公开(公告)号：US09466455B2

公开(公告)日：2016-10-11

申请号：US13162300

申请日：2011-06-16

Applicant: Jesse Knight Hubbard

Inventor： Jesse Knight Hubbard

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J2235/068

Abstract: Electron emitters for x-ray tubes. In one example embodiment, an electron emitter for an x-ray tube includes an electron filament and a plurality of electrical leads. The electron filament defines a plurality of openings. Each lead is positioned so as to extend through one of the openings and each lead is mechanically and electrically connected to the filament proximate the opening without the presence of braze material.

Abstract translation: X射线管用电子发射器。 在一个示例性实施例中，用于X射线管的电子发射器包括电子线和多个电引线。 电子丝限定了多个开口。 每个引线被定位成延伸穿过其中一个开口，并且每个引线在靠近开口处机械地和电连接到灯丝上而不存在钎焊材料。

公开(公告)号：US20160276124A1

公开(公告)日：2016-09-22

申请号：US15068700

申请日：2016-03-14

Applicant: Kabushiki Kaisha Toshiba ,  Toshiba Electron Tubes & Devices Co., Ltd.

Inventor： Takeshi KATO

IPC: H01J35/06 ,  H01J35/08

CPC classification number: H01J35/06 ,  H01J35/165

Abstract: According to one embodiment, an X-ray tube includes a cathode, an anode target and an envelope. The cathode includes an insulating member, a conductive line, a pin assembly, a filament, a focusing electrode, and a terminal assembly. The conductive line is formed on the insulating member. The pin assembly includes a pin and a first sleeve. The terminal assembly is fixed to the insulating member, is supporting the filament, and is electrically connecting the filament to the conductive line.

Abstract translation: 根据一个实施例，X射线管包括阴极，阳极靶和外壳。 阴极包括绝缘构件，导电线，销组件，灯丝，聚焦电极和端子组件。 导电线形成在绝缘构件上。 销组件包括销和第一套筒。 端子组件被固定到绝缘构件上，正在支撑灯丝，并将灯丝电连接到导线上。

公开(公告)号：US09408577B2

公开(公告)日：2016-08-09

申请号：US14189952

申请日：2014-02-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Miki Tamura ,  Kazuyuki Ueda

IPC: H01J35/06 ,  H01J35/12 ,  H01J35/16 ,  A61B6/02 ,  A61B6/00

CPC classification number: A61B6/025 ,  A61B6/4007 ,  A61B6/4085 ,  H01J35/06 ,  H01J35/12 ,  H01J35/16 ,  H01J2201/30469 ,  H01J2235/068 ,  H01J2235/166 ,  H01J2235/168 ,  H01J2235/186 ,  H01J2235/205

Abstract: A multiradiation generation apparatus according to the present invention includes a plurality of radiation sources arranged in a row. Each of the radiation sources includes an electron source configured to emit electrons and a target unit configured to generate radiation upon receiving electrons emitted from the electron source. At least one of the radiation sources is a dual-purpose radiation source used for both tomosynthesis imaging and non-tomosynthesis imaging, and the other radiation sources are single-purpose radiation sources used only for tomosynthesis imaging.

Abstract translation: 根据本发明的多辐射发生装置包括排列成一排的多个辐射源。 每个辐射源包括被配置为发射电子的电子源和被配置为在接收从电子源发射的电子时产生辐射的目标单元。 至少一个辐射源是用于断层成像成像和非断层成像成像的双重用途辐射源，而其他辐射源是仅用于断层成像成像的单用途辐射源。

公开(公告)号：US09364190B2

公开(公告)日：2016-06-14

申请号：US13300083

申请日：2011-11-18

Applicant: Susanne Madeline Lee ,  Aurelie Boudier ,  Serge Louis Wilfrid Muller

Inventor： Susanne Madeline Lee ,  Aurelie Boudier ,  Serge Louis Wilfrid Muller

IPC: A61B6/00 ,  B82Y10/00 ,  G21K1/06 ,  H01J35/06 ,  A61B6/08

CPC classification number: A61B6/482 ,  A61B6/08 ,  A61B6/4021 ,  A61B6/502 ,  A61B6/588 ,  B82Y10/00 ,  G21K1/06 ,  G21K2201/061 ,  G21K2201/064 ,  H01J35/06 ,  H01J2235/068

Abstract: A mammograph is provided. The mammograph includes a source of X-rays; a detector of X-rays, the source being configured to emit at least one beam of X-rays to the detector; and an optic control device configured to control the direction of X-rays emitted by the source such that the X-rays emitted by the source are substantially parallel to one another.

Abstract translation: 提供乳房X光检查。 乳房X线照相术包括X射线源; X射线检测器，所述源被配置为向所述检测器发射至少一束X射线; 以及光学控制装置，被配置为控制由所述源发射的X射线的方向，使得由所述源发射的X射线基本上彼此平行。

公开(公告)号：US20160056008A1

公开(公告)日：2016-02-25

申请号：US14463881

申请日：2014-08-20

Applicant: Wisconsin Alumni Research Foundation

Inventor： Thomas R. Mackie ,  Brandon J. Walker ,  Jonathon R. Seaton

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

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US09257257B2

公开(公告)日：2016-02-09

申请号：US12306635

申请日：2006-06-30

Applicant: Shin Fujita ,  Mohamed El-Gomati ,  Torquil Wells

Inventor： Shin Fujita ,  Mohamed El-Gomati ,  Torquil Wells

IPC: G01N23/00 ,  H01J37/065 ,  H01J35/06

CPC classification number: H01J37/065 ,  H01J35/06 ,  H01J2201/196 ,  H01J2237/06316 ,  H01J2237/3175

Abstract: Provided is a Schottky emitter having the conical end with a radius of curvature of 2.0 μm on the emission side of an electron beam. Since a radius of curvature is 1 μm or more, a focal length of an electron gun can be longer than in a conventional practice wherein a radius of curvature is in the range of from 0.5 μm to not more than 0.6 μm. The focal length was found to be roughly proportional to the radius of the curvature. Since the angular current intensity (the beam current per unit solid angle) is proportional to square of the electron gun focal length, the former can be improved by an order of magnitude within a practicable increase in the emitter radius. A higher angular current intensity means a larger beam current available from the electron gun and the invention enables the Schottky emitters to be used in applications which require relatively high beam current of microampere regime such as microfocus X-ray tube, electron probe micro-analyzer, and electron beam lithography system.

Abstract translation: 提供了一种在电子束的发射侧具有2.0μm的曲率半径的锥形端的肖特基发射体。 由于曲率半径为1μm以上，电子枪的焦距可以比曲率半径在0.5μm以上0.6μm以下的现有技术中长。 发现焦距与曲率半径成正比。 由于角电流强度（每单位立体角的射束电流）与电子枪焦距的平方成比例，所以前者可以在发射极半径的可行增加范围内提高一个数量级。 较高的角电流强度意味着可从电子枪获得的较大的束电流，并且本发明使肖特基发射体能够用于需要相对较高的微安电流束流的应用，如微焦X射线管，电子探针微量分析仪， 和电子束光刻系统。

公开(公告)号：US09251987B2

公开(公告)日：2016-02-02

申请号：US13619587

申请日：2012-09-14

Applicant: Xi Zhang ,  Carey Shawn Rogers ,  Ethan James Westcot ,  Mark Alan Frontera ,  Vance Scott Robinson ,  Yun Zou

Inventor： Xi Zhang ,  Carey Shawn Rogers ,  Ethan James Westcot ,  Mark Alan Frontera ,  Vance Scott Robinson ,  Yun Zou

IPC: H01J1/16 ,  H01J25/06 ,  H01J35/06

CPC classification number: H01J1/16 ,  H01J35/06 ,  H01J2235/1212

Abstract: Embodiments of the disclosure relate to electron emitters for use in conjunction with X-ray devices. In one embodiment, the emitter features a round emission area capable of emitting electrons when heated, wherein the round emission area comprises at least one of a gap, a channel, or a combination thereof that separates a first portion of the round emission area from a second portion of the round emission area and permits thermal expansion of the first portion and the second portion within the at least one gap or channel without permitting the first portion and the second portion to touch one another. The two electrically conductive legs coupled to the surface at respective locations outside the round emission area and that are capable of supplying current to the round emission area.

Abstract translation: 本公开的实施例涉及与X射线装置结合使用的电子发射器。 在一个实施例中，发射器具有能够在加热时发射电子的圆形发射区域，其中圆形发射区域包括间隔，沟道或其组合中的至少一个，其将圆形发射区域的第一部分与 圆形发射区域的第二部分，并且允许第一部分和第二部分在至少一个间隙或通道内的热膨胀，而不允许第一部分和第二部分彼此接触。 两个导电腿在圆形发射区域外的相应位置处耦合到表面，并且能够向圆形发射区域提供电流。

公开(公告)号：US20160020058A1

公开(公告)日：2016-01-21

申请号：US14774424

申请日：2014-03-12

Applicant: NIKON METROLOGY NV

Inventor： Roger HADLAND

IPC: H01J35/02 ,  H01J35/04 ,  H05G1/12 ,  F16C35/04 ,  H01J35/16 ,  F16J15/16 ,  F16C33/76 ,  H01J35/10 ,  H01J29/48

CPC classification number: 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

Abstract: Disclosed herein are a high-voltage generator (120) 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 (500), 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 (123a, 123b) electrically connected intermediate of a first voltage multiplier (122a, 122b) and a second voltage multiplier (122b, 122c). The electron beam apparatus includes control photodetectors (202a, 202b—not shown) and photo emitters (201a, 202a) having a transparent conductive shield (203a and 203b, 203c—not shown) arranged therebetween. The rotary vacuum seal includes a pumpable chamber (302) at a position intermediate between high-pressure and low-pressure ends of a bore (301) for a rotating shaft (401). The rotary target assembly is configured such that when a torque between a bearing housing (403) and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target (500) has a plurality of target plates (560) 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 (123a) maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.

Abstract translation: 本文公开了一种用于x射线源的高压发生器（120），x射线枪，电子束装置，旋转真空密封件，用于x射线源的靶组件，旋转x射线发射 目标（500）和x射线源。 这些各个方面可以单独地和/或一起实现能够在高达500kV及以上的能量下运行的x射线源，其适用于商业和研究的X射线应用如计算机断层摄影。 特别地，高电压发生器包括电连接第一电压倍增器（122a，122b）和第二电压倍增器（122b，122c）之间的屏蔽电极（123a，123b）。 电子束装置包括控制光电检测器（202a，202b，未示出）和具有布置在其间的透明导电屏蔽（203a和203b，203c-未示出）的光发射器（201a，202a）。 旋转式真空密封件包括位于用于旋转轴（401）的孔（301）的高压和低压端之间的位置的可泵送室（302）。 旋转目标组件被构造成使得当轴承壳体（403）和真空壳体之间的扭矩超过预定扭矩时，轴承壳体相对于真空壳体旋转。 旋转X射线发射目标（500）具有支撑在轮毂上的多个目标板（560），所述板布置在轮毂上以围绕轮毂的轴线旋转提供环形目标区域。 X射线枪设置有相对于与电子束发射阴极不同的x射线靶保持在电位差的屏蔽电极（123a）。

公开(公告)号：US20150332887A1

公开(公告)日：2015-11-19

申请号：US14417546

申请日：2013-07-12

Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hun Kuk Park ,  Je Hwang Ryu

IPC: H01J35/06 ,  H05G1/52

CPC classification number: H01J35/06 ,  H01J35/04 ,  H01J35/065 ,  H01J2201/30469 ,  H01J2235/062 ,  H05G1/52

Abstract: The present invention discloses a digital X-ray source. The digital X-ray source includes an X-ray generation unit that emits X-rays, wherein the X-ray generation unit includes a cathode electrode; an emitter formed above the cathode electrode; an anode electrode located above the emitter; a gate electrode located between the emitter and the anode electrode; first and second focusing electrodes located between the emitter and the anode electrode; and an electrode connecting unit configured to include one or more insulating tubes capable of fixing and adjusting the locations of the gate electrode and the first and second focusing electrodes on the cathode electrode, and also configured to individually insulate and connect the cathode electrode, the gate electrode and the first and second focusing electrodes from and with electric lines

Abstract translation: 本发明公开了一种数字X射线源。 数字X射线源包括发射X射线的X射线产生单元，其中X射线产生单元包括阴极电极; 在阴极电极上方形成发射极; 位于发射体上方的阳极; 位于发射极和阳极之间的栅电极; 位于发射极和阳极之间的第一和第二聚焦电极; 以及电极连接单元，被配置为包括一个或多个绝缘管，所述绝缘管能够固定和调节所述栅电极和所述第一和第二聚焦电极在所述阴极上的位置，并且还被配置为单独地绝缘并连接所述阴极，所述栅极 电极以及来自和与电线的第一和第二聚焦电极

公开(公告)号：US20150262782A1

公开(公告)日：2015-09-17

申请号：US14427580

申请日：2012-09-12

Applicant: Takumi Kobayashi ,  Masaaki Ukita

Inventor： Takumi Kobayashi ,  Masaaki Ukita

IPC: H01J35/06 ,  H01J35/16

CPC classification number: H01J35/06 ,  H01J1/16 ,  H01J35/16 ,  H01J35/305

Abstract: This X-ray tube device includes an anode and a cathode including an emitter emitting an electron to the anode. The emitter includes an electron emission portion in a flat plate shape, a pair of terminal portions extending from the electron emission portion, connected to an electrode, and a supporting portion provided separately from the terminal portions, insulated from the electrode, supporting the electron emission portion.

Abstract translation: 该X射线管装置包括阳极和阴极，其包括向阳极发射电子的发射体。 发射极包括平板状的电子发射部分，从电子发射部分延伸的一对端子部分，连接到电极，以及与端子部分分开设置的与电极绝缘的支撑部分的支撑部分，支撑电子发射 一部分。