniform porosity layer may be formed from wires which are sintered together to form pores between the wires which are continuous from the a back surface to a front surface which is also the photoelectric surface.
Abstract translation: 光电阴极具有放置在将加热器的热能耦合到功函数降低材料的外壳中的诸如铯的功函数降低材料。 外壳通过低扩散层通过自由空间层和通过均匀的孔隙层引导蒸气形式的功函数降低材料，其一侧也形成光电阴极表面。 低扩散层可以由诸如钨的烧结的金属粉末形成，并且均匀的孔隙层可以由在一起烧结的线材形成，以在从后表面到前表面连续的导线之间形成孔， 也是光电表面。
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公开(公告)号：US4310603A
公开(公告)日：1982-01-12
申请号：US75349
申请日：1979-09-13
Applicant: Louis R. Falce
Inventor： Louis R. Falce
CPC classification number: H01J1/28 , H01J9/04 , Y10T428/12361
Abstract: A dispenser cathode is fabricated by covering a reservoir of electron emitting material with a perforated metal foil having an appropriate pattern of pore-sized apertures thereon for providing uniform electron emission from the cathode surface. The electron emitting material is in the form of a pellet of barium oxide impregnated with a wax or resinous material to minimize chemical reduction of the barium oxide in air. The impregnated barium oxide pellet is sandwiched between the apertured foil and a support structure to which the foil is welded. During tube bake-out or subsequently during cathode activation, the wax or resinous material evaporates and barium oxide migrates through the apertures to cover the surface of the foil in a uniform manner. The desired pattern of apertures in the foil is achieved by photolithography, or by forming the foil (e.g., by chemical vapor deposition, sputter deposition, evaporation, or sintering) on a substrate containing an array of protruding posts. With the photolithographic technique, the desired pattern of apertures is chemically etched directly on the foil; and with the technique in which the foil is formed on a substrate having an array of posts, the substrate with its protruding posts is removed by chemical etching after the foil has been formed. With either technique for forming the apertures, a shadow grid can also be formed as an integral part of the cathode surface by depositing a layer of reactive material such as zirconium or graphite on a selected portion of the cathode surface. This layer of reactive material prevents the formation of an emitting layer of barium oxide on a selected pattern on the cathode surface.
Abstract translation: 分配器阴极通过用具有孔尺寸孔的合适图案的穿孔金属箔覆盖电子发射材料的储存器来制造，用于提供从阴极表面均匀的电子发射。 电子发射材料是浸渍有蜡或树脂材料的氧化钡颗粒的形式，以使氧化钡在空气中的化学还原最小化。 浸渍的氧化钡颗粒被夹在有孔箔和箔被焊接到的支撑结构之间。 在管烘烤或随后在阴极活化期间，蜡或树脂材料蒸发并且氧化钡通过孔径迁移以以均匀的方式覆盖箔的表面。 通过光刻法或通过在包含突出柱的阵列的基底上形成箔（例如，通过化学气相沉积，溅射沉积，蒸发或烧结）来实现箔中期望的孔的图案。 利用光刻技术，将所需的孔径图案直接化学蚀刻在箔上; 并且通过在具有柱阵列的基板上形成箔的技术，在形成箔之后，通过化学蚀刻去除具有其突出柱的基板。 通过用于形成孔的任一技术，也可以通过在阴极表面的选定部分上沉积一层反应性材料（例如锆或石墨），将阴影网格形成为阴极表面的整体部分。 这种反应性材料层防止在阴极表面上的选定图案上形成氧化钡的发光层。
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公开(公告)号：US4165473A
公开(公告)日：1979-08-21
申请号：US800837
申请日：1977-05-27
Applicant: Louis R. Falce
Inventor： Louis R. Falce
Abstract: The performance of microwave tubes at very high frequencies is limited by the ability of their thermionic cathodes to provide high emission current density in combination with long life and low evaporation of active material. An improved tube uses a cathode comprising a porous metal matrix consisting of a compacted mixture of tungsten and iridium particles, impregnated with a molten barium aluminate. Other alkaline earth oxides may be used as additives. The impregnated cathode outgasses easily and has a long life because it is not dependent on thin surface films. Thermionic emission is improved compared to a tungsten matrix, and barium evporation is reduced. The combination of power and frequency obtainable from the microwave tube is thereby significantly increased.
Abstract translation: 微波管在非常高的频率下的性能受到其热离子阴极提供高发射电流密度与活性材料的长寿命和低蒸发结合的能力的限制。 改进的管使用包含由熔融的铝酸钡浸渍的钨和铱颗粒的压实混合物组成的多孔金属基质的阴极。 其他碱土金属氧化物可用作添加剂。 浸渍的阴极容易脱气，寿命长，因为它不依赖于薄的表面膜。 与钨基体相比，热离子发射得到改善，钡的迁移减少。 从微波管获得的功率和频率的组合因此显着增加。
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公开(公告)号：US4137482A
公开(公告)日：1979-01-30
申请号：US796274
申请日：1977-05-12
Applicant: George Caryotakis , George Chan , Louis R. Falce , William R. Luebke, deceased , Walter Wood
Inventor： George Caryotakis , George Chan , Louis R. Falce , William R. Luebke, deceased , Walter Wood
IPC: H01J23/087 , H01J25/34
CPC classification number: H01J23/0873
Abstract: A traveling wave tube adapted for periodic magnetic focusing of the electron beam has a thin-walled, non-magnetic cylinder around the slow-wave circuit portion, forming part of the vacuum envelope. A stack of metal rings surrounding the cylinder has alternating non-magnetic rings and magnetic rings, the latter forming the periodic magnet pole pieces. The rings and the thin cylinder are all brazed together to provide a strong structure. Since the cylinder does not have to be self-supporting, it is made thin enough to allow close spacing between the pole pieces and beam, providing strong magnetic field and good focusing. The brazed joints between rings are not vacuum joints, so the probability of leaks is greatly reduced.
Abstract translation: 适用于电子束的周期性磁聚焦的行波管具有围绕慢波电路部分的薄壁非磁性圆筒，形成真空外壳的一部分。 围绕圆筒的一叠金属环具有交替的非磁性环和磁环，后者形成周期性磁极片。 环和薄圆筒都钎焊在一起，以提供坚固的结构。 由于气缸不必是自支撑的，它被制成足够薄以允许极片和梁之间的紧密间隔，提供强磁场和良好的聚焦。 环之间的钎焊接头不是真空接头，因此泄漏的可能性大大降低。
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公开(公告)号：US07545089B1
公开(公告)日：2009-06-09
申请号：US11085425
申请日：2005-03-21
Applicant: Louis R. Falce , R. Lawrence Ives
Inventor： Louis R. Falce , R. Lawrence Ives
CPC classification number: H01J35/06 , H01J35/08 , H01J2235/06 , H01J2235/081
Abstract: A porous cathode structure is fabricated from a plurality of wires which are placed in proximity to each other in elevated temperature and pressure for a sintering time. The sintering process produces the porous cathode structure which may be divided into a plurality of individual porous cathodes, one of which may be placed into a dispenser cathode support which includes a cavity for containing a work function reduction material such as BaO, CaO, and Al2O3. The work function reduction material migrates through the pores of the porous cathode from a work replenishment surface adjacent to the cavity of the dispenser cathode support to an emitting cathode surface, thereby providing a dispenser cathode which has a uniform work function and therefore a uniform electron emission.
Abstract translation: 多孔阴极结构由多个电线制成，多个电线在升高的温度和压力下彼此靠近放置烧结时间。 烧结过程产生多孔阴极结构，其可以分成多个单独的多孔阴极，其中一个可以放置在分配器阴极支撑件中，该阴极支撑件包括用于容纳诸如BaO，CaO和Al 2 O 3的功函数减少材料的空腔 。 工作功能减少材料通过多孔阴极的孔隙从邻近分配器阴极支撑件的空腔的工作补充表面迁移到发射阴极表面，从而提供分配器阴极，其具有均匀的功函数，因此具有均匀的电子发射 。
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Patent Agency Ranking
公开(公告)号：US07313226B1
公开(公告)日：2007-12-25
申请号：US11226659
申请日：2005-09-14
Applicant: Louis R. Falce , R. Lawrence Ives
Inventor： Louis R. Falce , R. Lawrence Ives
IPC: H01J35/08
CPC classification number: H01J35/06 , H01J35/08 , H01J2235/06 , H01J2235/081
Abstract: A plurality of high atomic number wires are sintered together to form a porous rod that is parted into porous disks which will be used as x-ray targets. A thermally conductive material is introduced into the pores of the rod, and when a stream of electrons impinges on the sintered wire target and generates x-rays, the heat generated by the impinging x-rays is removed by the thermally conductive material interspersed in the pores of the wires.
Abstract translation: 多个高原子序线被烧结在一起以形成多孔棒，该多孔棒被分成将用作x射线靶的多孔盘。 将导热材料引入棒的孔中，并且当电子流撞击在烧结的线靶上并产生x射线时，通过散射在X射线中的导热材料去除由入射的X射线产生的热量 电线孔。
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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。
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8.发明授权
公开(公告)号：US5218263A
公开(公告)日：1993-06-08
申请号：US742363
申请日：1991-08-08
Applicant: Louis R. Falce , Glenn S. Breeze
Inventor： Louis R. Falce , Glenn S. Breeze
IPC: H01J1/28
CPC classification number: H01J1/28
Abstract: A reservoir dispenser cathode structure having improved thermal efficiency is provided by inner and outer subassemblies. The inner subassembly has a molybdenum heater cup to which a tungsten-rhenium alloy cap is laser seam-welded. The outer subassembly has a tantalum support cylinder within which the inner subassembly is supported by means of a three-point suspension in the form of tabs that are lanced from the tantalum cylinder and spot-welded to the heater cup. The heater has a coiled-coil design wherein the coils are coated with Al.sub.3 O.sub.3 and small particle tungsten powder to increase the coil's thermal emissivity. This thermally-efficient structure permits the achievement of high current density (greater than 3 Amperes per square centimeter) with heater power that is less than 1.3 Watts.
Abstract translation: 具有改善的热效率的储液器分配器阴极结构由内部和外部子组件提供。 内部子组件具有钼加热器杯，钨 - 铼合金帽被激光缝焊。 外部子组件具有钽支撑筒，其中内部子组件通过三角形悬挂支撑，该三点悬挂形式为从钽圆柱形凸起并点焊到加热器杯的凸片形式。 加热器具有盘绕线圈设计，其中线圈涂覆有Al 3 O 3和小颗粒钨粉末以增加线圈的热发射率。 该热效率结构允许通过小于1.3瓦特的加热器功率实现高电流密度（大于3安培/平方厘米）。
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公开(公告)号：US4823044A
公开(公告)日：1989-04-18
申请号：US154743
申请日：1988-02-10
Applicant: Louis R. Falce
Inventor： Louis R. Falce
Abstract: A four-piece, easily manufactured dispenser cathode capable of current densities up to and exceeding 10 Amperes per square centimeter is particularly adapted for CRT applications because of its surprisingly low cost. A refractory material reservoir contains a pellet of tungsten and barium calcium aluminate and is sealed by a pellet of porous tungsten or tungsten mixture. The reservoir/pellet assembly is contained in a support cylinder to which the porous tungsten pellet may be welded. The inventive process includes the steps to prepare the pellets and assemble the four elements of the cathode.
Abstract translation: 具有高达10安培/平方厘米的电流密度的四片式容易制造的分配器阴极特别适用于CRT应用，因为其惊人的低成本。 耐火材料储存器包含钨和铝酸钙铝的颗粒，并且通过多孔钨或钨混合物的颗粒密封。 储存器/小球组件包含在支撑筒中，多孔钨颗粒可以焊接在支撑筒上。 本发明的方法包括制备颗粒并组装阴极的四种元素的步骤。
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公开(公告)号：US4233539A
公开(公告)日：1980-11-11
申请号：US17316
申请日：1979-03-05
Applicant: Louis R. Falce
Inventor： Louis R. Falce
Abstract: Secondary electrons emitted from an electron-collecting electrode of a vacuum tube degrade the performance. Emission of high-speed secondaries is reduced by coating the electron-collecting surface with a material of low atomic number. Emission of low-speed secondaries is a less predictable function of the surface material and structure. The invention comprises a coating of aluminum boride or similar substance, which has low secondary emission and is also easy to outgas.
Abstract translation: 从真空管的电子收集电极发射的二次电子降低了性能。 通过用原子序数低的材料涂覆电子收集表面来降低高速次级元件的发射。 低速次生的排放是表面材料和结构的一个较不可预测的功能。 本发明包括硼化铝或类似物质的涂层，其具有低的二次发射并且也易于排气。
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