公开(公告)号：US2049287A

公开(公告)日：1936-07-28

申请号：US56073831

申请日：1931-09-02

Applicant: WESTINGHOUSE LAMP CO

Inventor： BLAKEMAN ARTHUR C

IPC: H01J35/02

CPC classification number: H01J35/02

公开(公告)号：US1937834A

公开(公告)日：1933-12-05

申请号：US5783625

申请日：1925-09-22

Applicant: WESTINGHOUSE LAMP CO

Inventor： MONTFORD MORRISON

IPC: H01J35/02

CPC classification number: H01J35/02

公开(公告)号：US1808430A

公开(公告)日：1931-06-02

申请号：US55956922

申请日：1922-05-09

Applicant: WESTINGHOUSE LAMP CO

Inventor： MONTFORD MORRISON

IPC: H01J35/02

CPC classification number: H01J35/02

公开(公告)号：US1665638A

公开(公告)日：1928-04-10

申请号：US5783525

申请日：1925-09-22

Applicant: MONTFORD MORRISON

Inventor： MONTFORD MORRISON

IPC: H01J35/02

CPC classification number: H01J35/02

公开(公告)号：US20240100367A1

公开(公告)日：2024-03-28

申请号：US18531741

申请日：2023-12-07

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Shuguang LIU ,  Cheng NI ,  Peng WANG ,  Jianfeng LIU ,  Jian ZHANG ,  Yuelin SHAO

IPC: A61N5/10 ,  A61B5/055

CPC classification number: A61N5/1081 ,  A61B5/055 ,  A61N5/1045 ,  A61N2005/1094 ,  H01J35/02

Abstract: A radiation therapy system may include a magnetic resonance imaging (MRI) device configured to acquire MRI data with respect to a region of interest (ROI). The MRI device may include a main magnet that is around a longitudinal axis and configured to generate a magnetic field. The MRI device may also include a radiation therapy device configured to perform a treatment on at least one portion of the ROI by delivering, based on the MRI data, therapeutic radiation to the at least one portion of the ROI. The radiation therapy device may be rotatable around the longitudinal axis. The MRI device may also include a first shielding structure configured to provide interference shielding for the MRI device or the radiation therapy device. The radiation therapy device may be rotatable relative to the first shielding structure around the longitudinal axis.

公开(公告)号：US20230343543A1

公开(公告)日：2023-10-26

申请号：US18310023

申请日：2023-05-01

Applicant: GE Precision Healthcare LLC

Inventor： Ian Strider Hunt ,  Andrew Thomas Cross

IPC: H01J35/02 ,  F16C17/10 ,  F16C33/10

CPC classification number: H01J35/02 ,  F16C17/102 ,  F16C33/1065

Abstract: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing encased within a bearing sleeve, one of which rotates relative to the other. The stationary component, e.g., the journal bearing and/or the thrust bearing includes at least one vent groove formed therein that improves the ability of the journal bearing structure to enable gases trapped by the liquid metal within the bearing assembly to escape through the vent groove to the exterior of the X-ray tube. By adding a strategically located channel or vent groove of sufficient size in at least one of the journal bearing or the thrust bearing, the pressures resisted by the seal created between the liquid metal and the vent groove(s) in the bearing components is significantly reduced, allowing escape of the gases to avoid detrimental effects to the operation of the X-ray tube, while maintaining the load carrying capacity of the bearing assembly.

公开(公告)号：US11650242B2

公开(公告)日：2023-05-16

申请号：US17305538

申请日：2021-07-09

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Siming Chen ,  Guoping Zhu ,  Jinglin Wu ,  Biao Luo ,  Xu Chu

IPC: G01R31/14 ,  G01R15/18 ,  G01R19/00 ,  H01J35/02

CPC classification number: G01R31/14 ,  G01R15/181 ,  G01R19/0092 ,  H01J35/02

Abstract: The present disclosure provides an arcing detection device. The arcing detection device may include a detection coil and a processing circuit operably connected to the detection coil. The detection coil may be configured to detect a current variation of a system. The processing circuit may be configured to determine information of an arcing event of the system based on the current variation of the system. The information of the arcing event of the system may include a position where the arcing event occurs in the system.

公开(公告)号：US20190239834A1

公开(公告)日：2019-08-08

申请号：US16269459

申请日：2019-02-06

Applicant: Illinois Tool Works Inc.

Inventor： Paul Benson ,  Brian Girouard ,  Amine Belarbi

IPC: A61B6/00 ,  H01J35/02 ,  G01T1/20

CPC classification number: G01T1/2002 ,  A61B6/06 ,  A61B6/107 ,  A61B6/4035 ,  A61B6/405 ,  A61B6/4405 ,  A61B6/4441 ,  A61B6/467 ,  A61B6/487 ,  A61B6/54 ,  G01T1/20 ,  G01T1/2018 ,  G01T1/24 ,  G21F1/085 ,  H01J35/02 ,  H04N5/321

Abstract: Systems and methods for digital X-ray imaging are disclosed. An example portable X-ray scanner includes: an X-ray detector configured to generate digital images based on incident X-ray radiation; an X-ray tube configured to output X-ray radiation; a computing device configured to control the X-ray tube, receive the digital images from the X-ray detector, and output the digital images to a display device; a power supply configured to provide power to the X-ray tube, the X-ray detector, and the computing device; and a frame configured to: hold the X-ray detector, the computing device, and the power supply; and hold the X-ray tube such that the X-ray tube directs the X-ray radiation to the X-ray detector.

公开(公告)号：US09991084B2

公开(公告)日：2018-06-05

申请号：US15652102

申请日：2017-07-17

Applicant: Tribogenics, Inc.

Inventor： Carlos G. Camara ,  Mark G. Valentine ,  Zachary J. Gamlieli ,  Benjamin A. Lucas ,  David M. Kamkar ,  Pedro Cortes, Jr. ,  Vasish Narayan M. ,  Gilberto Jimenez ,  Daniel E. Cuadra

IPC: H01J35/00 ,  H01J35/08 ,  H01J35/06 ,  H01J35/02 ,  H05G2/00 ,  H01J35/20 ,  H01J35/18

CPC classification number: H01J35/08 ,  H01J35/02 ,  H01J35/06 ,  H01J35/18 ,  H01J35/20 ,  H01J2235/186 ,  H05G2/00

Abstract: An x-ray device utilizes a band of material to exchange charge through tribocharging within a chamber maintained at low fluid pressure. The charge is utilized to generate x-rays within the housing, which may pass through a window of the housing. Various contact rods may be used as part of the tribocharging process.

公开(公告)号：US09953797B2

公开(公告)日：2018-04-24

申请号：US14867396

申请日：2015-09-28

Applicant: General Electric Company

Inventor： Xi Zhang ,  Mark Alan Frontera ,  Sergio Lemaitre ,  John Scott Price ,  Uwe Wiedmann

IPC: H01J35/02 ,  H01J35/06 ,  H01J35/16 ,  H01J9/04 ,  H01J1/16

CPC classification number: H01J35/06 ,  H01J1/16 ,  H01J9/042 ,  H01J35/02 ,  H01J35/32

Abstract: A flat emitter configured for use in an X-ray tube is presented. The X-ray tube includes a first conductive section including a first terminal. Further, the X-ray tube includes a second conductive section including a second terminal. Also, the X-ray tube includes a third conductive section disposed between the first conductive section and the second conductive section, wherein the third conductive section is configured to emit electrons toward a determined focal spot, and wherein the third conductive section includes a plurality of slits subdividing the third conductive section into a winding track coupled to the first conductive section and the second conductive section, wherein at least two of the plurality of slits are interwound spirally to compose the winding track, and wherein the winding track is configured to expand and contract based on heat provided to the third conductive section.