公开(公告)号：US12100573B2

公开(公告)日：2024-09-24

申请号：US17654436

申请日：2022-03-11

申请人： CANON ELECTRON TUBES & DEVICES CO., LTD.

发明人： Toshimi Watanabe ,  Hirobumi Yoshizawa ,  Junki Sone

IPC分类号： H01J35/12 ,  H01J35/06

CPC分类号： H01J35/13 ,  H01J35/064 ,  H01J2235/1204 ,  H01J2235/1233 ,  H01J2235/1262

摘要： According to one embodiment, an X-ray tube device includes a cathode which emits electrons, an anode target which generates X-rays when the electrons emitted from the cathode collide therewith, a first tube portion, a second tube portion which forms a flow path of a coolant together with the first tube portion, and a protective film. The protective film covers an inner surface of the first tube portion, and is formed of hard gold.

公开(公告)号：US12035451B2

公开(公告)日：2024-07-09

申请号：US17238799

申请日：2021-04-23

申请人： Carl Zeiss X-ray Microscopy, Inc.

发明人： Claus Flachenecker ,  Bruce Borchers ,  Thomas A. Case

IPC分类号： H05G1/02 ,  H01J35/12 ,  H01J35/14

CPC分类号： H05G1/025 ,  H01J35/13 ,  H01J35/14 ,  H01J2235/1204 ,  H01J2235/1216 ,  H01J2235/1262

摘要： An x-ray source has a target assembly including a target, an electron source for generating electrons to impact the target, and a flight tube assembly separating the target assembly from the electron source and transporting a coolant to the target assembly. The flight tube assembly includes a flight tube interface ring, a target cartridge tube, and an electrical isolation ring between the flight tube interface ring and the target cartridge tube.

公开(公告)号：US20230215680A1

公开(公告)日：2023-07-06

申请号：US18060494

申请日：2022-11-30

申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

发明人： Shoubo He ,  Wei Han ,  Yanfang Liu ,  Cheng Ni ,  Feichao Fu ,  Qi Wang

IPC分类号： H01J35/12

CPC分类号： H01J35/12 ,  H01J2235/1204 ,  H01J2235/086 ,  H01J2235/088

摘要： The present disclosure provides a device and an equipment for radiation ray generation. The device may include: a radiation target assembly configured to generate radiation rays under irradiation of an electron beam with a predetermined energy; and a heat dissipation assembly arranged on a back surface of the radiation target assembly, wherein a range of a thickness of the target assembly may be determined based on a peak of energy deposition of a target material of the radiation target assembly under the irradiation of the electron beam with the predetermined energy.

公开(公告)号：US20180033579A1

公开(公告)日：2018-02-01

申请号：US15717364

申请日：2017-09-27

申请人： NIKON METROLOGY NV

发明人： Roger HADLAND

IPC分类号： H01J35/02 ,  H01J29/48 ,  F16C35/04 ,  F16C33/76 ,  F16J15/16 ,  H05G1/12 ,  H02M7/10 ,  H01J35/10 ,  H01J35/04 ,  H01J35/16 ,  H02M1/32

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.

公开(公告)号：US20170169985A1

公开(公告)日：2017-06-15

申请号：US15327270

申请日：2015-06-26

申请人： KONINKLIJKE PHILIPS N.V.

发明人： PETER KLAUS BACHMANN ,  HANS JOACHIM MEYS ,  GEREON VOGTMEIER ,  CHRISTOPH TOBIAS WIRTH

IPC分类号： H01J35/10

CPC分类号： H01J35/105 ,  H01J35/10 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/1204 ,  H01J2235/1291

摘要： The present invention relates to a rotating anode (100) comprising: an outer ring compound (6) comprising a first carbon material with a first material property and carbon fibres substantially aligned to a contour of the outer ring compound (6), wherein the outer ring compound (6) is configured to mechanically stabilize the rotating anode (100); an intermediate ring compound (5) comprising a second carbon material with a second material property differing from the first material property; a inner disc compound (2) comprising a layered fibre structure and a third carbon material with a third material property differing from the first and the second material property, wherein the inner disc compound (2) and the intermediate ring compound (5) are configured to provide a thermally conductive interface between the intermediate ring compound (5) and the inner disc compound (2); and an interface compound (3) comprising a metallic or a semi-metallic material, wherein the interface compound is coupled to the intermediate ring compound (5) and the inner disc compound (2).

公开(公告)号：US09666403B2

公开(公告)日：2017-05-30

申请号：US14342346

申请日：2012-08-31

申请人： Valeriy Dondokovich Dugar-Zhabon ,  Eduardo Alberto Orozco Ospino

发明人： Valeriy Dondokovich Dugar-Zhabon ,  Eduardo Alberto Orozco Ospino

IPC分类号： H01J35/14 ,  H05G2/00 ,  H01J35/00 ,  H01J35/12 ,  H05H7/04 ,  H05H13/00

CPC分类号： H01J35/14 ,  H01J35/00 ,  H01J35/12 ,  H01J2235/1204 ,  H05G2/00 ,  H05H7/04 ,  H05H13/005

摘要： An X-ray source, which includes a resonant cavity preferably of a cylindrical shape, is excited in a microwave mode TE11p and affected by a static and non-homogeneous magnetic field that grows longitudinally. An electron beam is injected longitudinally through one of the lateral walls of the cavity and is continuously accelerated until it reaches an energy sufficient to produce X-rays after the electrons bombard a metallic target located in the plane where they stop their longitudinal movement. The profile of the magnetic field grows in such a way that it maintains the conditions of electron cyclotron resonance along the helical paths of the electrons, The device can be used to obtain radiographic images and even produce hard X-rays.

公开(公告)号：US20160351370A1

公开(公告)日：2016-12-01

申请号：US15166274

申请日：2016-05-27

申请人： Sigray, Inc.

发明人： Wenbing Yun ,  Sylvia Jia Yun Lewis ,  Janos Kirz ,  Alan Francis Lyon ,  David Charles Reynolds

IPC分类号： H01J35/10 ,  H01J35/18 ,  H01J35/06

CPC分类号： H01J35/08 ,  G21K1/06 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/1204

摘要： A compact source for high brightness x-ray generation is disclosed. The higher brightness is achieved through electron beam bombardment of multiple regions aligned with each other to achieve a linear accumulation of x-rays. This may be achieved through the use of x-ray targets that comprise microstructures of x-ray generating materials fabricated in close thermal contact with a substrate with high thermal conductivity. This allows heat to be more efficiently drawn out of the x-ray generating material, and allows bombardment of the x-ray generating material with higher electron density and/or higher energy electrons, leading to greater x-ray brightness. The orientation of the microstructures allows the use of a take-off angle at or near 0°, allowing the accumulation of x-rays from several microstructures to be aligned and be used to form a beam in the shape of an annular cone.

摘要翻译： 公开了用于高亮度x射线产生的紧凑源。 通过彼此对准的多个区域的电子束轰击实现较高的亮度，以实现x射线的线性积累。 这可以通过使用包括与具有高导热性的基板紧密热接触制造的x射线产生材料的微结构的x射线靶来实现。 这使得能够更有效地从X射线产生材料中引出热量，并且允许以较高电子密度和/或更高能量的电子轰击x射线产生材料，导致更大的x射线亮度。 微结构的方向允许使用在0°或接近0°的起飞角度，允许来自几个微结构的X射线的积聚被对准并且用于形成环形锥形的束。

公开(公告)号：US09490099B2

公开(公告)日：2016-11-08

申请号：US14463881

申请日：2014-08-20

申请人： Wisconsin Alumni Research Foundation

发明人： Thomas R. Mackie ,  Brandon J. Walker ,  Jonathon R. Seaton

IPC分类号： H01J35/30 ,  H01J35/04 ,  A61B6/03 ,  A61B6/00 ,  H01J35/06 ,  H01J35/12 ,  H01J35/14 ,  A61B6/06 ,  H01J35/00

CPC分类号： H01J35/14 ,  A61B6/032 ,  A61B6/035 ,  A61B6/06 ,  A61B6/40 ,  A61B6/4007 ,  A61B6/4014 ,  A61B6/4021 ,  A61B6/405 ,  A61B6/4488 ,  A61B6/482 ,  A61N5/1077 ,  H01J35/00 ,  H01J35/045 ,  H01J35/06 ,  H01J35/12 ,  H01J35/30 ,  H01J2235/068 ,  H01J2235/1204 ,  H01J2235/1262 ,  H01J2235/127

摘要： An imaging module includes a plurality of cathodes and respective gates, each cathode configured to generate a separate beam of electrons directed across a vacuum chamber and each gate matched to at least one respective cathode to enable and disable each separate beam of electrons from being directed across the vacuum chamber. A target anode is fixed within the vacuum chamber and arranged to receive the separate beam of electrons from each of the plurality of cathodes and, therefrom, generate a beam of x-rays. A deflection system is arranged between the plurality of cathodes and the target anode to generate a variable magnetic field to control a path followed by each of the separate beams of electrons to the target anode.

摘要翻译： 成像模块包括多个阴极和相应的栅极，每个阴极被配置为产生跨过真空室的单独的电子束，并且每个栅极与至少一个相应的阴极匹配，以使得能够使每个分离的电子束不被引导穿过 真空室。 目标阳极固定在真空室内并被布置成从多个阴极中的每一个接收独立的电子束，并且由此产生一束x射线。 偏转系统布置在多个阴极和目标阳极之间以产生可变磁场，以控制随着每个单独的电子束到目标阳极的路径。

公开(公告)号：US20160300686A1

公开(公告)日：2016-10-13

申请号：US14682890

申请日：2015-04-09

申请人： General Electric Company

发明人： George Theodore Dalakos ,  Mark Alan Frontera ,  Vance Scott Robinson ,  William Robert Ross ,  Xi Zhang

IPC分类号： H01J35/12

CPC分类号： H01J35/12 ,  H01J2235/088 ,  H01J2235/1204 ,  H01J2235/1233 ,  H01J2235/1291

摘要： In various embodiments, a multi-layer X-ray source target is provided having two or more layers of target material at different depths and different thicknesses. In one such embodiment the X-ray generating layers increase in thickness in relationship to their depth relative to the electron beam facing surface of the source target, such that X-ray generating layer further from this surface are thick than X-ray generating layers closer to the electron beam facing surface.

摘要翻译： 在各种实施例中，提供具有不同深度和不同厚度的两层或多层靶材料的多层X射线源靶。 在一个这样的实施例中，X射线产生层的厚度相对于其相对于源极靶的面向电子束的表面的深度而增加，使得从该表面进一步的X射线产生层比X射线产生层更厚 到面向电子束的表面。

公开(公告)号：US09263225B2

公开(公告)日：2016-02-16

申请号：US13054066

申请日：2009-07-15

申请人： Edward James Morton ,  Russell David Luggar ,  Martin Hunt

发明人： Edward James Morton ,  Russell David Luggar ,  Martin Hunt

IPC分类号： H01J35/12 ,  H01J35/08

CPC分类号： H01J35/12 ,  H01J35/08 ,  H01J2235/081 ,  H01J2235/083 ,  H01J2235/086 ,  H01J2235/1204 ,  H01J2235/1262

摘要： An anode for an X-ray tube includes at least one thermally conductive anode segment in contact with a rigid support member and cooling means arranged to cool the anode. The anode may further include a plurality of anode segments aligned end to end, each in contact with the support member.

摘要翻译： 用于X射线管的阳极包括与刚性支撑构件接触的至少一个导热阳极段和布置成冷却阳极的冷却装置。 阳极可以进一步包括多个阳极段，其端对端排列，每个阳极段与支撑构件接触。