公开(公告)号：US09589759B2

公开(公告)日：2017-03-07

申请号：US14614781

申请日：2015-02-05

Applicant: SHIMADZU CORPORATION

Inventor： Akihiro Miyaoka

IPC: H01J35/02 ,  H01J35/16 ,  H01J1/88 ,  H01J19/56 ,  H01J37/16 ,  H05G1/04 ,  A61B6/00 ,  H01J5/02 ,  H01J1/40 ,  H01J5/04 ,  H01J35/04 ,  H05G1/02 ,  H01J35/14 ,  H01J35/28

CPC classification number: H01J35/16 ,  A61B6/40 ,  A61B6/44 ,  A61B2560/0406 ,  H01J1/40 ,  H01J1/88 ,  H01J5/02 ,  H01J5/04 ,  H01J19/56 ,  H01J35/02 ,  H01J35/04 ,  H01J35/14 ,  H01J35/28 ,  H01J37/16 ,  H01J2235/083 ,  H01J2235/087 ,  H01J2235/16 ,  H01J2235/163 ,  H01J2235/186 ,  H05G1/02 ,  H05G1/04

Abstract: An X-ray generator is provided using a transmission type target having a long life span, where it is possible to change the point for generating X-rays on the surface of the target while maintaining the vacuum chamber in a high vacuum state. A portion of a vacuum chamber 1 that includes a target 2 is linked to a main body portion 1a of the chamber through a linking member 5 as a movable chamber portion 1b. A fixed anode 12 is provided between the target 2 and the electrode 10 at the final stage from among a group of electrodes 8, 9 and 10 for electrostatically accelerating and converging electrons from an electron source 7 and is fixed to the main body portion 1a of the chamber in order to prevent the form of the electrical field from changing when the movable chamber portion 1b is shifted.

Abstract translation: 使用寿命长的透射型靶设置X射线发生器，能够在将真空室保持在高真空状态的同时，改变在靶表面产生X射线的点。 包括目标2的真空室1的一部分通过作为可移动室部分1b的连接构件5连接到室的主体部分1a。 在一组电极8,9和10之间，在靶2和电极10之间设置固定阳极12，用于从电子源7静电加速和会聚电子，并固定到电极10的主体部分1a 该室为了防止当可动室部分1b移动时电场的形式改变。

公开(公告)号：US20160027606A1

公开(公告)日：2016-01-28

申请号：US14781404

申请日：2014-04-02

Applicant: HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF E.V.

Inventor： Frank BARTHEL

IPC: H01J35/14 ,  H01J35/08 ,  H05G1/02

CPC classification number: H01J35/14 ,  H01J35/08 ,  H01J35/30 ,  H01J2235/163 ,  H05G1/02

Abstract: A system for electron beam X-ray computer tomography, which requires no considerable axial extension of the electron emitter and substantially eliminates electron-optical beam guidance elements is provided by disposing an X-ray detector arc and the target around the examination cross-section within an irradiation plane, and radially introducing an electron beam generated in the electron beam generator into the magnetic flux region of one or more longitudinal coils from within or outside the coils and forcing the same onto a circular path by way of the magnetic field. By periodically changing the field strength, the radius of the circular path is increased, as a result of which the electron beam impinges on the target in a tangentially migrating focal spot. Radiography projections of the object located in the center of the system are recorded by the X-ray detector surrounding the target, the target and x-ray detector planes being with or without axial offset.

Abstract translation: 一种电子束X射线计算机断层摄影系统，其不需要电子发射器的相当大的轴向延伸并且基本上消除电子束引导元件，是通过将X射线检测器电弧和目标围绕检查横截面设置在 照射平面，并且将从电子束发生器中产生的电子束径向地引入到线圈内部或外部的一个或多个纵向线圈的磁通量区域中，并且通过磁场将其强制到圆形路径上。 通过周期性地改变场强，循环路径的半径增加，结果电子束在切向迁移的焦斑中撞击靶。 位于系统中心的物体的射线照相投影由围绕目标的X射线检测器记录，目标和X射线检测器平面具有或不具有轴向偏移。

公开(公告)号：US07991111B2

公开(公告)日：2011-08-02

申请号：US12882005

申请日：2010-09-14

Applicant: Peter Wraight ,  Arthur J. Becker ,  Joel L. Groves ,  Christian Stoller

Inventor： Peter Wraight ,  Arthur J. Becker ,  Joel L. Groves ,  Christian Stoller

IPC: G01N23/06 ,  H01J35/02

CPC classification number: H01J35/06 ,  H01J35/14 ,  H01J2235/0233 ,  H01J2235/06 ,  H01J2235/163 ,  H05G1/02 ,  H05G1/10

Abstract: An apparatus and method for determining the density and other properties of a formation surrounding a borehole using a high voltage x-ray generator. One embodiment comprises a stable compact x-ray generator capable of providing radiation with energy of 250 keV and higher while operating at temperatures equal to or greater than 125° C. In another embodiment, radiation is passed from an x-ray generator into the formation; reflected radiation is detected by a short spaced radiation detector and a long spaced radiation detector. The output of these detectors is then used to determine the density of the formation. In one embodiment, a reference radiation detector monitors a filtered radiation signal. The output of this detector is used to control at least one of the acceleration voltage and beam current of the x-ray generator.

Abstract translation: 一种用于使用高压x射线发生器确定围绕钻孔的地层的密度和其它性质的装置和方法。 一个实施例包括能够在等于或大于125℃的温度下工作时能够提供250keV以上能量的辐射的稳定的紧凑型X射线发生器。在另一个实施例中，辐射从X射线发生器通过地层 ; 反射辐射由短间隔的辐射检测器和长间隔的辐射检测器检测。 然后使用这些检测器的输出来确定地层的密度。 在一个实施例中，参考辐射检测器监视经滤波的辐射信号。 该检测器的输出用于控制x射线发生器的加速电压和射束电流中的至少一个。

公开(公告)号：US07876883B2

公开(公告)日：2011-01-25

申请号：US12384936

申请日：2009-04-10

Applicant: David O'Hara

Inventor： David O'Hara

IPC: H01J35/14 ,  H01J35/08 ,  H01J35/02 ,  H01J35/00

CPC classification number: G21K1/06 ,  A61B6/502 ,  G21K2201/067 ,  H01J35/08 ,  H01J35/16 ,  H01J2235/086 ,  H01J2235/163

Abstract: A conical anode X-ray source with a spot size approximately one tenth of the size of existing mammography devices. The source produces the same or higher radiance than the prior art. It also produces almost no high-energy Bremstrahlung. The electron beam is directed into a conical anode so that it strikes the reflecting surface at an angle which produces total internal reflection. The X-rays emitted via the reflection would ordinarily exit the small end of the conical anode in a diverging conical pattern—producing an undesirable “ring” configuration at the image plane. A homogenizing optic is therefore preferably added to the small end of the conical anode. The homogenizing optic is sized to reflect the X-rays emerging from the conical anode and thereby create a uniform “spot” source at the far end of the homogenizing optic.

Abstract translation: 锥形阳极X射线源，斑点尺寸约为现有乳房X线摄影装置尺寸的十分之一。 源产生与现有技术相同或更高的辐射度。 它也几乎没有产生高能量的Bremstrahlung。 电子束被引导到锥形阳极中，使得其以产生全内反射的角度撞击反射表面。 通过反射发射的X射线将通常以发散的锥形图案离开圆锥形阳极的小端，从而在图像平面产生不期望的“环”结构。 因此，均匀化光学器件优选地添加到锥形阳极的小端。 均匀化光学器件的大小可以反映从锥形阳极出射的X射线，从而在均匀化光学器件的远端产生均匀的“斑点”源。

公开(公告)号：US20100278308A1

公开(公告)日：2010-11-04

申请号：US12836946

申请日：2010-07-15

Applicant: Takashi Shimono

Inventor： Takashi Shimono

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J35/04 ,  H01J35/16 ,  H01J35/18 ,  H01J2235/06 ,  H01J2235/163 ,  H01J2235/18

Abstract: According to one embodiment, a distance from an X-ray tube central axis to an outer side surface of a cathode electron gun in a direction perpendicular to the longitudinal direction of a filament coil is made less than a distance from the X-ray tube central axis to an outer side surface of the cathode electron gun in the longitudinal direction of the filament coil, and a distance from the X-ray tube central axis to an X-ray radiation window in the direction perpendicular to the longitudinal direction of the filament coil is made less than a distance from the X-ray tube central axis to an X-ray radiation window in the longitudinal direction of the filament coil.

Abstract translation: 根据一个实施例，使得从垂直于灯丝线圈的纵向方向的方向到阴极电子枪的X射线管中心轴到外侧表面的距离小于距离X射线管中心 与阴极电子枪的长边方向的长边方向的长轴方向的距离，以及从与X线照射窗的长度方向垂直的方向与X射线管中心轴的距离 被制成小于从X射线管中心轴到X射线辐射窗沿长丝方向的距离。

公开(公告)号：US20100189223A1

公开(公告)日：2010-07-29

申请号：US12692496

申请日：2010-01-22

Applicant: Mark Eaton ,  Babu Chalamala ,  Mitall More

Inventor： Mark Eaton ,  Babu Chalamala ,  Mitall More

IPC: G21K5/04 ,  H05G1/30 ,  H05G2/00

CPC classification number: H01J35/065 ,  G21K1/025 ,  H01J35/08 ,  H01J35/116 ,  H01J35/14 ,  H01J35/16 ,  H01J2235/062 ,  H01J2235/068 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/163 ,  H01J2235/18 ,  H05G1/70

Abstract: An apparatus and method for the X-ray irradiation of materials is provided. This apparatus includes an irradiation chamber, a number of flat electromagnetic (X-ray) sources having a number of addressable cathode emitters, a support mechanism, a heat transfer system, a shielding system, and a process controller. A shielded portal within the shielding system allows access to an interior volume of the irradiation chamber. The electromagnetic sources are positioned on or embedded within interior surfaces of the irradiation chamber. These electromagnetic sources generate an electromagnetic flux, such as an X-ray flux, where this flux is used to irradiate the interior volume of the irradiation chamber and any materials placed therein. The operation of the electromagnetic sources and the number of addressable cathode emitters being controlled by the process controller. The materials placed within the interior of the chamber may be supported by a low attenuation support mechanism. This low attenuation support mechanism does not substantially reduce the X-ray flux intended to irradiate the materials placed within the interior volume of the irradiation chamber.

Abstract translation: 提供了用于材料的X射线照射的装置和方法。 该装置包括照射室，具有多个可寻址阴极发射体的多个扁平电磁（X射线）源，支撑机构，传热系统，屏蔽系统和过程控制器。 屏蔽系统内的屏蔽入口允许进入照射室的内部容积。 电磁源位于照射室的内表面上或嵌入辐射室的内表面内。 这些电磁源产生诸如X射线通量的电磁通量，其中该通量用于照射照射室的内部容积和放置在其中的任何材料。 电磁源的操作和可寻址阴极发射器的数量由过程控制器控制。 放置在室内部的材料可以由低衰减支撑机构支撑。 该低衰减支持机构基本上不降低用于照射放置在照射室的内部容积内的材料的X射线通量。

公开(公告)号：US07542549B2

公开(公告)日：2009-06-02

申请号：US11779752

申请日：2007-07-18

Applicant: Stanley D. Lesiak ,  Heinz H. Busta ,  Bruce M. Zwicker

Inventor： Stanley D. Lesiak ,  Heinz H. Busta ,  Bruce M. Zwicker

IPC: H01J35/14 ,  H01J35/06 ,  H01J35/30

CPC classification number: H01J35/065 ,  G21K5/02 ,  H01J35/08 ,  H01J2235/062 ,  H01J2235/068 ,  H01J2235/086 ,  H01J2235/163

Abstract: An improved x-ray generation system produces a converging or diverging radiation pattern particularly suited for substantially cylindrical or spherical treatment devices. In an embodiment, the system comprises a closed or concave outer wall about a closed or concave inner wall. An electron emitter is situated on the inside surface of the outer wall, while a target film is situated on the outside surface of the inner wall. An extraction voltage at the emitter extracts electrons which are accelerated toward the inner wall by an acceleration voltage. Alternately, electron emission may be by thermionic means. Collisions of electrons with the target film causes x-ray emission, a substantial portion of which is directed through the inner wall into the space defined within. In an embodiment, the location of the emitter and target film are reversed, establishing a reflective rather than transmissive mode for convergent patterns and a transmissive mode for divergent patterns.

Abstract translation: 改进的X射线产生系统产生特别适用于基本上圆柱形或球形处理装置的会聚或发散辐射图。 在一个实施例中，系统包括围绕封闭或凹入的内壁的封闭或凹入的外壁。 电子发射体位于外壁的内表面上，而靶膜位于内壁的外表面上。 发射极处的提取电压提取通过加速电压向内壁加速的电子。 或者，电子发射可以通过热电子方式。 电子与目标膜的碰撞导致x射线发射，其大部分被引导通过内壁进入限定在其内的空间。 在一个实施例中，发射器和目标膜的位置被反转，建立用于会聚图案的反射而不是透射模式和用于发散图案的透射模式。

公开(公告)号：US20090052625A1

公开(公告)日：2009-02-26

申请号：US11913970

申请日：2006-05-11

Applicant: Hiroyuki Nose ,  Daisuke Ishida ,  Namio Kaneko ,  Hisaharu Sakae ,  Mitsuru Uesaka ,  Atsushi Fukasawa ,  Katsuhiro Dobashi

Inventor： Hiroyuki Nose ,  Daisuke Ishida ,  Namio Kaneko ,  Hisaharu Sakae ,  Mitsuru Uesaka ,  Atsushi Fukasawa ,  Katsuhiro Dobashi

IPC: H01J35/10 ,  H01J35/08

CPC classification number: A61N5/10 ,  A61B6/00 ,  A61B6/4092 ,  H01J35/14 ,  H01J35/16 ,  H01J35/28 ,  H01J2235/08 ,  H01J2235/086 ,  H01J2235/10 ,  H01J2235/163 ,  H05G2/00 ,  H05H6/00

Abstract: There is disclosed a device including: an electron beam generation device 10 which accelerates a pulse electron beam 1 to transmit the beam through a predetermined rectilinear orbit 2; a laser generation device 20 which generates a pulse laser light 3; a laser light introduction device 30 which introduces the pulse laser light 3 onto the rectilinear orbit 2 so as to collide with the pulse electron beam 1; a metal target 42 which generates a particular X-ray 5 by collision with the pulse electron beam 1: and a target moving device 40 capable of moving the metal target between a collision position 2a on the rectilinear orbit and a retreat position out of the orbit. A collision surface of the metal target 42 is positioned spatially at the same position as that of the collision point 2a. At the retreat position of the metal target, the pulse electron beam 1 collides with the pulse laser light 3 to generate a monochromatic hard X-ray 4. At the collision position of the metal target 42, the pulse electron beam 1 collides with the metal target 42 to generate the particular X-ray 5 from the same light source position 2a.

Abstract translation: 公开了一种装置，包括：电子束产生装置10，其加速脉冲电子束1以将光束穿过预定的直线轨道2; 产生脉冲激光3的激光产生装置20; 激光引入装置30，其将脉冲激光3引入到直线轨道2上以与脉冲电子束1碰撞; 通过与脉冲电子束1碰撞而产生特定X射线5的金属靶42和能够将金属靶移动到直线轨道上的碰撞位置2a和轨道之间的退避位置的目标移动装置40 。 金属靶42的碰撞面在空间上位于与碰撞点2a相同的位置。 在金属靶的退避位置，脉冲电子束1与脉冲激光3碰撞，生成单色硬X射线4.在金属靶42的碰撞位置，脉冲电子束1与金属 目标42从相同的光源位置2a产生特定的X射线5。

公开(公告)号：US07447298B2

公开(公告)日：2008-11-04

申请号：US11241214

申请日：2005-09-30

Applicant: Heinz H. Busta ,  Stanley D. Lesiak

Inventor： Heinz H. Busta ,  Stanley D. Lesiak

IPC: H01J35/04

CPC classification number: C08F2/54 ,  A23L3/263 ,  A61L2/08 ,  A61L2/082 ,  C02F1/30 ,  C08K3/04 ,  H01J35/04 ,  H01J35/065 ,  H01J35/12 ,  H01J35/16 ,  H01J2235/068 ,  H01J2235/087 ,  H01J2235/163

Abstract: A novel x-ray treatment system utilizes one or more large area flat panel sources of x-ray radiation directed into a target zone. A target substance within the target zone is irradiated with x-ray radiation from the one or more flat panel sources, reducing the biological effects of a contaminant presence therein. The flat panel source comprises an electron source, an electron accelerator, and an electron target medium. The electron source may emit electrons either via field emission or thermionic emission. The x-ray source may operate in transmissive, reflective, or combined transmissive/reflective mode. The use of large area flat panel x-ray sources in the inventive systems allows for decreased installation and operational costs as well as increased efficiency.

Abstract translation: 一种新型的X射线处理系统利用一个或多个大面积平板的X射线辐射源引导到目标区域。 目标区域内的目标物质被来自一个或多个平板光源的x射线辐射照射，减少了其中污染物存在的生物效应。 平板源包括电子源，电子加速器和电子目标介质。 电子源可以通过场发射或热离子发射发射电子。 x射线源可以以透射，反射或组合透射/反射模式工作。 在本发明的系统中使用大面积平板X射线源允许降低安装和操作成本以及提高效率。

公开(公告)号：US06856671B2

公开(公告)日：2005-02-15

申请号：US10295859

申请日：2002-11-18

Applicant: Yutaka Ochiai ,  Tutomu Inazuru

Inventor： Yutaka Ochiai ,  Tutomu Inazuru

IPC: H01J35/08 ,  H01J35/02 ,  H01J35/16 ,  H05G1/02 ,  H05G1/06 ,  G21G4/00

CPC classification number: H05G1/06 ,  H01J35/02 ,  H01J35/16 ,  H01J2235/163 ,  H05G1/02

Abstract: An x-ray emitting window is formed at a front end face, and a taper surface tilted with respect to the x-ray emitting direction is formed near the emitting window, whereby an object to be inspected can be prevented from abutting against the front end face even if the object is pivoted about an axis intersecting the emitting direction while the object is disposed closer to the x-ray emitting window. As a consequence, while the object is disposed closer to the x-ray emitting position, the orientation of the object can be changed. Therefore, when inspecting the internal structure of the object and the like by irradiating the object with x-rays and detecting the x-rays transmitted through the object, not only a magnified penetration image of the object with a high magnification rate is obtained, but also the internal structure of the object and the like can be verified in detail by changing the orientation of the object.

Abstract translation: X射线发射窗形成在前端面，并且在发射窗附近形成相对于x射线发射方向倾斜的锥形表面，由此可以防止被检查物体抵靠前端 即使物体绕着与发射方向相交的轴线枢转，同时物体靠近X射线发射窗口设置。 结果，当物体设置得更靠近x射线发射位置时，可以改变物体的取向。 因此，当通过用X射线照射物体并检测透过物体的x射线来检查物体等的内部结构时，不仅获得了具有高放大率的物体的放大穿透图像，而且 也可以通过改变物体的取向来详细地验证物体等的内部结构。