公开(公告)号：EP3218907A1

公开(公告)日：2017-09-20

申请号：EP15859868.0

申请日：2015-11-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： KIM, Dong-hwan

IPC: G21K1/02 ,  A61B6/08

CPC classification number: A61B6/4417 ,  A61B6/06 ,  A61B6/08 ,  A61B6/4405 ,  A61B6/461 ,  A61B6/467 ,  A61B6/54 ,  A61B6/542 ,  A61B6/587 ,  G03B21/208 ,  G03B21/28 ,  G03B29/00 ,  G21K1/04 ,  H01J35/00

Abstract: Provided is an X-ray photographing apparatus including an X-ray source for generating and irradiating an X-ray; a collimator for controlling an X-ray photographing area to which an X-ray is irradiated by the X-ray source; a projector for generating and projecting a visible ray image by using image signals; a reflection mirror for reflecting the visible ray image projected by the projector to an X-ray photographing area; and a main controller for controlling the projector to match a light irradiation field corresponding to the visible ray image projected to the X-ray photographing area to the X-ray irradiation field.

Abstract translation: 提供一种X射线摄影装置，其包括用于生成并照射X射线的X射线源; 用于控制由X射线源照射X射线的X射线照相区域的准直器; 投影仪，用于通过使用图像信号来生成并投影可见光图像; 反射镜，用于将投影仪投影的可见光图像反射到X射线照相区域; 以及主控制器，用于控制投影仪将与投影到X射线照相区域的可见光图像相对应的光照射场与X射线照射场匹配。

公开(公告)号：EP2755557A2

公开(公告)日：2014-07-23

申请号：EP12832081.9

申请日：2012-08-14

Applicant: American Science & Engineering, Inc.

Inventor： AL-KOFAHI, Omar ,  ROTHSCHILD, Peter, J.

IPC: A61B6/00 ,  G01N23/02

CPC classification number: G21K1/043 ,  G01N23/06 ,  H01J35/00

Abstract: An apparatus for forming a beam of energetic particles and for scanning the beam of particles with respect to an inspected object. The apparatus has a source of energetic particles characterized by an effective beam origin and a rotating hoop having at least one aperture, such that the effective beam origin of the source is closer to the inspected object than the axis of rotation of the rotating hoop. A collimating structure disposed interior to the rotating hoop collimates emission by the source into a fan beam prior to impinging on the rotating hoop. In some embodiments, the effective beam origin may be moved with respect to the axis of rotation of the hoop.

公开(公告)号：EP1462794B1

公开(公告)日：2007-11-07

申请号：EP03257992.2

申请日：2003-12-18

Applicant: Oxford Diffraction Limited

Inventor： Kucharczyk, Damian

IPC: G01N23/00 ,  H01J35/00 ,  H05G1/04

CPC classification number: B82Y10/00 ,  G21K2201/061 ,  H01J35/00 ,  H05G1/04

公开(公告)号：EP1758132A1

公开(公告)日：2007-02-28

申请号：EP05018216.1

申请日：2005-08-22

Applicant: Unisantis Europe GmbH

Inventor： Baumann, Thomas

IPC: G21K1/06 ,  H01J35/00

CPC classification number: G21K1/06 ,  H01J35/00

Abstract: A positioning technique for aligning an X-ray lens (28) is described. A positioning apparatus (16) comprises a lens mounting component (44) and a positioning component (42). The positioning component (42) includes at least one goniometer stage (64, 66) having a centre of rotation that substantially coincides with the X-ray emitting portion (36) ("hot spot") of the X-ray source (12). The provision of one or more goniometer stages (64, 66) and, if required, one or more additional translation stages (60, 62) facilitates the adjustment of the X-ray lens (28) and makes the adjustment more intuitive.

Abstract translation: 描述了一种用于对准X射线透镜（28）的定位的技术。 的定位设备（16）包括透镜安装部件（44）和定位部件（42）。 定位件（42）包括：具有旋转中心的至少一个测角器台（64,66）做基本与X射线发射的X射线源的部分（36）（“热点”）（12）相一致 ， 一个或多个测角器级（64，66）和，如果需要的话，一个或多个附加的翻译级（60，62）的设置有利于透视透镜（28）的调整，使调整更加直观。

公开(公告)号：EP1146542A1

公开(公告)日：2001-10-17

申请号：EP01300568.1

申请日：2001-01-23

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Lifshin,Eric ,  Smentkowski, Amy Linsebigler ,  Salasoo, Lembit ,  Choudhury, Subhasish Roy ,  Morris, William Guy

IPC: H01J35/14

CPC classification number: H01J35/00 ,  H01J35/14

Abstract: An X-ray tube assembly (10) includes an anode (14), a cathode (12), and an X-ray transparent window (16). The anode (14) includes an X-ray-producing target (18) having a surface (20). The cathode (14) has an electron-beam axis (22) which intersects the target surface (20) at a focal point (24) and which is oriented at a first angle, (26) with respect to the target surface (20), of between and including fifteen and sixty degrees. The window (16) includes a surface (28) having a center point (30). A line between the focal and center points makes a second angle, with respect to the target surface (20), which is less than the first angle. A method for producing X-rays employs these angles.

Abstract translation: 一种X射线管组件（10）包括设置在所述阳极（14），阴极（12），和透明的透视窗（16）。 阳极（14）包括在X射线产生靶（18），其具有表面（20）。 阴极（14）具有其上在焦点处（24）的靶表面（20）相交的电子束轴（22）和所有被以第一角度（26）相对于所述靶表面取向（20） 中，15以及包括与60度之间。 窗口（16）包括一个表面（28）具有中心点（30）。 焦点和中心点之间的线，使第二角度，相对于所述目标表面（20）的所有其小于所述第一角度。 一种用于产生X射线的方法采用合成角度。

公开(公告)号：EP0147009B1

公开(公告)日：1989-12-06

申请号：EP84306270.4

申请日：1984-09-13

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Ramamurti, Krishnamurti

IPC: H01J35/00 ,  H01J35/24 ,  H01J3/02

CPC classification number: H01J35/065 ,  H01J35/00 ,  H01J35/24

公开(公告)号：EP0244504A3

公开(公告)日：1989-05-10

申请号：EP86111572.3

申请日：1986-08-21

Applicant: SHIMADZU CORPORATION

Inventor： Soezima, Hiroyoshi

IPC: H01J35/00

CPC classification number: G21K7/00 ,  G21K1/06 ,  H01J35/00

Abstract: An X-ray source comprises a thin film X-ray target (22) for generating X-rays in response to the application of electron beams, and a capillary tubular element (20) for allowing the X-rays to pass. The capillary tubular element (20) has such a diameter that the beams of the X-rays impinging on the inner surfaces of the capillary tubular element (20) are totally reflected. Additionally, a thin film (24) is provided for absorbing the electron beams, but allowing the X-rays to penetrate.

公开(公告)号：EP0127983A3

公开(公告)日：1986-09-17

申请号：EP84303494

申请日：1984-05-23

Applicant: IMATRON INC.

Inventor： Rand, Roy Edward

IPC: H01J35/14 ,  A61B06/02

CPC classification number: A61B6/032 ,  A61B6/4028 ,  H01J35/00 ,  H01J35/14

Abstract: A scanning electron beam computed tomography scanner includes means defining a vacuum chamber (16), means (21, 22) for producing a space-charge limited electron beam (24) at one location in the chamber (16) and for directing it to a second location therein, and an elongate target (26) of the type which produces X-rays as a result of the impingement thereon by the electron beam (24). The scanner also includes an arrangement (42) at the second location for causing the beam (24) to scan along the length of the target (26) so as to impinge on the latter at all points along its length in order to cause X-rays to be produced by and emanate from the target (26). This arrangement includes means, specifically differential focal strength electron beam optics, for reducing the convergence of the electron beam (24) in the radial plane, at any instant, while maintaining the position of the waist of the beam (24) in the scan plane at the location of the target (26), thus reducing the mutual repulsion of the electrons in the beam and decreasing the azimuthal width of the electron beam spot. This also decreases the azimuthal width of X-ray beam effective focal spot and thereby improvesthe resolution of the scanner. The increased radial size of the electron beam spot is compensated by orienting the target (26) relative to the electron beam (24) in a specific way so that the axial width of the X-ray effective focal spot is independently controlled.

Abstract translation: 扫描电子束计算机断层摄影扫描仪包括限定真空室（16）的装置，用于在腔室（16）中的一个位置处产生空间电荷受限电子束（24）的装置（21,22），并将其引导到 以及由于电子束（24）在其上撞击而产生X射线的细长靶（26）。 扫描仪还包括在第二位置处的装置（42），用于使光束（24）沿着靶（26）的长度扫描，以便沿其长度的所有点撞击光束（24），以便使X射线 由靶（26）产生并发射的光线。 这种布置包括特别是差分焦点强度电子束光学器件，用于在任何时刻减小电子束（24）在径向平面中的会聚，同时保持光束（24）的腰部在扫描平面中的位置 在目标（26）的位置处，因此减小了电子束中的电子的相互排斥并降低了电子束点的方位角宽度。 这也降低了X射线束有效焦点的方位角宽度，从而提高了扫描仪的分辨率。 通过以特定方式相对于电子束（24）定向靶（26）来补偿电子束点的径向尺寸的增加，使得X射线有效焦斑的轴向宽度被独立地控制。

公开(公告)号：EP0107451A3

公开(公告)日：1986-03-19

申请号：EP83306222

申请日：1983-10-13

Applicant: IMATRON INC.

Inventor： Rand, Roy Edward

IPC: H01J35/00 ,  H01J03/40

CPC classification number: H01J35/00

Abstract: An electron beam production and control assembly especially suitable for use in producing X-rays in a computed tomography (CT) X-ray scanning system is disclosed herein along with its method of operation. This assembly produces its electron beam within a vacuum-sealed housing chamber which is evacuated of internal gases, except inevitably for small amounts of residual gas. The electron beam is produced by suitable means within the chamber and directed along a path therethrough from the chamber's rearwardmost end to its forwardmost end whereby to impinge on a suitable target for producing the necessary X-rays. Since there is residual gas within the chamber, the electrons of the beam will interact with it and thereby produce positive ions which have the effect of neutralizing the space charge of the electron beam. However, there are a number of differentiel arrangements disclosed herein which form part of the overall assembly for acting on these ions and reducing the neutralizing effectthey would otherwise have on the beam.

公开(公告)号：EP0101043A2

公开(公告)日：1984-02-22

申请号：EP83107822.5

申请日：1983-08-08

Applicant: HELIONETICS, INC.

Inventor： Levatter, Jeffrey I.

IPC: H01J3/02

CPC classification number: H01J3/021 ,  H01J35/00 ,  H01S3/09775

Abstract: A method and apparatus for generating an electron beam using a new and improved plasma cathode system, the electron beam being suitable for use, by way of example, in large area pulsed x-ray devices of the type used for preionization of the discharge volume in certain lasers. The plasma cathode includes an electrically conductive member 12, 17 surrounded by an insulating sleeve 11 with an outer electrically conductive member 13, the first-mentioned member 12, 17 and a remote anode 16 being at ground potential, while the outer member 13 is maintained at a high negative potential relative to the first-mentioned member 12, 17 and the anode 16.

Abstract translation: 一种使用新的和改进的等离子体阴极系统产生电子束的方法和装置，该电子束适用于例如在用于放电容量前置化的类型的大面积脉冲X射线装置中 某些激光 等离子体阴极包括由具有外部导电构件13的绝缘套筒11，首先提到的构件12,17和远程阳极16处于地电位的导电构件12,17，而外部构件13被保持 相对于第一提到的构件12,17和阳极16处于高负电位。