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公开(公告)号:US11817287B1
公开(公告)日:2023-11-14
申请号:US18316257
申请日:2023-05-12
发明人: Li Xi , Kaiyuan Xue , Daining Fang
CPC分类号: H01J35/101 , H01J35/066 , H01J35/106 , H01J35/147 , H01J35/20 , H01J2235/1026 , H01J2235/1275
摘要: 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.
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公开(公告)号:US11804354B2
公开(公告)日:2023-10-31
申请号:US17372960
申请日:2021-07-12
发明人: Christian Loesch , Matthias Seufert
IPC分类号: H01J35/10
CPC分类号: H01J35/101 , H01J35/106 , H01J2235/1026 , H01J2235/1204
摘要: An X-ray source device includes an anode to generate X-rays; a drive to rotate the anode about an anode central axis, the drive including a stator and a first rotor, and the first rotor being rotationally fixed relative to the anode; and a cooling facility to cool at least one of the anode and the drive using a coolant. The drive includes a second rotor to circulate the coolant.
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公开(公告)号:US20230317396A1
公开(公告)日:2023-10-05
申请号:US17987145
申请日:2022-11-15
发明人: Yusuke Teramoto
IPC分类号: H01J35/10
CPC分类号: H01J35/101 , H01J2235/082
摘要: A light source apparatus, in which an energy beam transforms a liquid raw material into plasma to extract radiation, includes a rotation body, a raw material supply section, and a layer thickness adjustment section. The rotation body is disposed at a position onto which the energy beam is incident, and includes a groove overlapping with an incident area of the energy beam. The raw material supply section supplies the groove with the liquid raw material. The layer thickness adjustment section adjusts a layer thickness of the liquid raw material such that a front surface of the liquid raw material forms a concave surface in response to the groove in the incident area of the energy beam.
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公开(公告)号:US20190206653A1
公开(公告)日:2019-07-04
申请号:US16236422
申请日:2018-12-29
发明人: Yun ZOU , Xi ZHANG , Dun LI , Yanfeng DU , Haining SUN
CPC分类号: H01J35/101 , H01J35/06 , H01J35/18 , H01J2235/068 , H01J2235/085
摘要: A radiation emission device is provided. The radiation emission device may include an anode, a first cathode, a heating device and an enclosure. The first cathode may include a first filament that emit an electron beam striking the anode to generate radioactive rays for imaging. The heating device may be located outside of the first cathode and be configured to warm up the anode. The enclosure may be configured to enclosure the first cathode and the anode.
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公开(公告)号:US20190164716A1
公开(公告)日:2019-05-30
申请号:US15827920
申请日:2017-11-30
发明人: Ian Strider Hunt , Kevin Kruse , Andrew Triscari
CPC分类号: H01J35/101 , F16C17/04 , F16C33/6659 , F16C37/002 , F16C2316/10 , F16C2380/16 , H01J35/106 , H01J2235/1013 , H01J2235/1046 , H01J2235/1208 , H01J2235/1266 , H01J2235/1279 , H05G1/00 , H05G1/02 , H05G1/025
摘要: A bearing structure for an X-ray tube is provided that includes a journal bearing shaft with a radially protruding thrust bearing flange encased within a bearing housing or sleeve. The sleeve includes a thrust seal that is engaged with the sleeve in a manner to maintain coaxiality for the rotating liquid metal seal formed in the sleeve about the shaft. The shaft includes a central bore containing a cooling tube that directs coolant within the bore to maximize the heat transfer from the shaft to the coolant, allowing materials with lower thermal conductivities, such as steel, to be used to form the bearing shaft. The thrust flange on the shaft is formed with channel(s) therein that enable the coolant and/or the liquid metal to effect greater heat transfer on the components of the sleeve through the thrust flange, thereby reducing thermal deformation of the bearing components.
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公开(公告)号:US20190027337A1
公开(公告)日:2019-01-24
申请号:US16141676
申请日:2018-09-25
申请人: Neil Dee Olsen
发明人: Neil Dee Olsen
IPC分类号: H01J35/10
CPC分类号: H01J35/10 , H01J35/101 , H01J35/105 , H01J35/108 , H01J2235/081 , H01J2235/084 , H01J2235/1295
摘要: An anode for an X-ray tube can include one or more of an yttrium-oxide derivative, titanium diboride, boron carbide, titanium suboxide, reaction-bonded silicon carbide, and reaction-bonded silicon nitride. Upon collision with an anode, the kinetic energy of an electron beam in an X-ray tube is converted to high-frequency electromagnetic waves, i.e., X-rays. An anode from one or more of the above materials and a gradient distribution of conductive metals can reduce costs and/or weight, extend the life of the anode or associated components (e.g., bearings) and simultaneously provide a higher heat storage capacity as compared to traditional molybdenum and tungsten anodes.
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公开(公告)号:US09976971B2
公开(公告)日:2018-05-22
申请号:US14639460
申请日:2015-03-05
IPC分类号: G01N23/20 , G01N23/207 , H01J35/02 , H01J35/10 , H01J35/16 , H01J35/08 , H01J35/24 , H01J35/26
CPC分类号: G01N23/20008 , G01N23/20 , G01N23/20025 , G01N23/207 , H01J35/02 , H01J35/025 , H01J35/08 , H01J35/10 , H01J35/101 , H01J35/16 , H01J35/24 , H01J35/26 , H01J2235/081 , H01J2235/086
摘要: An x-ray diffraction system includes an x-ray source having a first interchangeable x-ray generating component, a second interchangeable x-ray generating component, an actuator and a controller operatively connected to the actuator. The first and second interchangeable x-ray generating components are interchangeable with one another. The actuator is operatively connected to the first and second interchangeable x-ray generating components. A method for non-destructive x-ray diffraction includes emitting a first x-ray beam from an x-ray source with a first interchangeable x-ray generating component based on a first desired depth to measure a crystallographic signature of a sample at the first desired depth, interchanging the first interchangeable x-ray generating component with a second interchangeable x-ray generating component to form a modified x-ray source, and emitting a second x-ray beam from the modified x-ray source based on a second desired depth, to non-destructively measure a crystallographic signature of the sample at the second desired depth.
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公开(公告)号:US09966217B2
公开(公告)日:2018-05-08
申请号:US15717388
申请日:2017-09-27
申请人: NIKON METROLOGY NV
发明人: Roger Hadland
IPC分类号: H01J35/10 , H01J35/02 , H01J35/16 , F16J15/16 , H01J29/48 , F16C35/04 , F16C33/76 , H02M1/32 , H05G1/12 , H02M7/10 , H01J35/04
CPC分类号: H01J35/025 , F16C33/768 , F16C35/042 , F16J15/16 , H01J29/48 , H01J35/04 , H01J35/06 , H01J35/101 , H01J35/106 , H01J35/108 , H01J35/16 , H01J37/065 , H01J2235/0236 , H01J2235/083 , H01J2235/086 , H01J2235/087 , H01J2235/1046 , H01J2235/1204 , H01J2235/1262 , H01J2235/20 , H01J2237/2482 , H02M1/32 , H02M7/106 , H05G1/12
摘要: Disclosed herein are a high-voltage generator for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target, and an x-ray source. These various aspects may separately and/or together enable the construction of an x-ray source which can operate at energies of up to 500 kV and beyond, which is suitable for use in commercial and research x-ray applications such as computerised tomography. In particular, the high-voltage generator includes a shield electrode electrically connected intermediate of a first voltage multiplier and a second voltage multiplier. The electron beam apparatus includes control photodetectors and photo emitters having a transparent conductive shield arranged therebetween. The rotary vacuum seal includes a pumpable chamber at a position intermediate between high-pressure and low-pressure ends of a bore for a rotating shaft. The rotary target assembly is configured such that when a torque between a bearing housing and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target has a plurality of target plates supported on a hub, the plates being arranged on the hub to provide an annular target region about an axis rotation of the hub. The x-ray gun is provided with a shield electrode maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.
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公开(公告)号:US09947501B2
公开(公告)日:2018-04-17
申请号:US15717372
申请日:2017-09-27
申请人: NIKON METROLOGY NV
发明人: Roger Hadland
IPC分类号: H01J35/06 , H01J35/02 , H01J35/16 , F16J15/16 , H01J29/48 , F16C35/04 , F16C33/76 , H02M1/32 , H05G1/12 , H02M7/10 , H01J35/10 , H01J35/04 , H01J37/065
CPC分类号: H01J35/025 , F16C33/768 , F16C35/042 , F16J15/16 , H01J29/48 , H01J35/04 , H01J35/06 , H01J35/101 , H01J35/106 , H01J35/108 , H01J35/16 , H01J37/065 , H01J2235/0236 , H01J2235/083 , H01J2235/086 , H01J2235/087 , H01J2235/1046 , H01J2235/1204 , H01J2235/1262 , H01J2235/20 , H01J2237/2482 , H02M1/32 , H02M7/106 , H05G1/12
摘要: Disclosed herein are a high-voltage generator for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target, and an x-ray source. These various aspects may separately and/or together enable the construction of an x-ray source which can operate at energies of up to 500 kV and beyond, which is suitable for use in commercial and research x-ray applications such as computerised tomography. In particular, the high-voltage generator includes a shield electrode electrically connected intermediate of a first voltage multiplier and a second voltage multiplier. The electron beam apparatus includes control photodetectors and photo emitters having a transparent conductive shield arranged therebetween. The rotary vacuum seal includes a pumpable chamber at a position intermediate between high-pressure and low-pressure ends of a bore for a rotating shaft. The rotary target assembly is configured such that when a torque between a bearing housing and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target has a plurality of target plates supported on a hub, the plates being arranged on the hub to provide an annular target region about an axis rotation of the hub. The x-ray gun is provided with a shield electrode maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.
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10.
公开(公告)号:US09941090B2
公开(公告)日:2018-04-10
申请号:US15717402
申请日:2017-09-27
申请人: NIKON METROLOGY NV
发明人: Roger Hadland
IPC分类号: H01J35/10 , H01J35/02 , H01J35/16 , F16J15/16 , H01J29/48 , F16C35/04 , F16C33/76 , H02M1/32 , H05G1/12 , H02M7/10 , H01J35/04
CPC分类号: H01J35/025 , F16C33/768 , F16C35/042 , F16J15/16 , H01J29/48 , H01J35/04 , H01J35/06 , H01J35/101 , H01J35/106 , H01J35/108 , H01J35/16 , H01J37/065 , H01J2235/0236 , H01J2235/083 , H01J2235/086 , H01J2235/087 , H01J2235/1046 , H01J2235/1204 , H01J2235/1262 , H01J2235/20 , H01J2237/2482 , H02M1/32 , H02M7/106 , H05G1/12
摘要: Disclosed herein are a high-voltage generator for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target, and an x-ray source. These various aspects may separately and/or together enable the construction of an x-ray source which can operate at energies of up to 500 kV and beyond, which is suitable for use in commercial and research x-ray applications such as computerised tomography. In particular, the high-voltage generator includes a shield electrode electrically connected intermediate of a first voltage multiplier and a second voltage multiplier. The electron beam apparatus includes control photodetectors and photo emitters having a transparent conductive shield arranged therebetween. The rotary vacuum seal includes a pumpable chamber at a position intermediate between high-pressure and low-pressure ends of a bore for a rotating shaft. The rotary target assembly is configured such that when a torque between a bearing housing and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target has a plurality of target plates supported on a hub, the plates being arranged on the hub to provide an annular target region about an axis rotation of the hub. The x-ray gun is provided with a shield electrode maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.
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