公开(公告)号：US6052434A

公开(公告)日：2000-04-18

申请号：US777369

申请日：1996-12-27

Applicant: Thomas L. Toth ,  Willi H. Hampel ,  Stephen W. Gravelle ,  Wayne F. Block

Inventor： Thomas L. Toth ,  Willi H. Hampel ,  Stephen W. Gravelle ,  Wayne F. Block

IPC: A61B6/03 ,  H01J35/10 ,  H01J35/08

CPC classification number: A61B6/032 ,  A61B6/4021 ,  H01J35/10

Abstract: An X-ray tube comprises an anode assembly having an associated anode and a cathode assembly for providing a focused electron beam directed to the anode. An anode target, associated with the anode assembly, accelerates the electron beam and produces X-rays upon electron impact with the anode target. Off-focal radiation tends to be most intensely emitted by the top surface of the target. In conventional X-ray tubes, the off-focal radiation as seen by the detector encompasses almost the entire top surface of the target assembly. In accordance with the present invention, the anode target comprises a cut-out top surface for reducing off-focal radiation, by blocking the off-focal radiation from the top surface from reaching the detector. Blocking the radiation produced at the top surface becomes more important as the ratio of the track area visible at the detector decreases with respect to the top surface area.

Abstract translation: X射线管包括具有相关阳极和阴极组件的阳极组件，用于提供指向阳极的聚焦电子束。 与阳极组件相关联的阳极靶加速电子束并在与阳极靶电子碰撞时产生X射线。 局部放射线趋于由靶的顶面最强烈地发射。 在常规的X射线管中，由检测器所看到的非焦距辐射几乎涵盖了目标组件的整个顶表面。 根据本发明，阳极靶包括用于通过阻挡来自顶表面的偏焦辐射到达检测器来减少焦点外辐射的切除顶表面。 阻挡在顶表面处产生的辐射变得更加重要，因为检测器处可见的轨道区域的比率相对于顶表面积降低。

公开(公告)号：US5940469A

公开(公告)日：1999-08-17

申请号：US937074

申请日：1997-09-24

Applicant: Erich Hell ,  Wolfgang Knuepfer ,  Peter Schardt

Inventor： Erich Hell ,  Wolfgang Knuepfer ,  Peter Schardt

IPC: G21K5/02 ,  G21K5/08 ,  H01J35/08 ,  H05G1/52 ,  H05H6/00 ,  G21K1/10

CPC classification number: H01J35/08 ,  H05G1/52 ,  H05H6/00

Abstract: A radiation source for generating multi-chromatic, particularly di-chromatic, x-radiation has at least one cathode and an anode for generating x-ray bremsstrahlung and a target surrounded by the cathode for converting the x-ray bremsstrahlung incident on the target into fluorescence radiation. The target is composed of different materials in sections and the sections can be selectively irradiated with the x-ray bremsstrahlung.

Abstract translation: 用于产生多色，特别是二色x射线的辐射源具有至少一个用于产生x射线bre致辐射的阴极和阳极，以及由阴极包围的靶，用于将入射到靶上的x射线bre致辐射转换为 荧光辐射。 目标由不同的部分材料组成，并且部分可以选择性地用x射线bre致辐射照射。

公开(公告)号：US5629970A

公开(公告)日：1997-05-13

申请号：US583916

申请日：1996-01-11

Applicant: David W. Woodruff ,  Robert D. Lillquist

Inventor： David W. Woodruff ,  Robert D. Lillquist

IPC: H01J35/10 ,  H01J35/08

CPC classification number: H01J35/105

Abstract: An x-ray tube target includes an annular disk having an outer surface including front and back opposite faces, and an annular focal track fixedly joined to the disk front face for producing x-rays. The disk outer surface is rough away from the focal track, with surface roughness pits having width and depth dimensions greater than a wavelength of peak radiant emission of the target at operating temperature for increasing emissivity of the target to increase thermal radiation cooling thereof.

Abstract translation: X射线管靶包括具有包括前后相对面的外表面的环形盘和固定地连接到盘前表面以产生x射线的环形焦轨。 磁盘外表面远离焦点轨迹，表面粗糙度凹坑的宽度和深度尺寸大于目标在工作温度下的峰值辐射发射波长，以增加目标的辐射率以增加其热辐射冷却。

公开(公告)号：US5515412A

公开(公告)日：1996-05-07

申请号：US251728

申请日：1994-05-31

Applicant: Yusuke Shida

Inventor： Yusuke Shida

IPC: H01J35/08 ,  C03C27/04 ,  H01J5/26 ,  H01J35/10 ,  H01J35/16 ,  H01J35/18 ,  H01J35/02

CPC classification number: H01J35/16 ,  C03C27/044 ,  H01J5/26

Abstract: A frit-sealed x-ray tube includes a glass bulb that supports metallic parts including an anode with a target and a beryllium window. Joint materials are provided of metal with thermal expansion coefficients that approximate the thermal expansion coefficient of the glass bulb. Frit materials having compositions of primarily zinc oxide and lead oxide are used and also have a thermal expansion coefficient that approximates the thermal expansion coefficients of the glass bulb and the joint materials. The frit materials allow a heat resistant and vacuum resistant welding between the glass bulb and the joint materials.

Abstract translation: 玻璃料密封的X射线管包括支撑包括具有目标的阳极和铍窗的金属部件的玻璃灯泡。 接头材料由金属制成，其热膨胀系数近似于玻璃泡的热膨胀系数。 使用具有主要为氧化锌和氧化铅的组成的玻璃料，并且还具有接近玻璃泡和接头材料的热膨胀系数的热膨胀系数。 玻璃料可以在玻璃泡和接头材料之间进行耐热和真空的焊接。

公开(公告)号：US5452720A

公开(公告)日：1995-09-26

申请号：US104338

申请日：1993-08-09

Applicant: Donald O. Smith ,  Alan P. Sliski ,  Kenneth J. Harte ,  Peter J. Biggs ,  John F. Beatty

Inventor： Donald O. Smith ,  Alan P. Sliski ,  Kenneth J. Harte ,  Peter J. Biggs ,  John F. Beatty

IPC: A61N5/10 ,  H01J35/08 ,  H01J35/30 ,  H01J35/32 ,  H05G1/06 ,  H05G1/10 ,  H05G1/32 ,  H05G1/34 ,  A61B6/12 ,  A61M36/00

CPC classification number: A61N5/1001 ,  H01J35/08 ,  H01J35/30 ,  H01J35/32 ,  H05G1/06 ,  H05G1/10 ,  H05G1/32 ,  H05G1/34 ,  A61N2005/1005 ,  H01J2201/342

Abstract: A method of treating brain tumors in a patient, comprising the steps of: identifying and locating a brain tumor in vivo by affixing a stereotactic frame to the head of the patient, performing a computer tomographic (CT) scan of the skull of the patient to determine the location, size, and shape of the tumor with respect to the stereotactic frame, performing a biopsy by inserting an extraction tool along a path measured with respect to the frame to the tumor location, extracting a tissue from the location, removing the needle and the extracted tissue and analyzing the tissue; implanting at least a portion of an adjustable x-ray radiation source in the patient proximate the tumor, the adjustable radiation source including an electron beam source outside the head of the patient, and directing an electron beam produced by the source outside the head of the patient along the path to the location; and controlling the source to generate an x-ray radiation pattern characterized by a spatial and temporal distribution, to selectively irradiate the tumor.

Abstract translation: 一种治疗患者脑肿瘤的方法，包括以下步骤：通过将立体定向框架固定在患者的头部来识别和定位脑肿瘤，对患者的头骨进行计算机断层扫描（CT）扫描 确定相对于立体定向框架的肿瘤的位置，大小和形状，通过沿着相对于框架测量的路径将提取工具插入到肿瘤位置进行活检，从该位置提取组织，移除针 和提取的组织并分析组织; 在靠近肿瘤的患者中植入至少一部分可调节X射线辐射源，所述可调节辐射源包括位于患者头部外部的电子束源，并且将源头产生的电子束引导到患者头部外部 患者沿着路径到位置; 并且控制源以产生以空间和时间分布为特征的X射线辐射图，以选择性地照射肿瘤。

公开(公告)号：US5428658A

公开(公告)日：1995-06-27

申请号：US184296

申请日：1994-01-21

Applicant: Peter E. Oettinger ,  Kenneth J. Harte

Inventor： Peter E. Oettinger ,  Kenneth J. Harte

IPC: A61B19/00 ,  A61N5/10 ,  H01B11/22 ,  H01J35/00 ,  H01J35/06 ,  H01J35/08 ,  H01J35/14 ,  H01J35/30 ,  H01J35/32 ,  H05G1/00 ,  H05G1/06 ,  H05G1/10 ,  H05G1/32 ,  H05G1/34

CPC classification number: A61N5/1001 ,  A61B90/11 ,  H01J35/065 ,  H01J35/08 ,  H01J35/30 ,  H01J35/32 ,  H05G1/06 ,  H05G1/10 ,  H05G1/32 ,  H05G1/34 ,  A61B2090/101 ,  A61N2005/1005 ,  H01J2201/342

Abstract: This invention is directed to an x-ray source comprising a power supply, a flexible fiber optic cable assembly, a light source, and a target assembly. The power supply includes a first terminal and a second terminal, and elements for establishing an output voltage between the first terminal and the second terminal. The flexible fiber optical cable assembly has an originating end and a terminating end, and includes a fiber optical element extending from the originating end to the terminating end. The cable is adapted for transmitting light incident on the originating end to the terminating end. The light source includes elements for generating a beam of light at and directed to the originating end of the fiber optical cable assembly. The target assembly is affixed to the terminating end of the fiber optical cable assembly and is electrically coupled to the power supply by way of the first terminal and the second terminal. The target assembly includes elements for emitting x-rays in a predetermined spectral range, in response to light transmitted to the terminating end.

Abstract translation: 本发明涉及一种包括电源，柔性光缆组件，光源和目标组件的x射线源。 电源包括第一端子和第二端子，以及用于在第一端子和第二端子之间建立输出电压的元件。 柔性光纤光缆组件具有起始端和终止端，并且包括从起始端延伸到终端的光纤元件。 电缆适用于将入射在起始端的光线发射到终端。 光源包括用于在光纤光缆组件的起始端处产生光束并被引导到光纤光缆组件的始端的元件。 目标组件固定到光纤光缆组件的终端，并通过第一终端和第二终端电耦合到电源。 目标组件包括响应于传输到终端的光在预定光谱范围内发射X射线的元件。

公开(公告)号：US5128977A

公开(公告)日：1992-07-07

申请号：US571705

申请日：1990-08-24

Applicant: Michael Danos

Inventor： Michael Danos

IPC: H01J35/08 ,  H01J35/16

CPC classification number: H01J35/16 ,  H01J35/08 ,  H01J2235/168

Abstract: An X-ray tube for greatly enhancing the output of photons relative to a standard tube includes a source of an electron beam focused on a target at an angle of approximately 10.degree. to produce high energy photons emitted at an angle along their centerline of 5.degree. to 15.degree., both angles referring to the surface of the target. Reduction of impurgement of scattered electrons on the tube window is affected in various ways such as use of a magnet to deflect electrons from the photon stream or locating the window out of alignment with the most intense scattered electrons. Scattered electrons are also absorbed by an essentially zero albedo shield disposed in the path of the majority of the scattered electrons not directed at the window.

Abstract translation: 用于大大增强光子相对于标准管的输出的X射线管包括以约10°的角度聚焦在目标上的电子束源，以产生沿其5°的中心线成一角度发射的高能光子 到15°，两个角度指的是目标的表面。 在管窗上减少散射电子的杂散受到各种方式的影响，例如使用磁体将电子从光子流偏转或使窗口与最强烈的散射电子不对准。 分散的电子也被布置在大多数不指向窗口的散射电子的路径中的基本为零的反照率屏蔽物吸收。

公开(公告)号：US4731805A

公开(公告)日：1988-03-15

申请号：US829650

申请日：1986-01-28

Applicant: Maiya F. Boyarina ,  Vladimir G. Vildgrube ,  Jury S. Sergeev ,  Oleg V. Filatov ,  Lev G. Andruschenko ,  Jury N. Zelenov ,  Valery N. Kupriyanov ,  Elena I. Taubkina

Inventor： Maiya F. Boyarina ,  Vladimir G. Vildgrube ,  Jury S. Sergeev ,  Oleg V. Filatov ,  Lev G. Andruschenko ,  Jury N. Zelenov ,  Valery N. Kupriyanov ,  Elena I. Taubkina

IPC: H01J35/10 ,  H01J35/08

CPC classification number: H01J35/105

Abstract: A rotary anode for an X-ray tube is in the form of a disc (1) the surface of which has, at least partially, a blackening coating (2). The latter is in the form of a sintered porous composition of titanium grains, mainly of the dendritic structure, of a size from 0.5 to 150 .mu.m, and at least one high-melting metal having a melting point above 2500.degree. C., the quantity the high-melting metal in the composition being from 5 to 60% by mass.

Abstract translation: PCT No.PCT / SU84 / 00030 Sec。 371日期1986年1月28日 102（e）日期1986年1月28日PCT Filed 1984年6月8日PCT公布。 出版物WO86 / 00171 日期：1986年1月3日。用于X射线管的旋转阳极是盘（1）的形式，其表面至少部分地具有黑化涂层（2）。 后者是大小为0.5-150μm的主要是树枝状结构的钛颗粒的烧结多孔组合物和至少一种熔点高于2500℃的高熔点金属， 所述组合物中的高熔点金属量为5〜60质量％。

公开(公告)号：US4658414A

公开(公告)日：1987-04-14

申请号：US514004

申请日：1983-07-15

Applicant: Ernst Geldner

Inventor： Ernst Geldner

IPC: F16C39/02 ,  F16C39/06 ,  H01J35/10 ,  H01J35/08

CPC classification number: F16C32/0442 ,  F16C39/02 ,  H01J35/103 ,  F16C2380/16

Abstract: A rotary anode X-ray tube has an anode connected at one end of a shaft which is magnetically mounted within the X-ray tube at its opposite end, the shaft simultaneously forming a rotor connected to a drive system for rotating the anode. The X-ray tube housing is formed by a number of connected components, two such components being spaced at opposite ends of the rotor, with the rotor extending therethrough, and each having stop bearings which are normally not in contact with the rotor, but which serve to limit movement of the rotor and the anode connected thereto, in the event of a malfunction in the magnetic mounting. Integration of the anode shaft and the drive rotor enable placement of the stop bearings at locations which minimize the lever action of the rotor-shaft-anode combination thereby significantly improving stability of the total assembly.

Abstract translation: 旋转阳极X射线管具有连接在轴的一端的阳极，该阳极在其相对端处磁性地安装在X射线管内，轴同时形成连接到用于旋转阳极的驱动系统的转子。 X射线管壳体由多个连接的部件形成，两个这样的部件在转子的相对端处间隔开，转子延伸穿过其中，并且每个具有通常不与转子接触的止动轴承，但是 用于在磁性安装故障的情况下限制转子和与其连接的阳极的移动。 阳极轴和驱动转子的集成使得止动轴承能够将转子 - 轴 - 阳极组合的杠杆作用最小化的位置放置在一起，从而显着提高了总组件的稳定性。

公开(公告)号：US4477921A

公开(公告)日：1984-10-16

申请号：US325286

申请日：1981-11-27

Applicant: Anthony J. Armini ,  Wallace S. Kreisman

Inventor： Anthony J. Armini ,  Wallace S. Kreisman

IPC: H01J35/00 ,  H01J35/08 ,  H01J35/12 ,  G21K5/00

CPC classification number: H01J35/08 ,  H01J35/00 ,  H01J35/12

Abstract: A composite target cone for use in an X-ray lithography source tube. The composite target cone is multi-layered, having at least an X-ray generating layer formed of platinum, silver, palladium, rhodium, molybdenum, tungsten, silicon, aluminum or copper, and a water-interface layer. The water-interface layer includes a layer of high thermal conductivity material, covered at one side by a layer of high corrosion resistance material and at the other side by a layer of high-melting point material.

Abstract translation: 用于X射线光刻源管的复合靶锥。 复合靶锥是多层的，至少具有由铂，银，钯，铑，钼，钨，硅，铝或铜形成的X射线产生层和水界面层。 水界面层包括一层高导热性材料，一层被一层高耐腐蚀材料覆盖，另一面被一层高熔点材料覆盖。