公开(公告)号：US20150117617A1

公开(公告)日：2015-04-30

申请号：US14582782

申请日：2014-12-24

申请人： Kabushiki Kaisha Toshiba ,  Toshiba Electron Tubes & Devices Co., Ltd.

发明人： Tomonari ISHIHARA ,  Naoki Akahori ,  Hidero Anno

IPC分类号： H01J35/14 ,  H05G1/10 ,  H01J35/10

CPC分类号： H01J35/06 ,  A61B6/44 ,  H01J1/16 ,  H01J1/18 ,  H01J1/88 ,  H01J3/06 ,  H01J3/18 ,  H01J19/10 ,  H01J19/42 ,  H01J23/04 ,  H01J23/083 ,  H01J29/04 ,  H01J29/50 ,  H01J29/62 ,  H01J35/14 ,  H01J37/065 ,  H01J2229/481 ,  H01J2229/4827 ,  H01J2229/4831 ,  H01J2229/50 ,  H01J2229/582 ,  H01J2229/5835 ,  H01J2235/06 ,  H01J2237/032 ,  H01J2237/049 ,  H01J2237/06375 ,  H01J2893/0005 ,  H01J2893/005 ,  H01J2893/0088 ,  H01J2893/0089 ,  H01J2893/0094

摘要： According to one embodiment, an X-ray tube includes an anode target, a cathode including a filament and a convergence electrode which includes a groove portion, and an envelope. The groove portion includes a pair of first bottom surfaces which are located in the same plane as the filament and between which the filament is interposed in a width direction of the groove portion, and a pair of second bottom surfaces between which the filament and the pair of first bottom surfaces are interposed in a length direction of the groove portion and which are located closer to an opening of the groove portion than the pair of first bottom surfaces.

摘要翻译： 根据一个实施例，X射线管包括阳极靶，包括细丝的阴极和包括沟槽部分的会聚电极和外壳。 槽部包括一对第一底面，该第一底面位于与灯丝相同的平面上，并且灯丝沿沟槽部的宽度方向插入其间，一对第二底面之间形成有灯丝和一对 的第一底表面沿着槽部的长度方向设置，并且位于比一对第一底面更靠近槽部的开口部。

公开(公告)号：US08922107B2

公开(公告)日：2014-12-30

申请号：US14115534

申请日：2012-05-09

申请人： Triveni Rao ,  John Walsh ,  Elizabeth Gangone

发明人： Triveni Rao ,  John Walsh ,  Elizabeth Gangone

IPC分类号： H01J1/32 ,  H01J29/41 ,  H01J9/12 ,  H01J1/35 ,  H01J29/04 ,  H01J3/02 ,  H01J25/10 ,  H01J23/04 ,  H01J9/18

CPC分类号： H01J29/04 ,  H01J3/021 ,  H01J9/125 ,  H01J9/18 ,  H01J23/04 ,  H01J25/10

摘要： A vacuum encapsulated, hermetically sealed cathode capsule for generating an electron beam of secondary electrons, which generally includes a cathode element having a primary emission surface adapted to emit primary electrons, an annular insulating spacer, a diamond window element comprising a diamond material and having a secondary emission surface adapted to emit secondary electrons in response to primary electrons impinging on the diamond window element, a first cold-weld ring disposed between the cathode element and the annular insulating spacer and a second cold-weld ring disposed between the annular insulating spacer and the diamond window element. The cathode capsule is formed by a vacuum cold-weld process such that the first cold-weld ring forms a hermetical seal between the cathode element and the annular insulating spacer and the second cold-weld ring forms a hermetical seal between the annular spacer and the diamond window element whereby a vacuum encapsulated chamber is formed within the capsule.

摘要翻译： 一种用于产生二次电子的电子束的真空密封的气密密封阴极胶囊，其通常包括具有适于发射一次电子的主要发射表面的阴极元件，环形绝缘间隔物，包含金刚石材料的金刚石窗体元件， 二次发射表面适于响应于撞击在金刚石窗口元件上的初级电子发射二次电子，设置在阴极元件和环形绝缘间隔物之间​​的第一冷焊环和设置在环形绝缘间隔物和第二冷焊环之间的第二冷焊环， 钻石窗元素。 阴极胶囊通过真空冷焊工艺形成，使得第一冷焊环在阴极元件和环形绝缘垫片之间形成密封，第二冷焊环在环形间隔件和第二冷焊环之间形成密封 金刚石窗元件，由此在胶囊内形成真空密封室。

公开(公告)号：US07808182B2

公开(公告)日：2010-10-05

申请号：US11832193

申请日：2007-08-01

申请人： David Arthur New ,  Robert Amantea ,  Peter James Coyle

发明人： David Arthur New ,  Robert Amantea ,  Peter James Coyle

IPC分类号： H01J23/02 ,  H01J23/08

CPC分类号： H01J23/04 ,  H01J9/025 ,  H01J23/06 ,  H01J2201/304

摘要： The present invention provides an enhanced THz electromagnetic source structure achieving a very high aspect ratio of 500 to 1 of electron beam width to electron beam thickness of the electron beam moving in the direction across the grating structure while maintaining its cross-section. The structure comprises a magnetic circuit providing a unique low magnetic field slot placed in a steel core for the placement of an electron gun, thus allowing the electron beam to be focused without the interaction of a magnetic field while still supporting a high magnetic field in the grating region. Additionally, the structure comprises an electrostatic shield preventing potential difference between the anode voltage and the grounded steel core from affecting the focusing of the electron beam.

摘要翻译： 本发明提供了一种增强的THz电磁源结构，其实现电子束宽度与电子束的电子束厚度的500比1的非常高的纵横比，该电子束在横跨光栅结构的方向上移动，同时保持其横截面。 该结构包括磁路，其提供放置在钢芯中的独特的低磁场槽，用于放置电子枪，从而允许电子束在没有磁场的相互作用的同时聚焦，同时仍支持高磁场 光栅区域。 此外，该结构包括防止阳极电压和接地钢芯之间的电位差的静电屏蔽影响电子束的聚焦。

公开(公告)号：US20080061700A1

公开(公告)日：2008-03-13

申请号：US11854416

申请日：2007-09-12

申请人： Robert H. Blick

发明人： Robert H. Blick

IPC分类号： H01J25/02

CPC分类号： H01J23/04 ,  H01J25/02

摘要： A microscale vacuum electronic device (10) provides for a mechanical modulation of cathode (12) position allowing improved high-frequency modulation of an electron beam (24) useful for vacuum electronic devices such as klystrons, klystrodes, and high frequency triodes.

摘要翻译： 微型真空电子设备（10）提供对阴极（12）位置的机械调制，允许改进对用于真空电子设备（例如速调管，klystrodes和高频三极管）的电子束（24）的高频调制。

公开(公告)号：US20040118840A1

公开(公告)日：2004-06-24

申请号：US10469728

申请日：2004-01-14

发明人： Chun Sik Lee ,  Hyeck-Hee Lee ,  Min-Suk Lee

IPC分类号： H05B006/72

CPC分类号： H01J23/20 ,  H01J23/04 ,  H01J23/06 ,  H01J25/04

摘要： The invention relates to a device (1) for producing high frequency microwaves comprising a cathode arrangement with heatable cathodes (15) for emitting electrons, two grid arrangements for controlling and focusing fluxes of electrons and an anode (3) for receiving the electrons flowing through the grid arrangements. The cathode arrangement and the first grid arrangement, in addition to a locking element or a throttle element (16), define an input cavity (12) forming a resonant cavity. The anode (3) and the second grid arrangement define an output cavity also forming a resonant cavity. Said cathode arrangement comprises a mounting for the cathode (15) such that a deformation of the cathode (15) is avoided by reducing the distance between the heatable cathode and the grids (18).

摘要翻译： 本发明涉及一种用于生产高频微波的装置（1），其包括具有用于发射电子的可加热阴极（15）的阴极装置，用于控制和聚焦电子通量的两个格栅装置和用于接收流过电子的阳极（3） 电网安排。 除了锁定元件或节流元件（16）之外，阴极布置和第一格栅布置限定形成谐振腔的输入腔（12）。 阳极（3）和第二栅极布置限定了也形成谐振腔的输出腔。 所述阴极装置包括用于阴极（15）的安装件，从而通过减小可加热阴极和栅格（18）之间的距离来避免阴极（15）的变形。

公开(公告)号：US20040020924A1

公开(公告)日：2004-02-05

申请号：US10305001

申请日：2002-11-27

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Jong-Chull Shon ,  Boris V. Rayskiy ,  Chul Kim ,  Hyun-Jun Ha

IPC分类号： H05B006/64

CPC分类号： H01J25/587 ,  H01J23/04 ,  H01J23/11 ,  H05B6/72

摘要： A magnetron includes a positive polar cylinder, a plurality of vanes, a filament, upper and lower shields, and upper and lower pole pieces. The vanes are disposed in the positive polar cylinder to constitute a positive polar section. The filament is disposed on an axis of the positive polar cylinder to define an activating space. The upper and lower shields cover a top and bottom of the filament, respectively. The upper and lower pole pieces are disposed to induce magnetic flux into the activating space. The upper shield preferably has a diameter ranging from 6.95 mm to 7.10 mm. Additionally, the lower shield preferably has a diameter ranging from 6.95 mm to 7.10 mm.

摘要翻译： 磁控管包括正极柱，多个叶片，细丝，上下屏蔽以及上极和下极片。 叶片设置在正极柱中以构成正极区。 灯丝设置在正极柱的轴线上以限定激活空间。 上下屏蔽分别覆盖灯丝的顶部和底部。 上极靴和下极靴被设置成将磁通量引入活动空间。 上护罩的直径优选为6.95mm至7.10mm。 此外，下屏蔽件优选具有6.95mm至7.10mm的直径。

公开(公告)号：US06297592B1

公开(公告)日：2001-10-02

申请号：US09631890

申请日：2000-08-04

申请人： Yehuda Goren ,  Sungho Jin ,  Gregory P Kochanski ,  Wei Zhu

发明人： Yehuda Goren ,  Sungho Jin ,  Gregory P Kochanski ,  Wei Zhu

IPC分类号： H01J2304

CPC分类号： B82Y10/00 ,  H01J9/025 ,  H01J23/04 ,  H01J23/06 ,  H01J2201/30469 ,  Y10S977/939

摘要： An improved gridded microwave tube is provided, the tube containing a cold cathode, an anode, and a grid located between the anode and cathode. In one embodiment, the cold cathode has a refractory metal substrate and carbon nanotube emitters, the emitters having a diameter of 1 to 300 nm and a length of 0.05 to 100 &mgr;m. The grid-cathode spacing is 1 to 100 &mgr;m, the grid contains apertures having a maximum dimension of 0.5 to 100 &mgr;m, and the grid thickness is 0.5 to 100 &mgr;m. Emission from the cathode directly onto the grid material itself, which undesirably heats the grid, is reduced by either (a) the presence of a shadow mask between the grid and the emitters or (b) selective formation of the emitters in locations that correspond to the grid apertures. The microwave tube operates at a frequency of greater than 0.5 GHz, advantageously greater than 2 GHz.

摘要翻译： 提供了一种改进的网格微波管，该管包含位于阳极和阴极之间的冷阴极，阳极和栅极。 在一个实施方案中，冷阴极具有难熔金属基底和碳纳米管发射体，发射体的直径为1至300nm，长度为0.05至100μm。 栅极 - 阴极间距为1〜100μm，栅格包含最大尺寸为0.5〜100μm的孔，栅格厚度为0.5〜100μm。 通过（a）在栅格和发射体之间存在阴影掩模，或（b）在对应于栅格和发射体的位置中选择性地形成发射体，从阴极直接排放到栅格材料本身上，这不利地加热栅格， 网格孔。 微波管的工作频率大于0.5GHz，有利地大于2GHz。

公开(公告)号：US06250984B1

公开(公告)日：2001-06-26

申请号：US09236966

申请日：1999-01-25

申请人： Sungho Jin ,  Gregory Peter Kochanski ,  Wei Zhu

发明人： Sungho Jin ,  Gregory Peter Kochanski ,  Wei Zhu

IPC分类号： H01J904

CPC分类号： H01J23/06 ,  B82Y10/00 ,  H01J1/304 ,  H01J9/025 ,  H01J23/04 ,  H01J2201/30469 ,  Y10S977/842

摘要： An improved process for fabricating nanotube field emitter structures is provided, in which the nanotubes protrude from a supporting base material to improve emission properties. The resulting emitter structure are useful in a variety of devices, including microwave vacuum tube devices and flat-panel, field-emission displays. To attain the protruding nanotube emitter structure, according to one embodiment of the invention, nanotubes and metal particles are mixed and consolidated into a compact, and the compact is then sectioned to expose a substantial number of nanotube ends. A layer of the metal is selectively etched from the sectioned surface, leaving the exposed nanotubes protruding from the surface. The extent of protrusion is at least twice the average diameter of the nanotubes, advantageously at least ten times the average diameter of the nanotubes.

摘要翻译： 提供了一种用于制造纳米管场发射极结构的改进方法，其中纳米管从支撑基材突出以改善发射性质。 所得到的发射极结构可用于各种装置，包括微波真空管装置和平板，场致发射显示器。 为了获得突出的纳米管发射体结构，根据本发明的一个实施方案，将纳米管和金属颗粒混合并固结成压实体，然后将压块分段以暴露大量的纳米管末端。 从切片表面选择性地蚀刻金属层，留下暴露的纳米管从表面突出。 突起的程度是纳米管的平均直径的至少两倍，有利地是纳米管的平均直径的至少十倍。

公开(公告)号：US6034469A

公开(公告)日：2000-03-07

申请号：US981187

申请日：1997-12-09

申请人： Eiichirou Uda ,  Toshiharu Higuchi ,  Osamu Nakamura ,  Kiyomi Koyama ,  Sadao Matsumoto ,  Yoshiaki Ouchi ,  Kazuo Kobayashi ,  Takashi Sudo ,  Katsuhisa Homma

发明人： Eiichirou Uda ,  Toshiharu Higuchi ,  Osamu Nakamura ,  Kiyomi Koyama ,  Sadao Matsumoto ,  Yoshiaki Ouchi ,  Kazuo Kobayashi ,  Takashi Sudo ,  Katsuhisa Homma

IPC分类号： H01J1/28 ,  H01J9/04 ,  H01J23/04 ,  H01J23/087 ,  H01J1/14

CPC分类号： H01J23/087 ,  H01J1/28 ,  H01J23/04 ,  H01J9/042 ,  H01J2223/04

摘要： There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an electron emission surface of the large particle diameter low porosity region and has an average particle diameter smaller than an average particle diameter of the large particle diameter low pore region and a porosity higher than a porosity of the large particle diameter low porosity region, the impregnated-type cathode being impregnated with an electron emission substance.

摘要翻译： PCT No.PCT / JP96 / 01527 Sec。 371日期1997年12月9日第 102（e）1997年12月9日PCT PCT 1996年6月6日PCT公布。 公开号WO96 / 42100 PCT 日期：1996年12月27日提供一种浸渍型阴极基板，其包括大粒径低孔隙率区域和小粒径高孔隙率区域，该区域设置在大粒径低孔隙率区域的电子发射表面的一侧， 平均粒径小于大粒径低孔区域的平均粒径，孔隙率高于大粒径低孔隙率区域的孔隙率，浸渍型阴极浸渍有电子发射物质。

公开(公告)号：US5399935A

公开(公告)日：1995-03-21

申请号：US78825

申请日：1993-06-21

申请人： Noel Santonja ,  Pierre-Yves Chabaud

发明人： Noel Santonja ,  Pierre-Yves Chabaud

IPC分类号： H01J23/04 ,  H01J23/065

CPC分类号： H01J23/065 ,  H01J23/04

摘要： An electron gun comprises a cathode made of an emissive material with an active face emitting electrons through a control grid that is placed before the active face but has no contact with it. The active face has emissive zones and non-emissive zones. The non-emissive zones are formed by grooves hollowed out of the emissive material. The control grid has solid parts that directly face the grooves. Application to electron guns with reduced heating of the control grid. FIG. 5 .

摘要翻译： 电子枪包括由发射材料制成的阴极，其具有通过控制栅格发射电子的主动面，该控制栅极放置在有源面之前但不与其接触。 主动面具有发射区和非发射区。 非发光区域由从发光材料中挖出的凹槽形成。 控制网格具有直接面向凹槽的实心部件。 应用于控制电网加热的电子枪。 图。 5。