公开(公告)号：US09070529B2

公开(公告)日：2015-06-30

申请号：US13483193

申请日：2012-05-30

Applicant: Miki Tamura ,  Shuji Aoki ,  Yoshihiro Yanagisawa ,  Kazuyuki Ueda

Inventor： Miki Tamura ,  Shuji Aoki ,  Yoshihiro Yanagisawa ,  Kazuyuki Ueda

IPC: H01J35/08 ,  H01J35/12 ,  H01J35/14 ,  H01J35/16 ,  H01J35/18 ,  H05G1/06

CPC classification number: H01J35/08 ,  H01J35/12 ,  H01J35/14 ,  H01J35/16 ,  H01J35/18 ,  H01J2235/06 ,  H01J2235/087 ,  H01J2235/1204 ,  H01J2235/1216 ,  H01J2235/122 ,  H01J2235/1295 ,  H01J2235/16 ,  H01J2235/167 ,  H05G1/06

Abstract: In a radiation imaging apparatus, an envelope has a first window for transmitting radiation and is filled with an insulating liquid, and a radiation tube in the envelope has, at a position facing the first window, a second window for transmitting the radiation, and a shielding member. A solid insulating member is arranged between the shielding member and the inner wall of the envelope, and an opening is formed at a position on the insulating member corresponding to the first window. The shortest distance from the shielding member to the first window or the inner wall of the envelope through the opening of the insulating member without the insulating member is made to be longer than the shortest distance from the shielding member to the first window or the inner wall of the envelope through the insulating member, thereby improving withstand voltage performance without reducing an radiation amount.

Abstract translation: 在放射线成像装置中，外壳具有用于透射辐射的第一窗口，并填充有绝缘液体，并且外壳中的辐射管在朝向第一窗口的位置处具有用于透射辐射的第二窗口， 屏蔽构件。 在屏蔽构件和封套的内壁之间设置有固体绝缘构件，并且在对应于第一窗口的绝缘构件上的位置处形成开口。 通过没有绝缘构件的绝缘构件的开口，从屏蔽构件到第一窗口或封套的内壁的最短距离比从屏蔽构件到第一窗口或内壁的最短距离 通过绝缘构件的封套，从而在不降低辐射量的情况下提高耐压性能。

公开(公告)号：US09053897B2

公开(公告)日：2015-06-09

申请号：US13991427

申请日：2011-12-14

Applicant: Kevin Charles Kraft ,  Ming-Wei Paul Xu ,  Min He ,  Gerald James Carlson

Inventor： Kevin Charles Kraft ,  Ming-Wei Paul Xu ,  Min He ,  Gerald James Carlson

IPC: H01J35/10 ,  H01J35/08 ,  H01J35/12 ,  H01J9/02

CPC classification number: H01J35/105 ,  H01J9/02 ,  H01J35/08 ,  H01J35/10 ,  H01J35/108 ,  H01J35/12 ,  H01J2235/081 ,  H01J2235/084

Abstract: An anode (30) is formed by building a carbon, such as a carbon reinforced carbon composite, or other ceramic substrate (50). A ductile, refractory metal is electroplated on the ceramic substrate to form a refractory metal carbide layer (52) and a ductile refractory metal layer (54), at least on a focal track portion (36). A high-Z refractory metal is vacuum plasma sprayed on the ductile refractory metal layer to form a vacuum plasma sprayed high-Z refractory metal layer (56), at least on the focal track portion.

Abstract translation: 阳极（30）通过构造碳（例如碳增强碳复合材料）或其它陶瓷基板（50）而形成。 至少在焦点轨迹部分（36）上，在陶瓷基片上电镀延性难熔金属以形成难熔金属碳化物层（52）和延性难熔金属层（54）。 高Z难熔金属是真空等离子体喷涂在韧性难熔金属层上，以形成至少在焦点轨道部分上的真空等离子体喷涂的高Z难熔金属层（56）。

公开(公告)号：US09048061B2

公开(公告)日：2015-06-02

申请号：US14094603

申请日：2013-12-02

Applicant: Rapiscan Systems, Inc.

Inventor： Edward James Morton

IPC: H01J35/02 ,  H01J35/08 ,  G01N23/06 ,  G01V5/00 ,  G01N23/04

CPC classification number: G01N23/087 ,  A61B6/4042 ,  A61B6/482 ,  G01N23/04 ,  G01N23/046 ,  G01N23/06 ,  G01N2223/206 ,  G01V5/00 ,  H01J35/08 ,  H01J2235/086 ,  H01J2235/088

Abstract: The present invention is directed toward an X-ray scanner that has an electron source and an anode. The anode has a target surface with a series of material areas spaced along it in a scanning direction. The material areas are formed from different materials. The electron source is arranged to direct electrons at a series of target areas of the target surface, in a predetermined order, so as to generate X-ray beams having different energy spectra.

Abstract translation: 本发明涉及具有电子源和阳极的X射线扫描器。 阳极具有目标表面，其中沿着扫描方向间隔开一系列材料区域。 材料区域由不同的材料形成。 电子源被布置成以预定顺序引导目标表面的一系列目标区域处的电子，以便产生具有不同能量谱的X射线束。

公开(公告)号：US09036786B2

公开(公告)日：2015-05-19

申请号：US13489446

申请日：2012-06-05

Applicant: Bruce Briant Parsons ,  Chi-Chieh Cheng

Inventor： Bruce Briant Parsons ,  Chi-Chieh Cheng

IPC: H01J35/00 ,  H01J35/02 ,  H01J35/08 ,  G21K3/00 ,  H01J35/18 ,  A61B6/00

CPC classification number: H01J35/08 ,  A61B6/508 ,  H01J35/18 ,  H01J2235/081 ,  H01J2235/087 ,  H01J2235/186

Abstract: The present invention provides a transmission type X-ray tube and a reflection type X-ray tube. The transmission type X-ray tube comprises a target and a filter material. The target has at least one element which produces X-rays as being excited. The X-rays comprise characteristic Kα and Kβ emission energies of the element for producing images of an object impinged by the X-rays. The filter material through which the X-rays pass has a k-edge absorption energy that is higher than the Kα emission energies and is lower than the Kβ emission energies. The thickness of the filter material is at least 10 microns and less than 3 millimeters.

Abstract translation: 本发明提供一种透射型X射线管和反射型X射线管。 透射型X射线管包括靶和过滤材料。 目标具有至少一个产生X射线激发的元素。 X射线包括特征Kα和K＆bgr; 用于产生被X射线照射的物体的图像的元件的发射能量。 X射线通过的过滤材料具有比Kα发射能量高的K边缘吸收能并且低于K＆bgr; 排放能量。 过滤材料的厚度至少为10微米且小于3毫米。

公开(公告)号：US09029795B2

公开(公告)日：2015-05-12

申请号：US14155207

申请日：2014-01-14

Applicant: Canon Kabushiki Kaisha

Inventor： Kazuhiro Sando ,  Noritaka Ukiyo ,  Yasue Sato ,  Yoshihiro Yanagisawa

IPC: H01J35/08 ,  G01N23/04

CPC classification number: H01J35/08 ,  H01J35/18 ,  H01J2235/087 ,  H01J2235/165 ,  H01J2235/186

Abstract: A radiation generating tube includes an electron emitting source configured to emit an electron beam; a target configured to generate radiation when the target is irradiated with the electron beam; a rear shield body having a tube-shaped electron passage with openings thereof at each end of the passage, and being located at the side of the electron emitting source with respect to the target, a first opening of the passage facing the electron emitting source and being separated from the electron emitting source, a second opening of the passage facing the target; and a brazing material joining the rear shield body with a peripheral edge of the target, at a position separated from the second opening. A closed space isolated from the electron passage is provided between the target and the rear shield body.

Abstract translation: 辐射发生管包括被配置为发射电子束的电子发射源; 被配置为当靶被电子束照射时产生辐射的目标; 后屏蔽体，其具有在通道的每个端部处具有开口的管状电子通道，并且相对于靶位于电子发射源的侧面，面向电子发射源的通道的第一开口和 与电子发射源分离，面向目标的通道的第二开口; 以及在与所述第二开口分离的位置处将所述后屏蔽体与所述靶的周缘连接的钎焊材料。 在目标和后屏蔽体之间设置与电子通道分离的封闭空间。

公开(公告)号：US20150124935A1

公开(公告)日：2015-05-07

申请号：US14506362

申请日：2014-10-03

Applicant: X-Illumina, Inc.

Inventor： Steven D. Hansen

IPC: H01J35/08 ,  H01J35/06

CPC classification number: H05G2/00 ,  H01J19/04 ,  H01J19/24 ,  H01J35/065 ,  H01J35/08 ,  H05H1/52

Abstract: Described herein are methods and systems relating to an x-ray generation system. In some embodiments, the system includes an electron beam acceleration region that generates an electron beam and accelerates electrons in the beam and a radiation generation region that (i) receives the electron beam and (ii) generates an electric field having an energy of greater than about 10E7 V/m without electrical breakdown of vacuum gaps. The electric field is configured to decelerate electrons in the electron beam sufficiently to generate x-ray energy.

Abstract translation: 这里描述了与x射线产生系统有关的方法和系统。 在一些实施例中，该系统包括产生电子束并加速该束中的电子的电子束加速区域和（i）接收电子束的辐射产生区域，以及（ii）产生具有大于 约10E7 V / m，无电绝缘真空间隙。 电场被配置为使电子束中的电子充分减速以产生x射线能量。

公开(公告)号：US20150110252A1

公开(公告)日：2015-04-23

申请号：US14490672

申请日：2014-09-19

Applicant: Wenbing Yun ,  Sylvia Jia Yun Lewis ,  Janos Kirz ,  Alan Francis Lyon

Inventor： Wenbing Yun ,  Sylvia Jia Yun Lewis ,  Janos Kirz ,  Alan Francis Lyon

IPC: H01J35/14 ,  H01J35/18

CPC classification number: H01J35/08 ,  G21K1/06 ,  H01J2235/081 ,  H01J2235/086

Abstract: We disclose a compact source for high brightness x-ray generation. 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 by aligning discrete x-ray sources, or through the use of novel x-ray targets that comprise a number of 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 in turn 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 an on-axis collection angle, allowing the accumulation of x-rays from several microstructures to be aligned to appear to have a single origin, also known as “zero-angle” x-ray emission.

Abstract translation: 我们公开了一个紧凑的高亮度x射线产生源。 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。 这可以通过对准离散的x射线源或通过使用新的x射线靶来实现，所述X射线靶包括与具有高导热性的基底紧密热接触制造的x射线产生材料的多个微结构。 这样可以更有效地将热量从X射线产生材料中拉出，并且进而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轴上收集角，允许来自若干微结构的X射线的积聚被对准以看起来具有单个原点，也称为“零角”x射线发射。

公开(公告)号：US20150071404A1

公开(公告)日：2015-03-12

申请号：US14385370

申请日：2013-03-07

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Heidrun Steinhauser

IPC: H05G1/52 ,  G01N23/04 ,  H01J35/14

CPC classification number: A61B6/022 ,  A61B6/4021 ,  A61B6/4028 ,  A61B6/4441 ,  G01N23/04 ,  H01J35/065 ,  H01J35/08 ,  H01J35/10 ,  H01J35/14 ,  H01J35/30 ,  H01J2235/068 ,  H05G1/52

Abstract: The present invention relates to monoscopic and stereoscopic X-ray viewing. In order to provide an improved fluent work flow for X-ray viewing with an improved visual perception of depth information, it is provided to generate an electron beam from a cathode arrangement towards a target area of an anode; to deflect the electron beam such that the electron beam hits the anode at different target spots (94a, 94b), wherein the variation is provided as gradual variation of an impinging direction of the electrons such that a stepless transition between monoscopic and stereoscopic viewing is provided. In the monoscopic viewing, X-ray radiation is generated from a single focal spot position, and wherein in the stereoscopic viewing, X-ray radiation is generated from two focal spot positions spaced apart from each other in a first stereo-direction transverse to a viewing direction (92). It is further provided to generate X-ray radiation by the electron beam impinging on the target area, wherein the X-ray radiation is provided with different focal spots for monoscopic and stereoscopic X-ray imaging. Still further it is provided to display or otherwise provide image data of the object with a gradual transition between monoscopic and stereoscopic viewing.

Abstract translation: 本发明涉及单视和立体X射线观察。 为了提供改进的用于X射线观察的流畅工作流程，具有改善的深度信息的视觉感知，提供了从阴极装置向阳极的目标区域产生电子束; 以使电子束偏转，使得电子束在不同的目标点（94a，94b）处撞击阳极，其中变化被提供为电子的撞击方向的逐渐变化，使得提供单视和立体观看之间的无级转换 。 在单视野观察中，从单个焦点位置产生X射线辐射，并且其中在立体视觉中，X射线辐射是从横向于第一立体视角的第一立体声方向彼此间隔开的两个焦点位置产生的 观察方向（92）。 进一步提供用于通过照射在目标区域上的电子束产生X射线辐射，其中X射线辐射具有用于单视和立体X射线成像的不同焦点。 还进一步提供用于在单视和立体观看之间逐渐过渡地显示或以其他方式提供对象的图像数据。

公开(公告)号：US20150030119A1

公开(公告)日：2015-01-29

申请号：US14335650

申请日：2014-07-18

Applicant: CANON KABUSHIKI KAISHA

Inventor： Miki Tamura ,  Kazuyuki Ueda

IPC: H05G1/32 ,  A61B6/00 ,  A61B6/02

CPC classification number: A61B6/542 ,  A61B6/025 ,  A61B6/4007 ,  H01J35/045 ,  H01J35/08 ,  H01J35/16 ,  H01J35/18 ,  H01J2235/068 ,  H01J2235/087 ,  H01J2235/168 ,  H05G1/085 ,  H05G1/70

Abstract: A multi-source radiation generator in which plural radiation sources are arranged in series includes a control unit that controls a dose of radiation emitted from each of the radiation sources depending on positions of the radiation sources, and reduces variation in a radiation dose resulting from differences in positions of the radiation sources by changing an irradiation time, an anodic current value of each of the radiation sources depending on a distance from each of the radiation sources to a subject.

Abstract translation: 其中多个辐射源串联布置的多源辐射发生器包括控制单元，该控制单元根据辐射源的位置来控制从每个辐射源发射的辐射剂量，并且减少由差异引起的辐射剂量的变化 在通过改变照射时间的辐射源的位置中，每个辐射源的阳极电流值取决于从每个辐射源到被摄体的距离。

公开(公告)号：US20140369470A1

公开(公告)日：2014-12-18

申请号：US14293493

申请日：2014-06-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Noritaka Ukiyo ,  Yasue Sato ,  Yoshihiro Yanagisawa ,  Kazuhiro Sando

IPC: H01J35/16 ,  H01J35/06 ,  H01J35/08 ,  G01N23/04

CPC classification number: H01J35/16 ,  G21G4/08 ,  H01J19/42 ,  H01J19/56 ,  H01J35/08 ,  H01J37/16 ,  H01J2229/4827 ,  H01J2229/86 ,  H01J2235/087 ,  H01J2235/16 ,  H01J2235/165 ,  H01J2235/166 ,  H01J2237/16 ,  H05G1/04 ,  H05G1/06

Abstract: Provided is a radiation generating tube in which an insulating tube is prevented from being damaged by heat generation of a target or an electron emitting source during drive. Extending portions extending along an outer periphery of an insulating tube are provided to a cathode and an anode, respectively, and the insulating tube is joined to the extending portions to enhance the strength of joint portions. At the same time, the insulating tube can be deformed easily by setting a tube wall thickness of the insulating tube at a central portion in a longitudinal direction to be smaller than a tube wall thickness of an opening end, and thus the concentration of thermal stress on the joint portions caused by an increase in temperature of the cathode and the anode is alleviated.

Abstract translation: 提供一种辐射发生管，其中防止绝缘管在驱动期间被靶或电子发射源的发热而损坏。 在绝缘管的外周延伸的部分分别设置在阴极和阳极上，并且绝缘管与延伸部分接合以提高接头部分的强度。 同时，通过将绝缘管的长度方向中央部的管壁厚设定为小于开口端的管壁厚度，能够容易地变形绝缘管，因此热应力的集中 在阴极和阳极的温度升高引起的接合部分被减轻。