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公开(公告)号：CA2709921A1
公开(公告)日：2009-07-09
申请号：CA2709921
申请日：2007-12-31
Applicant: GEN ELECTRIC
Inventor： AHLAWAT ANUPAM SINGH , PATURI PRASAD BALAJI NARASIMHA
IPC: H01J35/28
Abstract: A high flux X-ray tube anode target assembly (101). The assembly includes a support shaft (107) connected to a pivot assembly (109). The assembly further includes a movable anode target (105) having a target surface (106) disposed at one end of the support shaft. The target surface includes a single radius of curvature. The radius of curvature extends from a pivot point (110). The assembly also includes a drive member (119) operably arranged with respect to the support shaft to provide motion to the anode target. The assembly is configured to maintain a substantially fixed distance between the pivot point and the target surface.
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公开(公告)号：GB2381432B
公开(公告)日：2006-04-05
申请号：GB0220465
申请日：2002-09-03
Applicant: GE MED SYS GLOBAL TECH CO LLC
Inventor： BLIN PHILIPPE , PENNEC XAVIER LE , DAHAN FREDERIC
Abstract: An X-ray emission device and method for a radiology apparatus comprises a cathode and a rotating anode, the anode being provided with a roughly cylindrical surface. The device forms a beam of electrons that bombards a portion of the roughly cylindrical surface of the anode that constitutes the focal point of emission of the X-rays. The position of the focal point of the anode relative to a reference position is dynamically controlled.
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公开(公告)号：DE10319549B3
公开(公告)日：2004-12-23
申请号：DE10319549
申请日：2003-04-30
Applicant: SIEMENS AG
Inventor： ROTHER PETER
Abstract: Rotating anode X-ray tube has a transition part (7) for connecting a shaft (4) to a lid (2). The transition part is made from a material having a high temperature strength which is more than that of the lid or shaft.
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公开(公告)号：DE10320361B3
公开(公告)日：2004-12-16
申请号：DE10320361
申请日：2003-05-07
Applicant: SIEMENS AG
Inventor： FREUDENBERGER JOERG , SCHARDT PETER
Abstract: The X-ray tube (1), has a cathode and anode fixed relative to each other which forms the rotary driven vacuum tube (4) located in a coolant fluid-filled housing (13), at least one non-driven rotary guide body (8), coaxially between the vacuum tube and the housing, that rotates at an intermediate rotation frequency relative to the housing and the vacuum tube. The rotary guide body rotates the vacuum tube inside the coolant housing. An independent claim is also included for an X-ray radiator.
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公开(公告)号：DE10316089A1
公开(公告)日：2004-11-11
申请号：DE10316089
申请日：2003-04-08
Applicant: SIEMENS AG
Inventor： LENZ EBERHARD , ROTHER PETER
Abstract: High performance X-ray tube in which the connection between the anode plate (5) and its support part (6) is a form locking connection. The connection is designed so that if the anode is rotated the connection surfaces are only subjected to a pressure.
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Patent Agency Ranking
公开(公告)号：FR2803432B1
公开(公告)日：2002-06-14
申请号：FR9916772
申请日：1999-12-30
Applicant: THOMSON TUBES ELECTRONIQUES
Inventor： CLERC GUY
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公开(公告)号：AU8110801A
公开(公告)日：2002-02-25
申请号：AU8110801
申请日：2001-08-07
Applicant: VARIAN MED SYS INC
Inventor： RUNNOE DENNIS H
IPC: H01J35/06 , H01J35/14 , H01J35/00 , H01J35/22 , H01J35/32 , H01J35/10 , H01J35/24 , H01J35/26 , H01J35/28 , H01J1/15 , H01J19/08 , H01J1/02 , H01J21/00
Abstract: An integral cathode for use with x-ray devices. The integral cathode includes an emitter made of a refractory metal such as tungsten, preferably doped with rhenium to afford malleability during construction and assembly. The integral cathode also includes a support cartridge, preferably composed of an electrically non-conductive material such as ceramic, in which the emitter is received. The support cartridge electrically isolates the cathode from the other components and structures of the x-ray device. Additionally, the support cartridge serves to impose, and maintain, a parabolic curve in the emitter. The parabolic form of the emitter naturally shapes an electron beam by causing electrons discharged from the emitter to converge at a focal spot. In this way, both the emission and focusing functions of the cathode are integrated and performed by a single part.
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公开(公告)号：FR2428322A1
公开(公告)日：1980-01-04
申请号：FR7914223
申请日：1979-06-01
Applicant: GRADY JOHN
Abstract: An X-ray tube including an envelope enclosing a flat-edged anode disc rotatable and axially reciprocable and further enclosing an electron beam source for projecting electrons along a beam axis toward the edge of the anode disc. The beam source is disposed to direct its beam at an acute angle of incidence to the edge of the anode disc and produce X-rays which are transmitted through a window in the envelope.
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公开(公告)号：NL7411735A
公开(公告)日：1975-03-06
申请号：NL7411735
申请日：1974-09-04
Applicant: MACHLETT LAB INC
IPC: H01J35/10 , H01J35/18 , H01J35/26 , H05G1/04 , H01J35/02 , G21K1/06 , H01J35/08 , H01J35/16 , H01J35/28
Abstract: An x-ray generator in which a moving target is illuminated by a beam of electrons having a predetermined energy. The target is in the form of a thin foil of a material which emits fluorescent x-radiation when illuminated by electrons having the predetermined energy. The target is sufficiently thin so that a substantial amount of the fluorescent radiation is emitted on the side opposite to the side being illuminated while bremsstrahlung radiation, to which the target is relatively opaque, is attenuated thereby providing for a greater percentage of radiation from the fluorescent portion of the spectrum. In addition, the target is inclined at an angle relative to an exit port of the generator for still greater attenuation of the bremsstrahlung with substantially no additional attenuation of the fluorescent radiation to which the target is substantially transparent. Highly monochromatic x-rays are thereby produced.
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