公开(公告)号：US20160228076A1

公开(公告)日：2016-08-11

申请号：US15022905

申请日：2014-09-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kazushige Utsumi ,  Nobuhiro Ito ,  Kazuyuki Ueda ,  Kazuya Tsujino

IPC: A61B6/00 ,  H01J35/08 ,  A61B6/03 ,  A61B6/02

CPC classification number: A61B6/4028 ,  A61B6/02 ,  A61B6/025 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/502 ,  A61B6/54 ,  G21K1/02 ,  H01J35/08 ,  H01J2235/087 ,  H01J2235/165

Abstract: The present invention provides an X-ray generating tube including a transmission target having a minute focal spot. The X-ray generating; tube includes a transmission target having a first surface and a second surface opposite to the first surface, the first surface being irradiated with an electron beam, and the target radiating X-rays from the second surface; an electron emitting source emitting the electron beam in such a manner that the electron beam obliquely enters the first surface; and a tubular forward shield member located at the second surface side of the target to define an extraction angle of an extracted X-ray beam. The forward shield member is disposed such that a central axis of the electron beam and a central axis of the X-ray beam whose extraction angle is defined are located at the same side with respect to a virtual normal plane perpendicular to the first surface and a projection central axis that is a projection of the central axis of the electron beam to the first surface.

Abstract translation: 本发明提供一种包括具有微小焦斑的透射目标的X射线产生管。 X射线产生; 管包括具有第一表面和与第一表面相对的第二表面的透射靶，第一表面被电子束照射，并且靶从第二表面辐射X射线; 以电子束倾斜地进入第一表面的方式发射电子束的电子发射源; 以及位于所述靶的第二表面侧的管状前部屏蔽构件，以限定所提取的X射线束的提取角度。 前方屏蔽部件被配置为使得电子束的中心轴线和X射线束的中心轴的取向角被定义在相对于垂直于第一表面的虚拟法线的同一侧， 突出中心轴，其是电子束的中心轴线到第一表面的投影。

公开(公告)号：US20150382440A1

公开(公告)日：2015-12-31

申请号：US14763949

申请日：2013-11-05

Applicant: FUTABA CORPORATION ,  HAMAMATSU PHOTONICS K.K.

Inventor： Tatsuya NAKAMURA ,  Norimasa KOSUGI ,  Naoki OKUMURA ,  Yoshitaka SATO ,  Akira MATSUMOTO ,  Yoshihisa MARUSHIMA ,  Kazuhito NAKAMURA

IPC: H05G1/10 ,  H01J35/06

CPC classification number: H05G1/10 ,  H01J35/06 ,  H01J35/08 ,  H01J35/16 ,  H01J2235/087 ,  H05G1/06

Abstract: In an X-ray radiation source, a counter wall made of alkali-containing glass, out of walls of a housing of an X-ray tube, is arranged opposite to a high-voltage region VH of a power supply unit including a high-voltage generation module which generates a negative high voltage to be applied to a filament. This configuration prevents an electric field from being generated in the counter wall and thus suppresses precipitation of alkali ions from the glass. Therefore, it prevents change in potential relationship between electrodes at different potentials such as the filament, grid, and target and prevents occurrence of a trouble of failure in maintaining a desired X-ray amount, thus enabling stable operation to be maintained.

Abstract translation: 在X射线辐射源中，由X射线管的壳体的壁出来的由含碱玻璃制成的反向壁与包括高分子材料的电源单元的高电压区域VH相对地布置， 电压产生模块，其产生施加到灯丝​​的负高电压。 这种构造防止了在反向壁中产生电场，从而抑制了碱离子从玻璃的析出。 因此，能够防止在灯丝，栅极，靶子等不同电位的电极之间的电位关系发生变化，能够防止在维持期望的X射线量时发生故障的故障，能够保持稳定的动作。

公开(公告)号：US09214311B2

公开(公告)日：2015-12-15

申请号：US13928255

申请日：2013-06-26

Applicant: TRIPLE RING TECHNOLOGIES, INC.

Inventor： Tobias Funk ,  Brian Patrick Wilfley

IPC: G01N23/04 ,  H01J35/08 ,  A61B6/00 ,  H01J35/14

CPC classification number: H01J35/08 ,  A61B6/4035 ,  A61B6/4064 ,  H01J35/14 ,  H01J2235/087

Abstract: The present invention pertains to a method and apparatus for generating a beam of charged particles, accelerating the charged particles toward a first side of a layer of X-ray target material configured to emit Bremsstrahlung radiation through a second side, receiving the Bremsstrahlung radiation on a first face of an additional layer of a different X-ray target material configured to emit characteristic fluorescence X-rays with energy above 20 keV through a second face, wherein the additional layer of X-ray target material is located within 3 mm of the second side of the first layer of material. The first X-ray target material can have an atomic number greater than 21.

Abstract translation: 本发明涉及一种用于产生带电粒子束的方法和装置，将带电粒子朝向被配置为通过第二侧发射Bre致辐射的X射线靶材料层的第一侧加速，在第二侧上接收Bre致辐射 配置为通过第二面发射能量大于20keV的特征荧光X射线的不同X射线靶材料的附加层的第一面，其中所述X射线靶材料的附加层位于第二面的3mm 侧面的第一层材料。 第一X射线靶材料的原子序数可以大于21。

公开(公告)号：US20150342014A1

公开(公告)日：2015-11-26

申请号：US14758779

申请日：2013-10-31

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Kejun Kang ,  Chuanxiang Tang ,  Ziran Zhao ,  Zhe Zhang

IPC: H05G1/32 ,  G01N23/04 ,  A61B6/03 ,  H05G1/10

CPC classification number: H05G1/32 ,  A61B6/032 ,  A61B6/4028 ,  A61B6/4275 ,  G01N23/046 ,  G01N2223/419 ,  H01J35/08 ,  H01J2235/087 ,  H05G1/10 ,  H05G2/00 ,  H05H7/18

Abstract: CT devices and methods thereof are disclosed. The CT device comprises a circular electron gun array including a plurality of electron guns, each of the electron guns is configured to emit electron beams along the radial direction of the circular electron gun array in sequence according to a predetermine pulse sequence; an acceleration cavity disposed inside of a circle on which the circular electron gun array is positioned, including a plurality of nested concentric coaxial cavities that operate in π mode for accelerating electron beams emitted from the respective electron guns of the circular electron gun array; a circular transmission target disposed inside of a circle on which the acceleration cavity is positioned and being bombarded by the accelerated electron beams to generate X-rays; and a circular detector configured to receive the X-rays after they have passed through an object to be detected.

Abstract translation: 公开了CT装置及其方法。 该CT设备包括圆形电子枪阵列，其包括多个电子枪，每个电子枪被配置为根据的预定脉冲序列，以发射电子束沿在序列中的圆形的电子枪阵列的径向方向上; 设置在其上定位有圆形电子枪阵列的圆的内部的加速腔，包括多个嵌套的同心同轴腔，其在“ 用于加速从圆形电子枪阵列的各个电子枪发射的电子束的模式; 设置在加速腔位于其上并被加速电子束轰击以产生X射线的圆内的圆形透射目标; 以及圆形检测器，被配置为在它们通过待检测物体之后接收X射线。

公开(公告)号：US09177755B2

公开(公告)日：2015-11-03

申请号：US14163486

申请日：2014-01-24

Applicant: Moxtek, Inc.

Inventor： Todd S. Parker ,  Steven D. Liddiard ,  Dave Reynolds

IPC: H01J35/24 ,  H01J35/10 ,  H01J35/14 ,  H01J35/28

CPC classification number: H01J35/24 ,  H01J35/08 ,  H01J35/10 ,  H01J35/14 ,  H01J35/16 ,  H01J35/28 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/087 ,  H01J2235/186

Abstract: A transmission x-ray tube comprising an end window hermetically sealed to a flexible coupling. The flexible coupling can allow the window to shift or tilt in one direction or another direction to allow an electron beam to impinge upon one region of the window or another region of the window.A method of utilizing different regions of an x-ray tube target by tilting an x-ray tube window at an acute angle with respect to an electron beam axis to cause an electron beam to impinge on a selected region of the window and tilting the window in a different direction to allow the electron beam to impinge on a different selected region of the window.

Abstract translation: 一种透射X射线管，包括密封到柔性联轴器的端窗。 柔性联接可以允许窗口在一个方向或另一个方向上移动或倾斜，以允许电子束撞击窗口的一个区域或窗口的另一区域。 一种通过使X射线管窗口相对于电子束轴倾斜为锐角来利用X射线管靶的不同区域的方法，以使电子束撞击在窗口的选定区域上并使窗口倾斜 在不同的方向上，以允许电子束撞击窗口的不同选定区域。

公开(公告)号：US20150311026A1

公开(公告)日：2015-10-29

申请号：US14440856

申请日：2013-10-24

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takeo Tsukamoto ,  Takao Ogura ,  Shuji Yamada ,  Yoichi Ikarashi ,  Nobuhiro Ito

IPC: H01J35/08 ,  G01N23/04 ,  C23C16/06 ,  H01J35/32

CPC classification number: H01J35/08 ,  C23C16/06 ,  G01N23/04 ,  H01J35/32 ,  H01J2235/081 ,  H01J2235/087

Abstract: The present invention relates to a transmission type target having a diamond base material as the transmissive base material. The transmission type target can inhibit the composition from varying with the drive history of the transmission type target and can inhibit the output of radiation from varying over a long time. The transmission type target includes a target layer containing a metal carbide constituted of at least one metal selected from the group consisting of molybdenum, tantalum, and tungsten and carbon; and a diamond base material supporting the target layer.

Abstract translation: 本发明涉及具有金刚石基材作为透射性基材的透射型靶。 传输类型目标可以抑制组合根据传输类型目标的驱动历史而变化，并且可以禁止长时间变化的辐射输出。 透射型靶包括含有由选自钼，钽，钨和碳中的至少一种金属构成的金属碳化物的靶层; 以及支撑目标层的金刚石基材。

公开(公告)号：US20150303022A1

公开(公告)日：2015-10-22

申请号：US14687749

申请日：2015-04-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shuji Yamada ,  Tadayuki Yoshitake ,  Yoichi Ikarashi ,  Takao Ogura ,  Takeo Tsukamoto

IPC: H01J35/08 ,  H01J35/16

CPC classification number: H01J35/08 ,  G21K1/02 ,  H01J35/16 ,  H01J2235/081 ,  H01J2235/087 ,  H01J2235/166 ,  H05G1/06

Abstract: The target includes a target layer configured to be irradiated with an electron to generate an X-ray and a support substrate configured to support the target layer. The support substrate includes a polycrystalline diamond and includes multiple structure planes having different area densities of plane orientations from one another. The target layer is supported by the support substrate at a structure plane with a smaller area density of the {101} plane than the area density of the {100} plane and the area density of the {111} plane.

Abstract translation: 目标包括配置为用电子照射以产生X射线的目标层和被配置为支撑目标层的支撑衬底。 支撑衬底包括多晶金刚石，并且包括具有彼此的平面取向的不同面积密度的多个结构平面。 目标层在{101}面的面积密度比{100}面的面积密度和{111}面的面积密度小的结构面支撑在支撑基板上。

公开(公告)号：US09053892B2

公开(公告)日：2015-06-09

申请号：US13976475

申请日：2010-12-30

Applicant: Sameh Dardona ,  Marcin Piech ,  Joseph V. Mantese ,  Max D. Allsworth

Inventor： Sameh Dardona ,  Marcin Piech ,  Joseph V. Mantese ,  Max D. Allsworth

IPC: G01T1/00 ,  H01J27/02 ,  H01J35/06 ,  H01J35/18 ,  G01T1/185 ,  H01J35/16

CPC classification number: H01J27/02 ,  G01T1/185 ,  H01J35/065 ,  H01J35/16 ,  H01J35/18 ,  H01J2235/06 ,  H01J2235/087 ,  H01J2235/186

Abstract: An illustrated example ionization device includes a pyroelectric electron accelerator that causes electrons to move away from the accelerator. A silicon target is positioned in a path of the electrons. X-ray radiation results from the electrons colliding with the target. In one example embodiment, the electrons moving between the accelerator and the target have energy up to 60 KeV and the target attenuates the energy so that the x-ray radiation has energy between 1 KeV and 3 KeV.

Abstract translation: 示出的示例性电离装置包括使电子远离加速器的热电子加速器。 硅靶位于电子的路径中。 X射线辐射是由与电子碰撞的电子产生的。 在一个示例实施例中，在加速器和目标之间移动的电子具有高达60KeV的能量，并且目标衰减能量，使得x射线辐射具有在1KeV和3KeV之间的能量。

公开(公告)号：US20150146848A1

公开(公告)日：2015-05-28

申请号：US14400703

申请日：2013-03-14

Applicant: THE GENERAL HOSPITAL CORPORATION

Inventor： Rajiv Gupta ,  Luis Fernando Velasquez-Garcia ,  Richard Lanza ,  Berthold KP Horn ,  Tayo Akinwande

IPC: G01N23/04 ,  A61B6/00 ,  G01V5/00

CPC classification number: H01J35/065 ,  A61B6/032 ,  A61B6/40 ,  A61B6/4007 ,  A61B6/405 ,  A61B6/4405 ,  A61B6/484 ,  G01N23/04 ,  G01V5/0016 ,  G01V5/0041 ,  G21K2207/005 ,  H01J35/025 ,  H01J35/04 ,  H01J35/045 ,  H01J35/12 ,  H01J35/14 ,  H01J35/18 ,  H01J2201/30449 ,  H01J2235/062 ,  H01J2235/068 ,  H01J2235/087 ,  H01J2235/186

Abstract: Described here is a method for performing phase contrast imaging using an array of independently controllable x-ray sources. The array of x-ray sources can be controlled to produce a distinct spatial pattern of x-ray radiation and thus can be used to encode phase contrast signals without the need for a coded aperture. The lack of coded aperture increases the flexibility of the imaging method. For instance, because a fixed, coded aperture is not required, the angular resolution of the imaging technique can be increased as compared to coded-aperture imaging. Moreover, the lack of a radioopaque coded aperture increases the photon flux that reaches the subject, thereby increasing the attainable signal-to-noise ratio.

Abstract translation: 这里描述了使用独立可控x射线源的阵列进行相位对比成像的方法。 可以控制x射线源的阵列以产生X射线辐射的不同的空间图案，并且因此可用于对相位差信号进行编码，而不需要编码孔径。 编码孔径的缺乏增加了成像方法的灵活性。 例如，由于不需要固定的编码孔径，与编码孔径成像相比，可以增加成像技术的角度分辨率。 此外，缺乏无辐射光编码孔径增加了到达对象的光子通量，从而增加了可达到的信噪比。

公开(公告)号：US09008268B2

公开(公告)日：2015-04-14

申请号：US13164440

申请日：2011-06-20

Applicant: Masahiko Okunuki ,  Makoto Sato ,  Osamu Tsujii ,  Takashi Ogura ,  Hisashi Namba

Inventor： Masahiko Okunuki ,  Makoto Sato ,  Osamu Tsujii ,  Takashi Ogura ,  Hisashi Namba

IPC: A61B6/00 ,  H01J35/06 ,  H05G1/60 ,  A61B6/03 ,  H01J35/08 ,  H01J35/18 ,  H05G1/70

CPC classification number: H01J35/065 ,  A61B6/032 ,  A61B6/4007 ,  A61B6/4028 ,  A61B6/4441 ,  A61B6/5241 ,  A61B6/547 ,  H01J35/06 ,  H01J35/08 ,  H01J35/18 ,  H01J2235/062 ,  H01J2235/064 ,  H01J2235/068 ,  H01J2235/087 ,  H05G1/70

Abstract: An X-ray imaging apparatus includes a multi X-ray source which includes a plurality of X-ray focuses to generate X-rays by irradiating X-ray targets with electron beams, a detector which detects X-rays which have been emitted from the multi X-ray source and have reached a detection surface, and a moving mechanism for moving the multi X-ray source within a plane facing the detection surface. The X-ray imaging apparatus acquires a plurality of X-ray detection signals from the detector by causing the multi X-ray source to perform X-ray irradiation while shifting the positions of a plurality of X-ray focuses which the detector has relative to the detection surface by moving the multi X-ray source using the moving mechanism. The apparatus then generates an X-ray projection image based on the plurality of X-ray detection signals acquired by the detector.

Abstract translation: 一种X射线摄像装置，具备：包含多个X射线焦点以通过用电子束照射X射线靶产生X射线的多X射线源，检测从X射线 多个X射线源并且已经到达检测表面;以及移动机构，用于在面向检测表面的平面内移动多个X射线源。 X射线成像装置从检测器取得多个X射线检测信号，使多个X射线源进行X射线照射，同时移动检测器的多个X射线焦点的位置相对于 通过使用移动机构移动多个X射线源的检测表面。 然后，该装置基于由检测器获取的多个X射线检测信号生成X射线投影图像。