公开(公告)号：US2088722A

公开(公告)日：1937-08-03

申请号：US8496836

申请日：1936-06-12

Applicant: AMERICAN TELEPHONE & TELEGRAPH

Inventor： KIMBALL POTTER RALPH

IPC: H01J19/80 ,  H01J21/36 ,  H01J25/04 ,  H01P7/04 ,  H03B9/01 ,  H03F3/52

CPC classification number: H01P7/04 ,  H01J19/80 ,  H01J21/36 ,  H01J25/04 ,  H03B9/01 ,  H03F3/52

公开(公告)号：US09224571B2

公开(公告)日：2015-12-29

申请号：US13825918

申请日：2011-09-26

Applicant: Junji Urakawa ,  Nobuhiro Terunuma ,  Toshikazu Takatomi

Inventor： Junji Urakawa ,  Nobuhiro Terunuma ,  Toshikazu Takatomi

IPC: H01J23/20 ,  H01J29/48 ,  H05H7/08 ,  H01J3/02 ,  H01J3/36 ,  H05G2/00

CPC classification number: H01J29/481 ,  H01J3/021 ,  H01J3/36 ,  H01J23/06 ,  H01J25/04 ,  H01J2237/0432 ,  H01J2237/04735 ,  H01J2237/062 ,  H01J2237/06333 ,  H05G2/00 ,  H05H7/08 ,  H05H2007/084

Abstract: A photocathode high-frequency electron-gun cavity apparatus of the present invention is provided with a high-frequency acceleration cavity (1), a photocathode (8, 15), a laser entering port (9), a high-frequency power input coupler port (10), and a high-frequency resonant tuner (16). Here, the apparatus adopts an ultra-small high-frequency accelerator cavity which contains a cavity cell formed only with a smooth and curved surface at an inner face thereof without having a sharp angle part for preventing discharging, obtaining higher strength of high-frequency electric field, and improving high-frequency resonance stability. Further, the photocathode is arranged at an end part of a half cell (5) of the high-frequency acceleration cavity for maximizing electric field strength at the photocathode face, perpendicular incidence of laser is ensured by arranging a laser entering port at a position facing to the photocathode behind an electron beam extraction port of the high-frequency acceleration cavity for maximizing quality of short-bunch photoelectrons, and a high-frequency power input coupler port is arranged at a side part of the cell of the high-frequency acceleration cavity for enhancing high-frequency electric field strength. According to the above, it is possible to provide a small photocathode high-frequency electron-gun cavity apparatus capable of generating a high-strength and high-quality electron beam.

Abstract translation: 本发明的光电阴极高频电子枪腔装置设置有高频加速腔（1），光电阴极（8,15），激光进入口（9），高频电力输入耦合器 端口（10）和高频谐振调谐器（16）。 这里，该装置采用超小型高频加速器腔，其包含在其内表面上仅形成有平滑且曲面的空腔，而不具有用于防止放电的锐角部，从而获得较高强度的高频电 场，提高高频共振稳定性。 此外，光电阴极被布置在高频加速腔的半电池（5）的端部，用于使光电阴极面的电场强度最大化，通过将激光进入端口布置在面对的位置来确保激光的垂直入射 到高频加速腔的电子束提取口后面的光电阴极，用于使短束光电子的质量最大化，并且高频电力输入耦合器端口布置在高频加速腔的单元的侧面 用于提高高频电场强度。 根据上述，可以提供能够产生高强度和高质量电子束的小型光电阴极高频电子枪腔装置。

公开(公告)号：US20130187541A1

公开(公告)日：2013-07-25

申请号：US13825918

申请日：2011-09-26

Applicant: Junji Urakawa ,  Nobuhiro Terunuma ,  Toshikazu Takatomi

Inventor： Junji Urakawa ,  Nobuhiro Terunuma ,  Toshikazu Takatomi

IPC: H01J29/48

CPC classification number: H01J29/481 ,  H01J3/021 ,  H01J3/36 ,  H01J23/06 ,  H01J25/04 ,  H01J2237/0432 ,  H01J2237/04735 ,  H01J2237/062 ,  H01J2237/06333 ,  H05G2/00 ,  H05H7/08 ,  H05H2007/084

Abstract: A photocathode high-frequency electron-gun cavity apparatus of the present invention is provided with a high-frequency acceleration cavity (1), a photocathode (8, 15), a laser entering port (9), a high-frequency power input coupler port (10), and a high-frequency resonant tuner (16). Here, the apparatus adopts an ultra-small high-frequency accelerator cavity which contains a cavity cell formed only with a smooth and curved surface at an inner face thereof without having a sharp angle part for preventing discharging, obtaining higher strength of high-frequency electric field, and improving high-frequency resonance stability. Further, the photocathode is arranged at an end part of a half cell (5) of the high-frequency acceleration cavity for maximizing electric field strength at the photocathode face, perpendicular incidence of laser is ensured by arranging a laser entering port at a position facing to the photocathode behind an electron beam extraction port of the high-frequency acceleration cavity for maximizing quality of short-bunch photoelectrons, and a high-frequency power input coupler port is arranged at a side part of the cell of the high-frequency acceleration cavity for enhancing high-frequency electric field strength. According to the above, it is possible to provide a small photocathode high-frequency electron-gun cavity apparatus capable of generating a high-strength and high-quality electron beam.

Abstract translation: 本发明的光电阴极高频电子枪腔装置设置有高频加速腔（1），光电阴极（8,15），激光进入口（9），高频电力输入耦合器 端口（10）和高频谐振调谐器（16）。 这里，该装置采用超小型高频加速器腔，其包含在其内表面上仅形成有平滑且曲面的空腔，而不具有用于防止放电的锐角部，从而获得较高强度的高频电 场，提高高频共振稳定性。 此外，光电阴极被布置在高频加速腔的半电池（5）的端部，用于使光电阴极面的电场强度最大化，通过将激光进入端口布置在面对的位置来确保激光的垂直入射 到高频加速腔的电子束提取口后面的光电阴极，用于使短束光电子的质量最大化，并且高频电力输入耦合器端口布置在高频加速腔的单元的侧面 用于提高高频电场强度。 根据上述，可以提供能够产生高强度和高质量电子束的小型光电阴极高频电子枪腔装置。

公开(公告)号：US07417376B2

公开(公告)日：2008-08-26

申请号：US11357417

申请日：2006-02-21

Applicant: Steven Aitken

Inventor： Steven Aitken

IPC: H01J23/46

CPC classification number: H01J25/04 ,  H01J23/10

Abstract: An electron beam tube device such as an inductive output tube of the integral cavity type has a RF window which re-enters the interaction space within the cavity thereby defining a space that is within the interaction cavity but is outside the vacuum. An output coupler in the form of an output coupling loop protrudes into this space and thus couples with the electromagnetic field within the interaction space, whilst remaining outside the vacuum envelope. This allows the coupling loop to be adjusted without any additional seal arrangement between the coupling loop and walls of the output cavity.

Abstract translation: 诸如整体腔型的感应输出管的电子束管装置具有RF窗口，RF窗口重新进入空腔内的相互作用空间，从而限定在相互作用空腔内但在真空之外的空间。 输出耦合环形式的输出耦合器突出到该空间中，从而与相互作用空间内的电磁场耦合，同时保持在真空外壳之外。 这允许在耦合回路和输出腔的壁之间没有任何额外的密封布置来调节耦合回路。

公开(公告)号：US07227297B2

公开(公告)日：2007-06-05

申请号：US10917309

申请日：2004-08-13

Applicant: Triveni Srinivasan-Rao ,  Ilan Ben-Zvi ,  Jorg Kewisch ,  Xiangyun Chang

Inventor： Triveni Srinivasan-Rao ,  Ilan Ben-Zvi ,  Jorg Kewisch ,  Xiangyun Chang

IPC: H01J31/48

CPC classification number: H01J3/021 ,  H01J23/06 ,  H01J25/04 ,  H05H15/00

Abstract: An electron gun for generating an electron beam is provided, which includes a secondary emitter. The secondary emitter includes a non-contaminating negative-electron-affinity (NEA) material and emitting surface. The gun includes an accelerating region which accelerates the secondaries from the emitting surface. The secondaries are emitted in response to a primary beam generated external to the accelerating region. The accelerating region may include a superconducting radio frequency (RF) cavity, and the gun may be operated in a continuous wave (CW) mode. The secondary emitter includes hydrogenated diamond. A uniform electrically conductive layer is superposed on the emitter to replenish the extracted current, preventing charging of the emitter. An encapsulated secondary emission enhanced cathode device, useful in a superconducting RF cavity, includes a housing for maintaining vacuum, a cathode, e.g., a photocathode, and the non-contaminating NEA secondary emitter with the uniform electrically conductive layer superposed thereon.

Abstract translation: 提供了一种用于产生电子束的电子枪，其包括二次发射器。 二次发射体包括无污染的负电子亲和力（NEA）材料和发射表面。 枪包括从发射表面加速次级的加速区域。 响应于在加速区域外部产生的主波束发射次级。 加速区域可以包括超导射频（RF）腔，并且枪可以以连续波（CW）模式操作。 二次发射体包括氢化金刚石。 均匀的导电层叠加在发射器上以补充提取的电流，防止发射极的充电。 可用于超导RF空腔的封装的二次发射增强型阴极器件包括用于维持真空的壳体，阴极（例如光电阴极）以及其上叠加有均匀导电层的无污染NEA次级发射器。

公开(公告)号：US07145297B2

公开(公告)日：2006-12-05

申请号：US10982192

申请日：2004-11-04

Applicant: Heinz P. Bohlen ,  Yanxia Li ,  Paul A. Krzeminski ,  Edmund T. Davies ,  Robert N. Tomoe

Inventor： Heinz P. Bohlen ,  Yanxia Li ,  Paul A. Krzeminski ,  Edmund T. Davies ,  Robert N. Tomoe

IPC: H05H13/00 ,  H01J25/08

CPC classification number: H01J25/04 ,  H01J23/005 ,  H01J2223/005 ,  H01J2225/04

Abstract: An inductive output tube (IOT) operates in a frequency range above 1000 MHz. An output window may be provided to separate a vacuum portion of the IOT from an atmospheric pressure portion of the IOT, the output window being surrounded by a cooling air manifold, the manifold including an air input port and a plurality of apertures permitting cooling air to move from the port, through the manifold and into the atmospheric pressure portion of the IOT. The output cavity may include a liquid coolant input port; a lower circular coolant channel coupled to receive liquid coolant from the liquid coolant input port; a vertical coolant channel coupled to receive liquid coolant from the lower circular coolant channel; an upper circular coolant channel coupled to receive liquid coolant from the vertical coolant channel; and a liquid coolant exhaust port coupled to receive liquid coolant from the upper circular coolant channel.

Abstract translation: 感应输出管（IOT）在1000 MHz以上的频率范围内工作。 可以提供输出窗口以将IOT的真空部分与IOT的大气压部分分离，输出窗被冷却空气歧管包围，歧管包括空气输入端口和多个孔，允许冷却空气 从端口移动通过歧管并进入IOT的大气压力部分。 输出腔可以包括液体冷却剂输入端口; 下部圆形冷却剂通道，其耦合以从液体冷却剂输入端口接收液体冷却剂; 垂直冷却剂通道，其联接以从下部圆形冷却剂通道接收液体冷却剂; 上部圆形冷却剂通道，其联接以从垂直冷却剂通道接收液体冷却剂; 以及液体冷却剂排出口，其联接以从上部圆形冷却剂通道接收液体冷却剂。

公开(公告)号：US20060091831A1

公开(公告)日：2006-05-04

申请号：US10982192

申请日：2004-11-04

Applicant: Heinz Bohlen ,  Yanxia Li ,  Paul Krzeminski ,  Edmund Davies ,  Robert Tornoe

Inventor： Heinz Bohlen ,  Yanxia Li ,  Paul Krzeminski ,  Edmund Davies ,  Robert Tornoe

IPC: H05H13/00

CPC classification number: H01J25/04 ,  H01J23/005 ,  H01J2223/005 ,  H01J2225/04

Abstract: An inductive output tube (IOT) operates in a frequency range above 1000 MHz. An output window may be provided to separate a vacuum portion of the IOT from an atmospheric pressure portion of the IOT, the output window being surrounded by a cooling air manifold, the manifold including an air input port and a plurality of apertures permitting cooling air to move from the port, through the manifold and into the atmospheric pressure portion of the IOT. The output cavity may include a liquid coolant input port; a lower circular coolant channel coupled to receive liquid coolant from the liquid coolant input port; a vertical coolant channel coupled to receive liquid coolant from the lower circular coolant channel; an upper circular coolant channel coupled to receive liquid coolant from the vertical coolant channel; and a liquid coolant exhaust port coupled to receive liquid coolant from the upper circular coolant channel.

公开(公告)号：US06998783B2

公开(公告)日：2006-02-14

申请号：US10378971

申请日：2003-03-03

Applicant: Robert Spencer Symons

Inventor： Robert Spencer Symons

IPC: H01J25/02

CPC classification number: H01J23/0275 ,  H01J23/24 ,  H01J25/04

Abstract: An inductive output tube (IOT) provides improved efficiency and larger bandwidth. In one embodiment, an IOT is provided with an electron gun that generates an electron beam, a tube body, a collector for collecting the electron beam, and an extended-interaction output circuit. The electron beam travels through the tube body and the extended-interaction output circuit. The extended-interaction output circuit is located within the tube body. The extended-interaction output circuit comprises a short-circuited resonant structure. The extended-interaction output circuit is used for reducing undesired components of a radio frequency (RF) wave, increasing desired components of the RF wave, and slowing down the propagation of the RF wave. (That is the circuit increases the integral of the electric field along the path of the beam electrons while decreasing the stored energy associated with those fields.) The extended-interaction output circuit also provides the IOT with larger bandwidth operation. The collector may be a multi-stage depressed collector having voltages on the collector to result in a constant efficiency characteristic. The radio-frequency drive power to the tube is connected by means of a broadband impedance matching transformer, and the grid to cathode capacitance may be reduced by depressions in the surface of the cathode directly underneath the grid structure.

Abstract translation: 感应输出管（IOT）提供更高的效率和更大的带宽。 在一个实施例中，IOT设置有产生电子束的电子枪，管体，用于收集电子束的收集器和扩展交互输出电路。 电子束通过管体和扩展相互作用输出电路。 扩展交互输出电路位于管体内。 扩展交互输出电路包括短路谐振结构。 扩展交互输出电路用于减少射频（RF）波的不期望的分量，增加RF波的期望分量，并减慢RF波的传播。 （这是电路增加沿着电子束电子的路径的电场的积分，同时减少与这些场相关联的存储能量。）扩展交互输出电路还为IOT提供更大的带宽操作。 收集器可以是在集电极上具有电压以产生恒定效率特性的多级下压集电极。 通过宽带阻抗匹配变压器连接到管的射频驱动电源，并且栅极与阴极电容可以通过直接在栅极结构下面的阴极表面的凹陷来减小。

公开(公告)号：US20040263050A1

公开(公告)日：2004-12-30

申请号：US10815718

申请日：2004-04-02

Applicant: THALES

Inventor： Andre Gabioud ,  Michel Langlois

IPC: H01J001/00 ,  H01J029/46

CPC classification number: H01J25/04 ,  H01J1/46 ,  H01J3/027 ,  H01J23/07 ,  H01J37/065

Abstract: In a control grid for an electron tube, the grid has first bars that are evenly spaced out on a skewed surface and extend substantially as circle pseudo-involutes about a central hub.

公开(公告)号：US20040222744A1

公开(公告)日：2004-11-11

申请号：US10718258

申请日：2003-11-19

Applicant: Communications & Power Industries, Inc.,

Inventor： Robert Tornoe ,  Yanxia Li ,  Paul A. Krzeminski ,  Edmund T. Davies ,  Leroy L. Higgins ,  Gordon R. Lavering

IPC: H01J025/34

CPC classification number: H01J23/0275 ,  H01J25/04

Abstract: An electrode structure for a vacuum tube is formed by having a ceramic insulating body act as the tube wall. Electrode areas are formed on the inside of the tube by coating the inside of the tube wall with a conductor. These electrode areas are then coupled, as necessary, to external electronic circuits. The coupling may be performed by through-wall connections, metallized abutting connections and other conventional means. The ceramic insulating body may be generally cylindrical in shape and may be formed of a material such as aluminum nitride, beryllium oxide, aluminum oxide and the like.

Abstract translation: 通过使陶瓷绝缘体作为管壁形成真空管的电极结构。 通过用导体涂覆管壁的内部，在管的内部形成电极区域。 然后根据需要将这些电极区域耦合到外部电子电路。 联接可以通过通壁连接，金属化邻接连接和其他常规手段来执行。 陶瓷绝缘体的形状通常为圆柱形，并且可以由诸如氮化铝，氧化铍，氧化铝等的材料形成。