公开(公告)号：US20200013577A1

公开(公告)日：2020-01-09

申请号：US16030004

申请日：2018-07-09

Applicant: General Electric Company

Inventor： Ian Strider Hunt ,  Kevin Shane Kruse

IPC: H01J35/10 ,  F16C17/04 ,  F16C33/10

Abstract: A liquid metal or spiral groove bearing structure for an x-ray tube and associated process for manufacturing the bearing structure is provided in which journal bearing sleeve is formed with a number of structures thereon that function to dissipate heat transmitted to the sleeve during operation of the bearing assembly within the x-ray tube to minimize thermal deformation of the sleeve, thereby minimizing gap size alteration within the bearing assembly. The structures formed within the sleeve are slots disposed within the section of the sleeve in which the highest temperature gradients develop. The slots enable an increase in thermal conductance away from the sleeve while minimizing the stresses created from the deformation of the portion(s) of the sleeve between the slots.

公开(公告)号：US10413268B2

公开(公告)日：2019-09-17

申请号：US15054493

申请日：2016-02-26

Applicant: Carestream Health, Inc.

Inventor： Xiaohui Wang ,  David H. Foos ,  Michael D. Heath ,  Richard A. Simon ,  Eliot L. Siegel

IPC: A61B6/00 ,  H05G1/54 ,  H01J35/00 ,  A61B6/02 ,  H01J35/06 ,  H01J35/10 ,  A61B6/12

Abstract: An imaging system includes an x-ray assembly having one or more x-ray sources configured to be energized at multiple positions. A control program energizes the one or more x-ray sources in a programmed sequence and controls the timing of the sequence.

公开(公告)号：US20190237285A1

公开(公告)日：2019-08-01

申请号：US16254667

申请日：2019-01-23

Applicant: Siemens Healthcare GmbH

Inventor： Oliver HEUERMANN ,  Karin SOELDNER ,  Carsten VOSS

IPC: H01J35/10 ,  H02K3/28 ,  H02K1/14 ,  H02K1/16

Abstract: An X-ray arrangement includes a vacuum vessel, a rotating anode and a rotor of an electrical machine being non-rotatably interconnected rotatably mounted in the vacuum vessel, a stator being disposed in a region of the rotor, externally enclosing the vacuum vessel. The stator includes a laminated core which, viewed orthogonally to the axis of rotation, includes a yoke running around the axis of rotation and from which stator teeth extend onto the axis of rotation. A winding system is disposed in spaces between the stator teeth of the laminated stator core. The winding system includes windings, individual turns of the windings each being configured to respectively engage over a plurality of the stator teeth, and the stator being designed such that when identical phase voltages are applied to the individual phases of the winding system, the individual phases are each respectively configured to produce stray magnetic fields of identical magnitude.

公开(公告)号：US20190189386A1

公开(公告)日：2019-06-20

申请号：US15847047

申请日：2017-12-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Michael William Gorrilla

IPC: H01J35/10

Abstract: An x-ray device is presented. The x-ray device includes a cathode configured to emit an electron beam. Also, the x-ray device includes an anode configured to rotate about a longitudinal axis of the x-ray device and positioned to receive the emitted electron beam, where the anode includes a target element disposed on an anode surface of the anode and a track element embedded in the target element, where the track element is configured to generate x-rays in response to the emitted electron beam impinging on a focal spot on the track element, where at least a portion of the track element is configured to transition from a first phase to a second phase based on heat generated in at least a portion of the track element, and where at least the portion of the track element is configured to distribute the generated heat across the anode.

公开(公告)号：US10325749B2

公开(公告)日：2019-06-18

申请号：US14636230

申请日：2015-03-03

Applicant: ACERDE

Inventor： Guillaume Huot ,  Ariane Petitjean ,  Herve Poirel ,  Pierre-Olivier Robert

IPC: H01J9/50 ,  C23C16/02 ,  C23C16/06 ,  C23C16/56 ,  H01J35/10 ,  C23C10/02 ,  C23C10/28

Abstract: A process for repairing a damaged annular region of an anode configured to emit x-rays includes the step of machining the damaged annular region made of an initial target coating to a depth smaller than a thickness of the coating so as to leave behind a residual annular layer. An intermediate layer is then deposited on the residual annular layer. A repairing layer is then deposited on the intermediate layer. A heat treatment is then performed using an anneal which causes, by interdiffusion and formation of a solid solution, the material of the intermediate layer and the material of the residual annular layer to diffuse into each other and further cause the material of the intermediate layer and the material of the repairing layer diffuse into each other. As a result of this anneal the intermediate layer disappears.

公开(公告)号：US10283312B2

公开(公告)日：2019-05-07

申请号：US15251854

申请日：2016-08-30

Applicant: General Electric Company

Inventor： John James McCabe ,  Michael Scott Hebert ,  Ian Strider Hunt ,  Andrew Thomas Triscari ,  Kevin Shane Kruse ,  Alexander Thomas Ryan ,  Adolfo Delgado Marquez

IPC: H01J35/10

Abstract: An X-ray tube is provided. The X-ray tube includes a bearing configured to couple to an anode. The bearing includes a stationary member, a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube, and a support feature configured to minimize bending moment along a surface of the stationary member to reduce deflection of the stationary member relative to the rotary member due to radial loads during operation of the X-ray tube.

公开(公告)号：US20190074155A1

公开(公告)日：2019-03-07

申请号：US16116196

申请日：2018-08-29

Applicant: RIGAKU CORPORATION

Inventor： Masaaki YAMAKATA ,  Tomohiro CHAKI ,  Masaru KURIBAYASHI

IPC: H01J35/10

Abstract: An X-ray generator comprising a target for receiving electrons and generating X-rays, a separator for dividing an internal space of the target into a coolant inflow path and a coolant outflow path, a motor for rotating the target, and a coolant inflow path and a coolant outflow path for supplying a coolant to the coolant inflow path and recovering the coolant through the coolant outflow path, wherein the separator rotates in the same rotation direction as the target when the target rotates. In the X-ray generator in which a coolant inflow path and a coolant outflow path are provided by a separator inside a rotating target, reduced torque load and reduced vibration can be realized.

公开(公告)号：US20190057832A1

公开(公告)日：2019-02-21

申请号：US15679853

申请日：2017-08-17

Applicant: Bruker AXS, GmbH

Inventor： Roger D. DURST ,  Carsten MICHAELSEN ,  Paul RADCLIFFE ,  Jenss SCHMIDT-MAY

IPC: H01J35/08 ,  H01J35/10 ,  G03F7/36 ,  H01J35/12 ,  G03F7/16

Abstract: An analytical X-ray tube with an anode target material that emits characteristic X-rays in response to excitation by an electron beam may include any of several advantageous features. The target material is deposited on a diamond substrate layer, and a metal carbide intermediate layer may be provided between the target material and substrate that provides enhanced bonding therebetween. An interface layer may also be used that provides an acoustic impedance matching between the target material and the substrate. For a low thermal conductivity target material, a heat dissipation layer of a higher thermal conductivity material may also be included between the target material and substrate to enhance thermal transfer. The target material may have a thickness that corresponds to a maximum penetration depth of the electrons of the electron beam, and the structure may be such that a predetermined temperature range is maintained at the substrate interface.

公开(公告)号：US10170271B2

公开(公告)日：2019-01-01

申请号：US15502959

申请日：2015-08-18

Applicant: RIGAKU CORPORATION

Inventor： Tomohiro Chaki ,  Manabu Noguchi

IPC: H01J35/10 ,  H01J35/28 ,  H01J35/16

Abstract: Provided is an X-ray generator having: an anode that faces a cathode which generates electrons; a plurality of X-ray generation zones; a casing housing the cathode and the anode; an anode support body for supporting the anode; an air cylinder for producing advancing and retreating movement of the anode support body with respect to the casing; and a stopper device that halts the movement of the anode support body when the anode support body moves in a direction approaching the casing. The stopper device has a rotating plate equipped with a section that enters and exits from between the anode support body and the casing due to rotation, a motor for driving the same, and a plurality of stop members provided in a peripheral section of the rotating plate and having mutually different heights.

公开(公告)号：US20180343727A1

公开(公告)日：2018-11-29

申请号：US15987434

申请日：2018-05-23

Applicant: Canon Medical Systems Corporation

Inventor： Fumio ISHIYAMA

IPC: H05G1/18 ,  H01J35/10 ,  H05G1/56 ,  A61B6/00

Abstract: An X-ray diagnosis system comprises an inter-capacitor terminal, a first inter-switching-element terminal, a second inter-switching-element terminal, and a third inter-switching-element terminal, wherein the first inter-switching-element terminal, the second inter-switching-element terminal, and the third inter-switching-element terminal are configured to supply three-phase alternating current power, and the inter-capacitor terminal and two of the first inter-switching-element terminal, the second inter-switching-element terminal, and the third inter-switching-element terminal are configured to supply two-phase alternating current power.