公开(公告)号：US08963424B1

公开(公告)日：2015-02-24

申请号：US13016995

申请日：2011-01-29

申请人： Jeffrey M. Neilson

发明人： Jeffrey M. Neilson

IPC分类号： H01J23/40

CPC分类号： H01J23/40 ,  H01J25/025

摘要： A cylindrical waveguide with a mode converter transforms a whispering gallery mode from a gyrotron cylindrical waveguide with a helical cut launch edge to a quasi-Gaussian beam suitable for conveyance through a corrugated waveguide. This quasi-Gaussian beam is radiated away from the waveguide using a spiral cut launch edge, which is in close proximity to a first mode converting reflector. The first mode converting reflector is coupled to a second mode converting reflector which provides an output free-space HE11 mode wave suitable for direct coupling into a corrugated waveguide. The radiated beam produced at the output of the second mode converting reflector is substantially circular.

摘要翻译： 具有模式转换器的圆柱形波导将来自具有螺旋切割发射边缘的陀螺仪圆柱形波导的耳语廊模式转换成适合于通过波纹波导传送的准高斯光束。 使用紧邻第一模式转换反射器的螺旋切割发射边缘将该准高斯光束从波导辐射离开。 第一模式转换反射器耦合到第二模式转换反射器，其提供适于直接耦合到波纹波导中的输出自由空间HE11模式波。 在第二模式转换反射器的输出处产生的辐射光束基本上是圆形的。

公开(公告)号：US20100141143A1

公开(公告)日：2010-06-10

申请号：US12658356

申请日：2010-02-05

申请人： Shenggang Liu ,  Chaoyu Liu

发明人： Shenggang Liu ,  Chaoyu Liu

IPC分类号： H01J25/10

CPC分类号： H01J23/075 ,  H01J25/02 ,  H01J25/025

摘要： A coaxial cavity gyrotron with two electron beams includes an electron gun (magnetron injection gun, “MIG,” with two beams), a coaxial beam-wave interaction cavity and an outer magnetic field tube. The coaxial beam-wave interaction cavity consists of two parts: an outer conductor and an inner conductor. The two hollow electron beams produced by the MIG are located between the outer conductor and the inner conductor. The MIG includes inner and outer anodes, with a single cathode located between the anodes. The cathode further includes two emitter rings which produce the two hollow electron beams. The entire gyrotron is immersed in the magnetic field tube such that the magnetic field profile is the same or similar to that for a coaxial gyrotron with one electron beam.

摘要翻译： 具有两个电子束的同轴腔回旋加速器包括电子枪（磁控管注入枪，具有两个光束的“MIG”），同轴波束相互作用腔和外部磁场管。 同轴波束相互作用腔由两部分组成：外部导体和内部导体。 由MIG制造的两个空心电子束位于外导体和内导体之间。 MIG包括内阳极和外阳极，阴极位于阳极之间。 阴极还包括产生两个中空电子束的两个发射环。 将整个陀螺仪浸入磁场管中，使得磁场分布与具有一个电子束的同轴回旋加速器的磁场分布相同或相似。

公开(公告)号：US06787998B2

公开(公告)日：2004-09-07

申请号：US10367054

申请日：2003-02-14

申请人： Olgierd Dumbrajs

发明人： Olgierd Dumbrajs

IPC分类号： H01J2558

CPC分类号： H01J25/025 ,  H01J23/54

摘要： In an inner conductor of a coaxial gyrotron, which inner conductor is disposed on the cathode of the gyrotron and includes an entrance funnel, a center part and an exit funnel, axial corrugations are formed in the conductor by axial grooves formed into its wall such that they begin at the end of the entrance funnel and have, in the center part, an increasing depths up to the exit funnel, in which the depth again becomes steadily smaller, the corrugations being evenly distributed about the inner circumference of the inner conductor.

摘要翻译： 在同轴回旋加速器的内导体中，内导体设置在陀螺仪的阴极上并且包括入口漏斗，中心部分和出口漏斗，通过形成在其壁中的轴向凹槽在导体中形成轴向波纹，使得 它们在入口漏斗的末端开始，并且在中心部分具有越来越深的深度，其中深度再次变得越来越小，波纹均匀分布在内部导体的内圆周上。

公开(公告)号：US5818170A

公开(公告)日：1998-10-06

申请号：US400332

申请日：1995-03-07

申请人： Toshiyuki Kikunaga ,  Hiroyuki Asano

发明人： Toshiyuki Kikunaga ,  Hiroyuki Asano

IPC分类号： H01J23/075 ,  H01J23/10 ,  H01J23/20 ,  H01J23/34 ,  H01J25/00 ,  H01J25/02 ,  H01J23/08

CPC分类号： H01J23/10 ,  H01J23/075 ,  H01J23/34 ,  H01J25/025

摘要： A gyrotron system comprises an electron gun that produces an electron beam, a magnetic field generating unit comprising a permanent magnet and two electromagnets and capable of generating an axial magnetic field that drives electrons emitted from the electron gun for revolving motion, a cavity resonator that causes cyclotron resonance maser interaction between the revolving electrons and a high-frequency electromagnetic field resonating in a natural mode, a collector for collecting the electron beam traveled through the cavity resonator, and an output window through which a high-frequency wave produced by the cyclotron resonance maser interaction propagates. The gyrotron system can be fabricated at a comparatively low cost, is easy to operate, has a comparatively small size and is capable of operating at a comparatively low running cost.

摘要翻译： 陀螺仪系统包括产生电子束的电子枪，包括永磁体和两个电磁体的磁场产生单元，并且能产生驱动电子枪发射的电子的旋转运动的轴向磁场，引起 旋转电子之间的回旋共振与激光器之间的相互作用以及以自然模式谐振的高频电磁场，用于收集通过空腔谐振器行进的电子束的集电体和通过回旋共振产生的高频波的输出窗 maser互动传播。 陀螺仪系统可以以相对低的成本制造，易于操作，具有相对小的尺寸并且能够以较低的运行成本运行。

公开(公告)号：US5604402A

公开(公告)日：1997-02-18

申请号：US381138

申请日：1995-01-31

申请人： Robert S. Symons

发明人： Robert S. Symons

IPC分类号： H01J23/40 ,  H01J25/02 ,  H01J25/38 ,  H01J25/00

CPC分类号： H01J25/38 ,  H01J23/40 ,  H01J25/025

摘要： A harmonic gyro-TWT is provided that has only one possible mode of operation. The harmonic gyro-TWT comprises a waveguide and an electron beam projected through the waveguide and encircling an axis of the waveguide. A plurality of evenly spaced electrical conductors are disposed within the waveguide parallel to the axis and spaced a fixed distance from an inner wall of the waveguide. The electrical conductors are connected together at an end of the waveguide. The electrical conductors are excited in phase with an AC signal connected between the electrical conductors and the inner wall of the waveguide. As a result, a multipole field having an order equal to twice the number of electrical conductors is defined within the waveguide. A plurality of support rails couple the inside surface of the waveguide to each respective one of the plurality of electrical conductors. The distance between adjacent ones of the support rails is approximately equal to 1/4 of a wavelength of a center frequency of a desired passband of the harmonic gyro-TWT, and the distance between the inner wall of the waveguide and the electrical conductors along a respective one of the support rails is approximately equal to 1/4 of a wavelength of a center frequency of a desired passband of the harmonic gyro-TWT.

摘要翻译： 提供了仅具有一种可能的操作模式的谐波陀螺仪TWT。 谐波陀螺TWT包括波导和通过波导投影并围绕波导的轴的电子束。 多个均匀间隔的导电体平行于轴线布置在波导内，并且与波导的内壁间隔一定距离。 电导体在波导的端部连接在一起。 电导体与连接在电导体和波导的内壁之间的AC信号同相激励。 结果，在波导内限定具有等于电导体数量的两倍的多极场。 多个支撑轨将波导的内表面连接到多个电导体中的每一个。 相邻的支撑轨道之间的距离大致等于谐波陀螺仪TWT的期望通带的中心频率的波长的+ E，fra 1/4 + EE，以及波导的内壁之间的距离 并且沿着相应的一个支撑轨道的电导体近似等于谐波陀螺仪TWT的期望通带的中心频率的波长的+ E，fra 1/4 + EE。

公开(公告)号：US5187408A

公开(公告)日：1993-02-16

申请号：US636731

申请日：1991-01-02

申请人： Bernd Jodicke ,  Hans-Gunter Mathews

发明人： Bernd Jodicke ,  Hans-Gunter Mathews

IPC分类号： H01J25/00 ,  H01J23/30 ,  H01J25/02 ,  H01P3/20

CPC分类号： H01J25/025 ,  H01J23/30 ,  H01P3/20

摘要： A quasi-optical component for microwave radiation comprises a quasi-optical element (16a) which radiates incident microwave radiation along a major axis (19) and which has a characteristic transverse dimension (D) which is smaller than 50-times one wavelength. It is distinguished by the fact that a cooled absorption device (17) is provided which is arranged closely in front of the quasi-optical element (16a) in such a manner that at least one high-power secondary peak (20) of the diffraction due to the characteristic transverse dimension is destroyed.

摘要翻译： 用于微波辐射的准光学部件包括：准光学元件（16a），其沿着长轴（19）辐射入射的微波辐射，并且具有小于50倍一个波长的特征横向尺寸（D）。 其特征在于，提供冷却的吸收装置（17），其被布置在准光学元件（16a）的前方，使得至少一个衍射的大功率二次峰（20） 由于特征横向尺寸被破坏。

公开(公告)号：US5134342A

公开(公告)日：1992-07-28

申请号：US553606

申请日：1990-07-18

申请人： Bernd Jodicke ,  Hans-Gunter Mathews

发明人： Bernd Jodicke ,  Hans-Gunter Mathews

IPC分类号： H01J25/00 ,  H01J25/02 ,  H01J25/10 ,  H01S3/08

CPC分类号： H01S3/08068 ,  H01J25/025

摘要： In a quasi-optical gyrotron which exhibits a quasi-optical resonator having two mirrors (4a, 4b) which opposite one another on a resonator axis (5), the required electromagnetic radiation is coupled out by means of a hologram. In this arrangement, at least one of the two mirrors (4b) of the resonator exhibits a reflective surface (8b) provided with a hologram. The hologram is constructed in such a manner that the radiation to be coupled out is scattered in the direction of at least exactly one coupling-out axis (10), the at least exactly one coupling-out axis (10) enclosing a predetermined angle .alpha. not equal to zero with the resonator axis (5). The angle .alpha. is preferably as small as possible.

摘要翻译： 在具有在谐振器轴（5）上彼此相对的两个反射镜（4a，4b）的准光学谐振器的准光学陀螺仪中，所需的电磁辐射通过全息图耦合出来。 在这种布置中，谐振器的两个反射镜（4b）中的至少一个具有设置有全息图的反射表面（8b）。 全息图被构造成使得要耦合的辐射在至少恰好一个耦合输出轴线（10）的方向上散射，至少恰好一个包围预定角度α的耦合输出轴线（10） 谐振器轴（5）不等于零。 角度α优选尽可能小。

公开(公告)号：US4559475A

公开(公告)日：1985-12-17

申请号：US630049

申请日：1984-07-12

申请人： Wallace Manheimer ,  Baruch Levush

发明人： Wallace Manheimer ,  Baruch Levush

IPC分类号： H01J25/02 ,  H01J25/00

CPC分类号： H01J25/025 ,  Y10S505/88

摘要： A method and apparatus for suppressing lower order cyclotron harmonics in order to permit resonance within a quasi-optical gyrotron/gyroklystron configuration of a desired higher order harmonic. In the gyrotron/gyroklystron configuration at least one open resonator defined by at least two mirrors is positioned downstream from an electron beam source for receiving therethrough the beam of electrons and for exchanging energy therewith. This method includes the steps of choosing a mirror radius size .rho. for the mirrors forming the at least one open resonator which is large enough relative to the spot size of a desired radiation cyclotron harmonic .omega..sub.n so that the harmonic .omega..sub.n oscillates within the at least one resonator, but small enough so that the spot size for the next lower cyclotron harmonic .omega..sub.m is larger than the mirror so that the harmonic .omega..sub.m does not oscillate due to diffraction losses. This method further includes the step of generating an electron beam via the electron beam source with a beam current which is greater than or equal to the starting current I.sub.n for the desired nth cyclotron harmonic, but less than the starting current I.sub.m for the mth cyclotron harmonic. The method also includes the step of extracting radiation energy at the nth cyclotron harmonic from the at least one open resonator. The desired mirror radius size .rho. for a given cyclotron harmonic frequency .omega..sub.n, for a desired diffraction loss Y.sub.n for that harmonic n, a given half length separation L.sub.y between the mirrors, and a given radius of curvature R.sub.M, can be determined by the equation ##EQU1## wherein r.sub.on is the spot size at the mirror for radiation at the nth cyclotron harmonic.

摘要翻译： 一种用于抑制较低阶回旋加速器谐波的方法和装置，以便允许在期望的更高阶谐波的准光学陀螺仪/陀螺仪中配置中的谐振。 在陀螺仪/陀螺仪配置中，由至少两个反射镜限定的至少一个开放谐振器位于电子束源的下游，用于从其中接收电子束并与其交换能量。 该方法包括以下步骤：为形成至少一个开放谐振器的反射镜选择反射镜半径尺寸rho，其相对于期望的辐射回旋加速器谐波ωn的光点尺寸足够大，使得谐波ωn在至少振荡 一个谐振器，但足够小，使得下一个下回旋加速器谐波ωm的光斑尺寸大于镜面，使得谐波ωm不会由于衍射损耗而振荡。 该方法还包括通过电子束源产生电子束的步骤，该电流束具有大于或等于所需第n个回旋加和谐波的起始电流In的射束电流，但小于第m个回旋加速器谐波的起始电流Im 。 该方法还包括从至少一个开放谐振器提取第n回旋加速器谐波的辐射能量的步骤。 对于所述谐波n的期望的衍射损耗Yn，反射镜之间的给定半长分离Ly和给定的曲率半径RM，对于给定的回旋加速器谐波频率ωn，所需的反射镜半径尺寸rho可以由等式 （1）其中ron是在第n回旋加速器谐波处的辐射镜处的光点大小。

公开(公告)号：US4480234A

公开(公告)日：1984-10-30

申请号：US303604

申请日：1981-09-18

申请人： Jonathan M. Wachtel

发明人： Jonathan M. Wachtel

IPC分类号： H01J25/02 ,  H01J25/46 ,  H01J25/00

CPC分类号： H01J25/025

摘要： A gyrotron backward wave oscillator device is described which can be operated in a controlled and predictable manner. The device includes an evacuated waveguide section, an electron source at one end providing a spiral electron beam, a collector at the opposite end, means for producing a magnetic field parallel to the longitudinal axis of the waveguide section, and an output window, the parameters of the device being such as to support backward wave oscillation therein and to output same through the window.

摘要翻译： 描述了可以以受控和可预测的方式操作的陀螺仪反向波振荡器装置。 该装置包括抽真空的波导部分，一端的电子源提供螺旋电子束，在相对端的集电极，用于产生平行于波导部分的纵向轴线的磁场的装置，以及输出窗口 该装置能够支持其中的反向波振荡并且通过窗口输出。

公开(公告)号：US20160148773A1

公开(公告)日：2016-05-26

申请号：US14903602

申请日：2014-08-11

申请人： ARIEL - UNIVERSITY RESEARCH AND DEVELOPMENT COMPANY, LTD.

发明人： Moshe EINAT

IPC分类号： H01J1/30 ,  H01J29/04 ,  H01J23/06

CPC分类号： H01J1/30 ,  H01J23/06 ,  H01J25/025 ,  H01J29/04 ,  H01J2201/306

摘要： Disclosed are methods and devices suitable for generating electron beams and pulses of radiation. Specifically, in some disclosed embodiments, multiple emitting electrodes of a ferroelectric emitter are sequentially activated, generating a relatively long electron beam pulse that is substantially a series of substantially consecutive short electron beam pulses generated by the sequentially-activated individual emitting electrodes.

摘要翻译： 公开了适于产生电子束和辐射脉冲的方法和装置。 具体来说，在一些公开的实施例中，铁电发射器的多个发射电极被顺序地激活，产生相对较长的电子束脉冲，其基本上是由顺序激活的单个发射电极产生的基本上连续的短电子束脉冲串。