公开(公告)号：US06465958B1

公开(公告)日：2002-10-15

申请号：US09555012

申请日：2000-07-24

申请人： David Mark Wilcox ,  Darrin Bowler

发明人： David Mark Wilcox ,  Darrin Bowler

IPC分类号： H01J2510

CPC分类号： H01J25/02 ,  H01J23/20

摘要： An electron beam tube such as a klystron includes a penultimate resonant cavity (22) located before the output cavity (14). The penultimate resonant cavity (22) is arranged to be inductively coupled, being resonant at a frequency which is slightly greater than a harmonic frequency. This provides increased sharpening of bunches of electrons arriving at the output cavity (14) giving increased efficiency at the output.

摘要翻译： 诸如速调管的电子束管包括位于输出腔（14）之前的倒数第二个谐振腔（22）。 倒数第二个谐振腔（22）被布置成电感耦合，以稍微大于谐波频率的频率谐振。 这提高了到达输出腔（14）的电子束的增加的锐化，从而在输出端提供更高的效率。

公开(公告)号：US06326730B1

公开(公告)日：2001-12-04

申请号：US09193644

申请日：1998-11-16

申请人： Robert Spencer Symons

发明人： Robert Spencer Symons

IPC分类号： H01J2510

CPC分类号： H01J25/10

摘要： A low-power wide-bandwidth klystron comprises a cathode having an electron emitting surface capable of emitting an electron beam and a collector spaced from said cathode and designed to collect the electron beam emitted from the cathode. An anode is disposed between the cathode and the collector in order to channel the electron beam into a series of drift tubes that define the electron beam path between the anode and the collector. The drift tubes define gaps in which the input cavity and output cavity interact with the electron beam. The input cavity velocity modulates the electron beam by way of a radio frequency input signal and the output cavity extracts the amplified radio frequency signal from the electron beam. The drift tubes may define additional gaps between the input cavity and output cavity for intermediate cavities that would provide additional amplification. A voltage potential, positive with respect to the cathode voltage potential, is applied to the anode in order to draw the electron beam from the emitting surface of the cathode and into the drift tubes. The anode voltage potential is much larger than required for the desired output power. The output cavity is overloaded by providing it with a load conductance that is at least twice that required for optimal klystron power output. A voltage potential, positive with respect to the cathode voltage potential, is applied to the collector, but the voltage potential difference between the cathode and the collector may be at most one half of a corresponding voltage potential difference between the cathode and the anode.

摘要翻译： 低功率宽带速调管包括具有能够发射电子束的电子发射表面的阴极和与所述阴极隔开的集电体，并设计成收集从阴极发射的电子束。 阳极设置在阴极和收集器之间，以便将电子束传送到一系列漂移管中，该漂移管限定了阳极和收集器之间的电子束路径。 漂移管限定了输入腔和输出腔与电子束相互作用的间隙。 输入腔速度通过射频输入信号调制电子束，输出腔从电子束中提取放大的射频信号。 漂移管可以在输入腔和输出腔之间形成额外的间隙，用于提供额外放大的中间腔。 将相对于阴极电压电位为正的电压电位施加到阳极，以便从阴极的发射表面吸引电子束并进入漂移管。 阳极电压电位远大于所需输出功率所需的电压。 输出腔通过为其提供至少为最佳速调管功率输出所需的两倍的负载电导而过载。 对集电极施加相对于阴极电压电位为正的电压电位，但是阴极和集电极之间的电压电位差可以是阴极和阳极之间的相应电压电位差的至多一半。

公开(公告)号：US06246172B1

公开(公告)日：2001-06-12

申请号：US09379804

申请日：1999-08-24

申请人： Yoshio Bizen ,  Jun Sunakawa ,  Shunsuke Arakawa

发明人： Yoshio Bizen ,  Jun Sunakawa ,  Shunsuke Arakawa

IPC分类号： H01J2510

CPC分类号： H01F41/0226 ,  H01F1/15333 ,  H05H7/04

摘要： There is provided a high-performance magnetic core with a high &mgr;′Qf-value for an RF accelerating. The strip wound magnetic core has a thin strip of nanocrystalline soft magnetic alloy, whose bcc solid solution with an average grain size less than 100 nm has a volume fraction more than 50% of the whole structure of the alloy, and around which an interlayer insulation film at least on one side thereof. A gap is formed in at least a part of a magnetic path of the magnetic core. Stack cores formed by arranging in series a plurality of the magnetic cores are oppositely installed via a high-voltage gap, making it possible to provide an excellent RF accelerating cavity.

摘要翻译： 提供了用于RF加速的具有高mu'Qf值的高性能磁芯。 带状磁芯具有薄的纳米晶软磁合金条，其平均粒径小于100nm的bcc固溶体的体积分数大于整个合金结构的50％，并且其周围有层间绝缘 至少在其一面胶片。 在磁芯的磁路的至少一部分上形成间隙。 通过串联布置多个磁芯而形成的堆叠芯通过高压间隙相反地安装，使得可以提供优异的RF加速腔。

公开(公告)号：US06657391B2

公开(公告)日：2003-12-02

申请号：US10072768

申请日：2002-02-07

申请人： Xiaodong Ding ,  Chong Yao

发明人： Xiaodong Ding ,  Chong Yao

IPC分类号： H01J2510

CPC分类号： H05H7/18

摘要： A cavity for use in an accelerator is formed by an inner wall including at least two different materials. According to embodiments of the present invention, a portion of the structure forming the inner wall of the cavity includes a first material (e.g., copper) while another portion forming the inner wall of the cavity includes a second material (e.g., steel). Using different materials for different portions of the inner walls forming a cavity may cause different Q-factors for the cavity while the shape of the cavity remains constant.

摘要翻译： 用于加速器的空腔由包括至少两种不同材料的内壁形成。 根据本发明的实施例，形成空腔内壁的结构的一部分包括第一材料（例如铜），而形成空腔内壁的另一部分包括第二材料（例如钢）。 使用形成空腔的内壁的不同部分的不同材料可能导致腔的不同Q因子，而空腔的形状保持恒定。

公开(公告)号：US06653640B2

公开(公告)日：2003-11-25

申请号：US10020264

申请日：2001-12-18

申请人： Victor V. Kulish ,  Alexandra C. Melnyk

发明人： Victor V. Kulish ,  Alexandra C. Melnyk

IPC分类号： H01J2510

CPC分类号： H05H7/00 ,  H05H9/00

摘要： A linear induction accelerator, comprised of an injector block, acceleration block, the outlet device, and a drive source. The acceleration block is made from not less than two electrodynamically bound acceleration blocks of the single-channel linear induction accelerators, which are mutually oriented in such way that the direction of the electric field in any of the working channel is opposite to the electric field direction at least in one of the neighboring single-channel blocks of the single-channel linear induction accelerators. The invention allows a decrease of the real dimensions of the accelerator structure, increase of the electromagnetic compatibility level, technology and user safety, and a simplification of structure.

公开(公告)号：US06646383B2

公开(公告)日：2003-11-11

申请号：US09809792

申请日：2001-03-15

申请人： Kirk Joseph Bertsche ,  Chong-Guo Yao

发明人： Kirk Joseph Bertsche ,  Chong-Guo Yao

IPC分类号： H01J2510

CPC分类号： H05H7/22 ,  H05H7/18

摘要： A device for use in a linear accelerator operable to accelerate charged particles along a beam axis is disclosed. The device includes a plurality of monolithic members connected to form a series of accelerating cavities aligned along the beam axis and coupling cavities. Each of the coupling cavities intersects with adjacent accelerating cavities at first and second coupling apertures. The first and second coupling apertures have different sizes.

公开(公告)号：US06366021B1

公开(公告)日：2002-04-02

申请号：US09479466

申请日：2000-01-06

申请人： Gard E. Meddaugh ,  Gregory Kalkanis

发明人： Gard E. Meddaugh ,  Gregory Kalkanis

IPC分类号： H01J2510

CPC分类号： H05H7/18 ,  H01J2223/20 ,  H05H9/04

摘要： A standing wave particle beam accelerator in which the electric fields in one side coupling cavity are switched by inserting two probes of selected diameter to provide different upstream and downstream electric field coupling to adjacent coupled accelerator cavities.

摘要翻译： 一种驻波粒子束加速器，其中通过插入两个选定直径的探针来切换一侧耦合腔中的电场，以提供不同的上游和下游电场耦合到相邻耦合的加速器腔。

公开(公告)号：US06768267B2

公开(公告)日：2004-07-27

申请号：US10253605

申请日：2002-09-25

申请人： Woo-seok Huh ,  Min-cheol Bae

发明人： Woo-seok Huh ,  Min-cheol Bae

IPC分类号： H01J2510

CPC分类号： H01J29/485 ,  H01J2229/4841 ,  H01J2229/4844

摘要： A cathode ray tube (CRT) has an electron gun including a cathode for emitting electron beams, a control electrode for controlling emission of the electron beams from the cathode, and a screen electrode for accelerating the flow of the electron beams passing the control electrode are arranged in series. In the CRT, during a scanning period, a voltage applied to at least one of the control electrode and the screen electrode changes in response to a voltage of a data signal applied to the cathode. The control electrode and screen electrode each include three mutually electrically insulated sections for independently controlling each of three electron beams passing through the electrodes.

摘要翻译： 阴极射线管（CRT）具有包括用于发射电子束的阴极的电子枪，用于控制来自阴极的电子束发射的控制电极和用于加速通过控制电极的电子束流动的屏幕电极 串联排列。 在CRT中，在扫描期间，施加到控制电极和屏幕电极中的至少一个的电压响应于施加到阴极的数据信号的电压而改变。 控制电极和屏幕电极各自包括三个相互电绝缘的部分，用于独立地控制通过电极的三个电子束中的每一个。

公开(公告)号：US06710557B1

公开(公告)日：2004-03-23

申请号：US10049352

申请日：2002-02-05

申请人： John Allen ,  Leonard Knowles Brundle ,  Terry Arthur Large ,  Terence Bates

发明人： John Allen ,  Leonard Knowles Brundle ,  Terry Arthur Large ,  Terence Bates

IPC分类号： H01J2510

CPC分类号： H05H9/04 ,  H05H7/18

摘要： An accelerator comprises a plurality of accelerating cells arranged to convey a beam, adjacent cells being linked by a coupling cell, the coupling cells being arranged to dictate the ratio of electric field in the respective adjacent accelerating cells, at least one coupling cell being switchable between a positive ratio and a negative ratio. Such an accelerator in effect inserts a phase change into the E field by imposing a negative ratio, meaning that the beam will meet a reversed electric field in subsequent cells and will in fact be decelerated. As a result, the beam can be developed and bunched in early cells while accelerating to and/or at relativistic energies, and then bled of energy in later cells to bring the beam energy down to (say) between 100 and 300 KeV. Energies of this magnitude are comparable to diagnostic X-rays, where much higher contrast of bony structures exists. Hence the accelerator can be used to take kilovoltage portal images.

摘要翻译： 加速器包括多个加速单元，其被布置成传送波束，相邻单元由耦合单元链接，所述耦合单元布置成指示相应相邻加速单元中的电场的比率，至少一个耦合单元可在 正比率和负比率。 这样的加速器实际上通过施加负比率将相位插入到E场中，这意味着光束将在随后的单元中遇到反向的电场，并且实际上将被减速。 结果，可以在加速到和/或相对论能量的同时在早期的单元中显影和聚束光束，然后在稍后的单元中排出能量，以将光束能量降低到（例如）100和300KeV之间。 这种量级的能量与诊断X射线相当，骨骼结构的对比度高得多。 因此，加速器可用于采取千伏门户图像。

公开(公告)号：US06611103B2

公开(公告)日：2003-08-26

申请号：US10120549

申请日：2002-04-12

申请人： Fumiaki Murakami

发明人： Fumiaki Murakami

IPC分类号： H01J2510

CPC分类号： H01J29/48 ,  H01J2229/70

摘要： An electron gun assembly for a CRT includes three cathode electrodes, a control electrode, an electron-stream extractor electrode, a focusing electrode, and an anode electrode. The electron-stream extractor electrode includes first, second, and third holes, each of which allows one of the three streams of the electrons to pass through. The focusing electrode includes a flat portion having fourth, fifth, and sixth holes, each of which allows one of the three streams of the electrons to pass through. The first, second, and third holes are arranged in the in-line direction. Each of the fourth and sixth holes includes a substantially rectangular opening and a substantially semicircular opening connected to each other. One side of the substantially rectangular opening is connected to a straight line segment of the substantially semicircular opening, and the substantially rectangular opening is disposed outside while the substantially semicircular opening is disposed inside.