公开(公告)号：US20180261420A1

公开(公告)日：2018-09-13

申请号：US15912723

申请日：2018-03-06

Applicant: Siemens Healthcare GmbH

Inventor： Florian HOLCH ,  Kai-Uwe TAUBENREUTHER ,  Thomas WEIDINGER

IPC: H01J35/30 ,  H01J35/10 ,  H05G1/52 ,  H01J35/14

CPC classification number: H01J35/305 ,  H01J35/10 ,  H01J35/14 ,  H01J2235/10 ,  H05G1/52

Abstract: An X-ray emitter includes an anode rotatably mounted arranged inside a vacuum housing. It can be set into rotation by an electric drive. In the region of a focal spot, the anode can be exposed to an electron beam emitted by a cathode. According to an embodiment of the invention, a control unit is configured to activate an electromagnetic deflection unit that deflects the electron beam as a function of at least one operating parameter of the electric drive such that a movement of the focal spot, caused by electromagnetic fields of the electric drive, can be at least partly compensated for. An embodiment of the invention further relates to a method for compensating for a focal spot movement when X-ray emitters in operation.

公开(公告)号：US20150380200A1

公开(公告)日：2015-12-31

申请号：US14765391

申请日：2014-01-29

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Rolf Karl Otto BEHLING ,  Marcus Walter FOELLMER

IPC: H01J35/08

CPC classification number: H01J35/08 ,  G21K2207/005 ,  H01J35/12 ,  H01J35/24 ,  H01J2235/082 ,  H01J2235/086 ,  H01J2235/10

Abstract: The present invention relates to the generation of multiple X-ray beams (26). In order to provide a facilitated X-ray source with the capability of increased tube power for providing coherent radiation, for example in differential phase contrast imaging (DPCI), a multiple X-ray beam X-ray source (10) is provided with an anode structure (12) and a cathode structure (14). The anode structure comprises a plurality of liquid metal jets (16) providing a plurality of focal lines (18). The cathode structure provides an electron beam structure (20) that provides a sub e-beam (22) to each liquid metal jet. The liquid metal jets are each hit by the sub e-beam along an electron-impinging portion (24) of the circumferential surface that is smaller than half of the circumference.

Abstract translation: 本发明涉及多个X射线束（26）的产生。 为了提供具有增加管功率以提供相干辐射的能力的便利的X射线源，例如在差分相位对比成像（DPCI）中，多个X射线束X射线源（10）设置有 阳极结构（12）和阴极结构（14）。 阳极结构包括提供多个焦线（18）的多个液体金属喷嘴（16）。 阴极结构提供电子束结构（20），其向每个液态金属射流提供子电子束（22）。 液体金属射流分别沿圆周表面的电子冲击部分（24）被子电子束撞击，该部分小于圆周的一半。

公开(公告)号：US06487273B1

公开(公告)日：2002-11-26

申请号：US09989239

申请日：2001-11-20

Applicant: Jeff Takenaka ,  Scott Coles ,  Mark Lange ,  Karen Quinn ,  Christopher Artig ,  Jim Burke ,  Brian Carsten ,  Craig Smith

Inventor： Jeff Takenaka ,  Scott Coles ,  Mark Lange ,  Karen Quinn ,  Christopher Artig ,  Jim Burke ,  Brian Carsten ,  Craig Smith

IPC: H01J3510

CPC classification number: H05G1/06 ,  H01J35/16 ,  H01J2235/10 ,  H05G1/025

Abstract: The present invention is directed to a radiographic apparatus that utilizes a single integral housing for providing an evacuated envelope for an anode and cathode assembly. The integral housing provides sufficient radiation blocking and heat transfer characteristics such that an additional external housing is not required. The integral housing is air cooled, and thus does not utilize any coolant. In addition, the integral housing is insulated with a potting material, which electrically insulates the integral housing and its components, and also limits the amount of noise emitted from the housing during operation. In an alternative embodiment, enhanced thermal and electrically insulating properties are achieved through the use of a potting material disposed in selected areas of the tube interior. The potting material cooperates with optimized airflow through the tube assembly to effectively and continuously remove heat therefrom.

Abstract translation: 本发明涉及一种放射线照相设备，该放射照相设备利用单个整体式外壳来为阳极和阴极组件提供抽真空的外壳。 整体外壳提供足够的辐射阻挡和传热特性，使得不需要额外的外壳。 整体外壳是空气冷却的，因此不使用任何冷却液。 此外，一体式外壳用封装材料绝缘，该封装材料使整体外壳及其部件电绝缘，并且还限制了在操作期间从壳体发出的噪声量。 在替代实施例中，通过使用设置在管内部的选定区域中的灌封材料来实现增强的热和电绝缘性能。 灌封材料通过管组件与优化的气流协同工作，以有效且连续地从中除去热量。

公开(公告)号：US5812632A

公开(公告)日：1998-09-22

申请号：US937691

申请日：1997-09-29

Applicant: Peter Schardt ,  Erich Hell

Inventor： Peter Schardt ,  Erich Hell

IPC: H01J35/10 ,  H01J35/14 ,  H01J35/04

CPC classification number: H01J35/14 ,  H01J2235/10

Abstract: An x-ray tube has an evacuated housing in which an electron-emitting cathode is rigidly mounted and a rotating anode having an anode dish rotatable by a drive arrangement, which is struck by the electron beam, accelerated with an electrical field, for producing x-rays. An electromagnetic system for the deflection and focusing of the electron beam has a number of current-permeated coil elements. The cathode generates a rotationally-symmetrical circular beam, and the rotational axis of the anode dish is offset from and parallel to the axis of the electron beam by the average radius of the anode dish edge. The electromagnetic system generates a dipole-free quadrupole field that deforms the electron beam cross-section.

Abstract translation: X射线管具有抽真空的壳体，其中电子发射阴极刚性地安装，并且具有可由电子束撞击的驱动装置可旋转的阳极盘的旋转阳极用电场加速，以产生x 数字 用于电子束的偏转和聚焦的电磁系统具有多个电流渗透的线圈元件。 阴极产生旋转对称的圆形光束，并且阳极盘的旋转轴线偏离并平行于电子束轴的阳极盘边缘的平均半径。 电磁系统产生使电子束横截面变形的无偶极四极场。

公开(公告)号：US20240161996A1

公开(公告)日：2024-05-16

申请号：US17987505

申请日：2022-11-15

Applicant: GE Precision Healthcare LLC

Inventor： Carey Rogers ,  Vasile Bogdan Neculaes ,  Nidhishri Tapadia ,  Andrew Thomas Cross ,  Uwe Wiedmann

IPC: H01J35/10

CPC classification number: H01J35/103 ,  H01J2235/10

Abstract: Various methods and systems are provided for an x-ray imaging system. In one example, a method for decelerating a rotor of an x-ray tube of an imaging system includes controlling and/or monitoring a speed and position of the rotor, passing the rotor through a first position where a force exerted on the rotor, is less than Earth's gravitational pull, the force due to a combination of gravity and radial acceleration, and initiating a predefined deceleration profile to decelerate the rotor to a halt when the x-ray tube passes through the first position.

公开(公告)号：US06612478B2

公开(公告)日：2003-09-02

申请号：US09855555

申请日：2001-05-14

Applicant: David S. K. Lee ,  Richard R. Sano

Inventor： David S. K. Lee ,  Richard R. Sano

IPC: B23K2008

CPC classification number: H01J35/10 ,  B23K20/085 ,  H01J9/02 ,  H01J2235/10

Abstract: A method for manufacturing x-ray tube parts, wherein metallic pieces are explosively bonded together to establish a high strength, stable union between them. The x-ray tube parts may then be milled from the bonded metallic pieces. The explosion bonding process creates only discrete intermetallic components in the joint region instead of a continuous, weakening intermetallic layer common in brazed joints. An explosion bond joint is characterized by a wavelike interface, thereby increasing surface area over which the components are bonded and further increasing bond integrity. Stems, rotor hubs, rotor sleeves, anodes, and other tube components may be manufactured using this method.

Abstract translation: 一种制造X射线管部件的方法，其中金属片爆炸地结合在一起，以便在它们之间建立高强度，稳定的联合。 然后可以将X射线管部分从结合的金属片上研磨。 爆炸结合过程在接合区域中仅产生离散的金属间部件，而不是在钎焊接头中常见的连续弱化金属间层。 爆炸接头的特征在于波纹状界面，从而增加部件结合在一起的表面积，进一步提高粘结完整性。 阀杆，转子毂，转子套管，阳极和其他管部件可以使用这种方法制造。

公开(公告)号：US6091799A

公开(公告)日：2000-07-18

申请号：US119965

申请日：1998-07-21

Applicant: Roland Schmidt

Inventor： Roland Schmidt

IPC: H01J35/30

CPC classification number: H01J35/30 ,  H01J2235/10

Abstract: An X-ray tube with a cathode and an anode arranged in a vacuum housing has an electromagnet for deflecting the electron beam emanating from the cathode and proceeding to the anode, the electromagnet having a yoke with two legs connected to one another by a base section, with a winding surrounding the base section. The base section with the winding is located outside the vacuum housing. The legs of the yoke of the electromagnet extend into the vacuum housing so that the electron beam proceeds between the two legs.

Abstract translation: 具有布置在真空壳体中的阴极和阳极的X射线管具有用于偏转从阴极发射的电子束并且前进到阳极的电磁体，电磁体具有轭，其两个腿通过基部相互连接 围绕基部的绕组。 带有绕组的基座位于真空外壳的外部。 电磁铁的磁轭的腿部延伸到真空壳体中，使得电子束在两条腿之间进行。

公开(公告)号：US5795207A

公开(公告)日：1998-08-18

申请号：US551091

申请日：1995-10-31

Applicant: James A. Blake ,  Jamie E. Lazzaro ,  James R. Dobbs

Inventor： James A. Blake ,  Jamie E. Lazzaro ,  James R. Dobbs

IPC: H01J35/16 ,  H01J9/26 ,  H01J9/34

CPC classification number: H01J35/16 ,  H01J2235/10

Abstract: A method is used for interfacing dissimilar materials in an X-ray tube. The X-ray tube includes a rotor assembly to distribute heat generated in the X-ray tube. The X-ray tube is sealed within a glass material which has a first expansion coefficient. An interface is provided between the rotor assembly and the glass material to absorb temperature coefficient stresses. Preferably, the glass material is Borosilicate and the interface comprises a metal material and a ceramic material. The ceramic material has a second expansion coefficient that closely matches the first expansion coefficient. The metal material is preferably Kovar, and the ceramic material is preferably Mullite. Temperature coefficient stresses are then absorbed within the ceramic and metal structure.

Abstract translation: 一种用于在X射线管中接合不同材料的方法。 X射线管包括用于分配在X射线管中产生的热的转子组件。 X射线管被密封在具有第一膨胀系数的玻璃材料中。 在转子组件和玻璃材料之间提供界面以吸收温度系数应力。 优选地，玻璃材料是硼硅酸盐，并且界面包括金属材料和陶瓷材料。 陶瓷材料具有与第一膨胀系数紧密匹配的第二膨胀系数。 金属材料优选为Kovar，并且陶瓷材料优选为莫来石（Mullite）。 然后在陶瓷和金属结构内吸收温度系数应力。

公开(公告)号：US5581591A

公开(公告)日：1996-12-03

申请号：US345921

申请日：1994-11-28

Applicant: James E. Burke ,  Lester Miller ,  Salvatore Perno ,  Norman E. Wandke

Inventor： James E. Burke ,  Lester Miller ,  Salvatore Perno ,  Norman E. Wandke

IPC: H05G1/02 ,  H01J35/02 ,  H01J35/06 ,  H01J35/10 ,  H01J35/14 ,  H01J35/16 ,  H01J35/24 ,  H01J35/26 ,  H05G1/04 ,  H05G1/06 ,  H05G1/08 ,  H05G1/20 ,  H05G1/34 ,  H05G1/52 ,  H05G1/66 ,  H01J35/04

CPC classification number: H01J35/02 ,  H01J35/06 ,  H01J35/10 ,  H01J35/14 ,  H01J35/165 ,  H01J35/24 ,  H01J35/26 ,  H05G1/04 ,  H05G1/06 ,  H05G1/08 ,  H05G1/20 ,  H05G1/34 ,  H05G1/52 ,  H05G1/66 ,  H01J2235/10 ,  H01J2235/162 ,  H05G1/025

Abstract: An x-ray tube includes an anode (A) and an envelope (C). A cathode assembly (B) which is supported in the envelope on a bearing (32) emits a beam of electrons which strike the anode forming a focal spot. The anode rotates (D) relative to the cathode such that focal spot follows a generally annular path along a beveled track (14). If the axis of the anode and the cathode assembly are screwed or offset, the focal spot path is not circular and wobbles. An adjustment assembly (60) adjusts the relative positions of the anode, the cathode and the envelope to adjust the anode and cathode assembly axes. The adjustment assembly also includes one or more electrodes (102, 108) which adjust the position of the focal spot. An angular position encoder (106) identifies an angular orientation of the anode. A control circuit (110) applies an electrostatic potential to the electrodes to move the focal spot such that it stays on a constant plane of the leveled anode surface.

Abstract translation: X射线管包括阳极（A）和外壳（C）。 支撑在轴承（32）上的外壳中的阴极组件（B）发射撞击阳极的电子束，形成焦点。 阳极相对于阴极旋转（D），使得焦斑沿着斜面轨道（14）沿着大致环形路径。 如果阳极和阴极组件的轴线被拧紧或偏移，则焦点路径不是圆形并且摆动。 调节组件（60）调节阳极，阴极和外壳的相对位置以调节阳极和阴极组件的轴线。 调整组件还包括一个或多个调整焦点位置的电极（102,108）。 角位置编码器（106）识别阳极的角度取向。 控制电路（110）向电极施加静电电位以使焦点移动，使其保持在平整的阳极表面的恒定平面上。

公开(公告)号：US20100322385A1

公开(公告)日：2010-12-23

申请号：US12488398

申请日：2009-06-19

Applicant: Ricky B. Smith

Inventor： Ricky B. Smith

IPC: H01J35/00 ,  B21D53/10

CPC classification number: H01J35/10 ,  H01J35/26 ,  H01J2235/08 ,  H01J2235/10 ,  H01J2235/1093 ,  Y10T29/49636

Abstract: In one example embodiment, an x-ray tube comprises an anode configured to rotate at an operating frequency, and a bearing assembly configured to rotatably support the anode and tuned to a resonant frequency that is different than the operating frequency.

Abstract translation: 在一个示例性实施例中，X射线管包括被配置为以工作频率旋转的阳极和被配置为可旋转地支撑阳极并被调谐到不同于工作频率的谐振频率的轴承组件。