公开(公告)号：US20170148606A1

公开(公告)日：2017-05-25

申请号：US15299815

申请日：2016-10-21

Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATION

Inventor： Hiroshi HIRAYAMA

IPC: H01J35/02 ,  H01J35/10 ,  A61B6/03 ,  H01J35/06

CPC classification number: H01J35/025 ,  A61B6/032 ,  A61B6/06 ,  A61B6/4488 ,  H01J35/06 ,  H01J35/101 ,  H01J35/103 ,  H01J35/305 ,  H01J2235/1026

Abstract: A radiographic image diagnostic apparatus according to embodiments includes an X-ray tube, a holding member, and coil control circuitry. The X-ray tube includes: a cathode that emits electrons; coils that generate electromagnetic force; and an anode that rotates about a rotation axis in response to the electromagnetic force and to generate an X-ray by receiving the electrons. The holding member holds the X-ray tube so that the X-ray tube is movable. The coil control circuitry controls a current to be supplied to the coils based on at least one of a position of the X-ray tube, a direction of the X-ray tube, or a velocity of the X-ray tube.

公开(公告)号：US20150170870A1

公开(公告)日：2015-06-18

申请号：US14413638

申请日：2013-04-24

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Zeljko Jajtic ,  Thomas Weidinger

IPC: H01J35/10

CPC classification number: H01J35/103 ,  H01J35/101 ,  H01J2235/1026 ,  H01J2235/1073

Abstract: The embodiments relate to a rotary anode arrangement with a rotary anode, a rotor for driving the rotary anode and a stator, which exerts a torque on the rotor. The stator includes at least one coil for generating a first magnetic field and at least one permanent magnet for generating a second magnetic field. The embodiments also relate to an X-ray tube with the rotary anode arrangement. The embodiments offer the advantage that a high electromagnetic utilization is possible with a synchronous motor that is excited by permanent magnets.

Abstract translation: 实施例涉及具有旋转阳极的旋转阳极装置，用于驱动旋转阳极的转子和在转子上施加转矩的定子。 定子包括用于产生第一磁场的至少一个线圈和用于产生第二磁场的至少一个永磁体。 这些实施例还涉及具有旋转阳极装置的X射线管。 这些实施例提供的优点是，利用由永磁体激励的同步电动机可以实现高的电磁利用。

公开(公告)号：US08259905B2

公开(公告)日：2012-09-04

申请号：US12805289

申请日：2010-07-22

Applicant: Jihad Hassan Al-Sadah ,  Nabil Maalej ,  Ezzat Abbas Mansour

Inventor： Jihad Hassan Al-Sadah ,  Nabil Maalej ,  Ezzat Abbas Mansour

IPC: H01J35/08

CPC classification number: H01J35/26 ,  H01J35/08 ,  H01J35/28 ,  H01J2235/088 ,  H01J2235/1006 ,  H01J2235/1026

Abstract: The X-ray tube having a rotating and linearly translating anode includes an evacuated shell having a substantially cylindrical anode rotatably mounted therein. The substantially cylindrical anode may be rotated through the usage of any suitable rotational drive, and the substantially cylindrical anode is further selectively and controllably linearly translatable about the rotating longitudinal axis thereof. A cathode is further mounted within the evacuated shell for producing an electron beam that impinges on an outer surface of the substantially cylindrical anode, thus forming a focal spot thereon. X-rays are generated from the focal spot and are transmitted through an X-ray permeable window formed in the evacuated shell.

Abstract translation: 具有旋转和线性平移阳极的X射线管包括具有可旋转地安装在其中的大致圆柱形阳极的抽真空壳体。 基本上圆柱形的阳极可以通过使用任何合适的旋转驱动器而旋转，并且基本上圆柱形的阳极进一步选择性地和可控制地围绕其旋转的纵向轴线直线平移。 阴极还被安装在抽真空的外壳内，用于产生撞击在大致圆柱形阳极的外表面上的电子束，从而在其上形成焦点。 X射线从焦点产生并通过形成在抽真空壳体中的X射线透过窗透射。

公开(公告)号：US08054943B2

公开(公告)日：2011-11-08

申请号：US12629936

申请日：2009-12-03

Applicant: Michael John Danyluk

Inventor： Michael John Danyluk

IPC: H01J35/00

CPC classification number: H01J35/101 ,  H01J2235/1026

Abstract: An x-ray tube includes a housing enclosing a vacuum chamber, a cathode positioned within the vacuum chamber configured to emit electrons, and an anode positioned within the vacuum chamber to receive the electrons emitted from the cathode and generate a beam of x-rays from the electrons. The x-ray tube also includes a magnetic coupler drive configured to rotate the anode, with the magnetic coupler drive having an inner rotor frame positioned within the vacuum chamber and an outer rotor frame positioned outside the vacuum chamber and adjacent the inner rotor frame. The magnetic coupler drive also includes an inner rotor magnet mounted to the inner rotor frame and an outer rotor magnet mounted to the outer rotor frame. The inner and outer rotor magnets interact to generate a magnetic field that transfers torque from the outer rotor to the inner rotor, thereby causing the inner rotor to rotate the anode.

Abstract translation: x射线管包括封闭真空室的外壳，位于配置成发射电子的真空室内的阴极和位于真空室内的阳极，用于接收从阴极发射的电子，并产生一束x射线 电子。 X射线管还包括被配置为旋转阳极的磁耦合器驱动器，其中磁耦合器驱动器具有位于真空室内的内转子框架，以及定位在真空室外部并且邻近内转子框架的外转子框架。 磁耦合器驱动器还包括安装到内转子框架的内转子磁体和安装到外转子架的外转子磁体。 内转子和外转子磁体相互作用以产生将转矩从外转子传递到内转子的磁场，从而使内转子转动阳极。

公开(公告)号：US20070183576A1

公开(公告)日：2007-08-09

申请号：US11343599

申请日：2006-01-31

Applicant: James Burke ,  Charles Chidester ,  Bruce Cain ,  Robert Treseder ,  James Boye ,  Ray Daly ,  Ricky Smith ,  Paul Christean

Inventor： James Burke ,  Charles Chidester ,  Bruce Cain ,  Robert Treseder ,  James Boye ,  Ray Daly ,  Ricky Smith ,  Paul Christean

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J2235/06 ,  H01J2235/1026 ,  H01J2235/1216

Abstract: A cathode assembly including certain features designed to protect the integrity of a filament contained therein is disclosed. In particular, the cathode assembly is configured to prevent damage to the filament should it inadvertently contact another portion of the cathode assembly. In an example embodiment, an x-ray tube incorporating features of the present invention is disclosed. The x-ray tube includes an evacuated enclosure containing a cathode assembly and an anode. The cathode assembly includes a head portion having a head surface. A slot is defined on the head surface and an electron-emitting filament is included in the slot. A protective surface is defined on the head surface proximate to a central portion of the filament. The protective surface in one embodiment is composed of tungsten and is configure to prevent fusing of the filament to the protective surface should the filament inadvertently contact the protective surface.

Abstract translation: 公开了一种阴极组件，其包括设计成保护其中所包含的细丝的完整性的某些特征。 特别地，阴极组件被构造成如果它不经意地接触阴极组件的另一部分，则防止对细丝的损坏。 在示例性实施例中，公开了包含本发明的特征的X射线管。 x射线管包括一个包含阴极组件和一个阳极的真空外壳。 阴极组件包括具有头表面的头部部分。 在头表面上限定狭缝，并且在槽中包括电子发射丝。 保护表面限定在靠近灯丝中心部分的头表面上。 一个实施例中的保护表面由钨组成，并且被配置为当灯丝不经意地接触保护表面时防止灯丝熔合到保护表面。

公开(公告)号：US5773909A

公开(公告)日：1998-06-30

申请号：US730778

申请日：1996-10-16

Applicant: Steven D. Hansen ,  James A. Blake

Inventor： Steven D. Hansen ,  James A. Blake

IPC: H01J35/10 ,  H02K17/16 ,  H02K19/00

CPC classification number: H01J35/101 ,  H02K17/165 ,  H01J2235/1026

Abstract: An induction motor rotor particularly for x-ray tube applications comprises a series of hollow cylinders fitting concentrically on each other and on a motor shaft. The first cylinder is a highly heat resistant and electrically insulating material. The next cylinder is a highly magnetic material cylinder fitting on the first cylinder. The next and outermost cylinder is an electrically conductive material providing the armature conductor of the induction motor rotor.

Abstract translation: 特别用于X射线管应用的感应电动机转子包括一系列相互同心并且在电动机轴上的中空圆筒。 第一个气缸是高度耐热和电绝缘的材料。 下一个气缸是在第一气缸上安装的高磁性材料气缸。 下一个和最外面的圆筒是提供感应电动机转子的电枢导体的导电材料。

公开(公告)号：US2141924A

公开(公告)日：1938-12-27

申请号：US17438837

申请日：1937-11-13

Applicant: GEN ELECTRIC

Inventor： MIDDEL HENDRIK D

IPC: H01J35/10

CPC classification number: H01J35/101 ,  H01J2235/1026

公开(公告)号：US1977275A

公开(公告)日：1934-10-16

申请号：US43558130

申请日：1930-03-13

Applicant: PHILIPS NV

Inventor： GILLES HOLST ,  ALBERT BOUWERS

IPC: H01J35/10 ,  H01J35/26

CPC classification number: H01J35/26 ,  H01J35/10 ,  H01J35/101 ,  H01J2235/1026 ,  H01J2235/1266

公开(公告)号：US11979972B2

公开(公告)日：2024-05-07

申请号：US17609655

申请日：2020-05-07

Applicant: Excillum AB

Inventor： Björn Hansson ,  Per Takman ,  Ulf Lundström ,  Tomi Tuohimaa

IPC: H05G2/00 ,  F04B15/02 ,  F04B17/03 ,  F04B17/04 ,  H01J35/08

CPC classification number: H05G2/006 ,  F04B15/02 ,  F04B17/03 ,  F04B17/04 ,  H01J35/112 ,  H01J2235/082 ,  H01J2235/1026

Abstract: A liquid metal jet X-ray source including an electromagnetic pump for pumping the liquid metal. The electromagnetic pump includes a core having a core diameter and an outer yoke with a thickness of at least 20% of the core diameter. Preferably, the thickness of the outer yoke is at least 20% of the core diameter plus 6% of a radial distance between an outside of the core and an inside of the yoke.

公开(公告)号：US20230369005A1

公开(公告)日：2023-11-16

申请号：US18316257

申请日：2023-05-12

Applicant: Beijing Institute of Technology

Inventor： Li XI ,  Kaiyuan XUE ,  Daining FANG

IPC: H01J35/10 ,  H01J35/06 ,  H01J35/14 ,  H01J35/20

CPC classification number: H01J35/106 ,  H01J35/101 ,  H01J35/066 ,  H01J35/147 ,  H01J35/20 ,  H01J2235/1026 ,  H01J2235/1275

Abstract: A rotary-transmission-target microfocus X-ray source and an X-ray generation method based on the rotary-transmission-target microfocus X-ray source are provided. The X-ray source comprises a chamber, and an electron beam system is installed in the chamber. The electron beam system is arranged on a same side as an anode target rotating shaft. A motor in a rotary anode target system drives an anode target to rotate through a bevel gear transmission device. The microstructure of a target is designed. An electron beam emitted by the electron beam system vertically bombards the metal target of the rotating anode target. A cooling system is configured to cool the anode target.