公开(公告)号：US10020157B2

公开(公告)日：2018-07-10

申请号：US15717364

申请日：2017-09-27

Applicant: NIKON METROLOGY NV

Inventor： Roger Hadland

IPC: H01J35/10 ,  H01J35/02 ,  H01J29/48 ,  F16C33/76 ,  H02M1/32 ,  H05G1/12 ,  H02M7/10 ,  H01J35/04 ,  F16J15/16 ,  H01J35/16 ,  F16C35/04

CPC classification number: H01J35/025 ,  F16C33/768 ,  F16C35/042 ,  F16J15/16 ,  H01J29/48 ,  H01J35/04 ,  H01J35/06 ,  H01J35/101 ,  H01J35/106 ,  H01J35/108 ,  H01J35/116 ,  H01J35/16 ,  H01J37/065 ,  H01J2235/0236 ,  H01J2235/083 ,  H01J2235/086 ,  H01J2235/1046 ,  H01J2235/1204 ,  H01J2235/1262 ,  H01J2235/20 ,  H01J2237/2482 ,  H02M1/32 ,  H02M7/106 ,  H05G1/12

Abstract: Disclosed herein are a high-voltage generator 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, 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 computerized tomography. In particular, the high-voltage generator includes a shield electrode electrically connected intermediate of a first voltage multiplier and a second voltage multiplier. The electron beam apparatus includes control photodetectors and photo emitters having a transparent conductive shield arranged therebetween. The rotary vacuum seal includes a pumpable chamber at a position intermediate between high-pressure and low-pressure ends of a bore for a rotating shaft. The rotary target assembly is configured such that when a torque between a bearing housing and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target has a plurality of target plates 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 maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.

公开(公告)号：US20180033581A1

公开(公告)日：2018-02-01

申请号：US15717393

申请日：2017-09-27

Applicant: NIKON METROLOGY NV

Inventor： Roger HADLAND

IPC: H01J35/02 ,  H01J29/48 ,  F16C35/04 ,  F16C33/76 ,  F16J15/16 ,  H05G1/12 ,  H02M7/10 ,  H01J35/10 ,  H01J35/04 ,  H01J35/16 ,  H02M1/32

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 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, 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 electrically connected intermediate of a first voltage multiplier and a second voltage multiplier. The electron beam apparatus includes control photodetectors and photo emitters having a transparent conductive shield arranged therebetween. The rotary vacuum seal includes a pumpable chamber at a position intermediate between high-pressure and low-pressure ends of a bore for a rotating shaft. The rotary target assembly is configured such that when a torque between a bearing housing and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target has a plurality of target plates 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 maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.

公开(公告)号：US20170162360A1

公开(公告)日：2017-06-08

申请号：US15373316

申请日：2016-12-08

Applicant: ACERDE

Inventor： Guillaume Huot ,  Ariane Petitjean ,  Pierre-Olivier Robert ,  Gregory Francart ,  Hervé Poirel

IPC: H01J35/10 ,  C23C16/02 ,  C23C16/06

CPC classification number: H01J35/10 ,  C23C16/0272 ,  C23C16/042 ,  C23C16/06 ,  H01J9/50 ,  H01J2235/083 ,  H01J2235/085 ,  H01J2235/086

Abstract: Process for treating and receptacle for confining an anode, wherein the anode is placed in a confining receptacle that envelops this anode while leaving uncovered an annular coating zone of a frontal face of this anode, which is defined by an aperture of the receptacle; in order to carry out a least one operation for treating said annular coating zone, implementing at least one treating gas.

公开(公告)号：US20170018392A1

公开(公告)日：2017-01-19

申请号：US15131039

申请日：2016-04-18

Applicant: NanoRay Biotech Co., Ltd.

Inventor： Chi-Chieh Cheng

IPC: H01J35/08 ,  H01J35/06 ,  H01J35/14 ,  H05G1/32

CPC classification number: H01J35/08 ,  G21K1/10 ,  H01J35/116 ,  H01J35/14 ,  H01J2235/08 ,  H01J2235/081 ,  H01J2235/083 ,  H01J2235/086 ,  H01J2235/088

Abstract: A composite target is provided and is interacted with an electron to generate an X-ray, and an energy of the electron can be changed by controlling a tube voltage at least. The composite target includes a target body and an interposing layer which is connected with the target body. The interposing layer moves a highest peak of an energy spectrum of the X-ray toward a high energy direction. The interposing layer may be a single metal or a metal mixture. Not only a low energy photon of the X-ray can be filtered by the interposing layer, but also a distribution of the low energy photon of the X-ray can be increased by increasing a thickness of the interposing layer. As the tube voltage is enhanced, an amount of a high energy photon of the X-ray generated is dramatically increased. An X-ray tube containing the above composite target is also provided.

Abstract translation: 提供复合靶并且与电子相互作用以产生X射线，并且可以通过至少控制管电压来改变电子的能量。 复合目标包括与目标体连接的目标体和中介层。 插入层将X射线的能谱的最高峰向高能方向移动。 中间层可以是单一金属或金属混合物。 X射线的低能量光子不仅可以通过中介层进行滤光，而且可以通过增加中间层的厚度来增加X射线的低能量光子的分布。 随着管电压的增加，所产生的X射线的高能量光子的量显着增加。 还提供了含有上述复合靶的X射线管。

公开(公告)号：US20110211676A1

公开(公告)日：2011-09-01

申请号：US12672306

申请日：2008-08-04

Applicant: Ralf Dorscheid ,  Gereon Vogtmeier ,  Rainer Pietig

Inventor： Ralf Dorscheid ,  Gereon Vogtmeier ,  Rainer Pietig

IPC: H01J35/08 ,  C23C14/30 ,  C23C14/14 ,  B05C9/12

CPC classification number: H01J35/08 ,  H01J2235/083 ,  H01J2235/085

Abstract: A method and an apparatus for locally applying material to the surface of an anode of an X-ray source as well as a corresponding anode is presented. Anode material such as a repair material for filling a recess (121) in an X-ray emitting surface (115) is applied to the X-ray emitting surface of an anode (101). The location where such material is to be applied may be detected using a laser beam (133). The applied repair material including particles (41) of anode material such as tungsten, rhenium or molybdenum, is subsequently locally sintered using a high-energy laser beam (151). The sintered material may then be melted using a high-energy electron beam (163). Using such method, a damaged surface of an anode may be locally repaired. Alternatively, structures of different anode materials or of protrusions having different levels can be provided on the X-ray emitting surface (115) in order to selectively manipulate the X-ray emitting characteristics of the anode (101).

Abstract translation: 提出了一种用于将材料局部施加到X射线源的阳极表面以及相应的阳极的方法和装置。 向阳极（101）的X射线发射面施加阳极材料，例如用于填充X射线发射表面（115）中的凹部（121）的修复材料。 可以使用激光束（133）来检测施加这种材料的位置。 随后使用高能激光束局部烧结包括诸如钨，铼或钼的阳极材料的颗粒（41）的施加的修复材料。 然后可以使用高能电子束（163）熔化烧结材料。 使用这种方法，可以局部地修复阳极损坏的表面。 或者，可以在X射线发射表面（115）上提供不同阳极材料或具有不同水平的突起的结构，以选择性地操纵阳极（101）的X射线发射特性。

公开(公告)号：US20110007872A1

公开(公告)日：2011-01-13

申请号：US12651010

申请日：2009-12-31

Applicant: Gregory Alan Steinlage ,  Michael Scott Hebert

Inventor： Gregory Alan Steinlage ,  Michael Scott Hebert

IPC: G01N23/04 ,  H01J35/08 ,  H01J35/00 ,  B23P6/00

CPC classification number: H01J35/10 ,  H01J2235/083 ,  H01J2235/1204 ,  H01J2235/1225 ,  Y10T29/4973

Abstract: An x-ray tube target and method of repairing a damaged x-ray tube target. The x-ray tube target includes an original substrate and a portion of the original substrate that includes a new portion of a substrate and a new target track that is attached to a void in the original substrate. The method includes removal and replacement of damaged materials on used anode targets of x-ray tubes, thereby enabling recovery of used anode targets without the use of expensive and time consuming layer deposition methods. The method also avoids the high costs and long development cycles associated with known repair and refabrication methods for anode targets of x-ray tubes.

Abstract translation: x射线管靶和修复损坏的X射线管靶的方法。 X射线管靶包括原始衬底和原始衬底的包括衬底的新部分的部分和附着到原始衬底中的空隙的新的靶轨迹。 该方法包括在X射线管的使用的阳极靶上移除和更换损坏的材料，从而能够在不使用昂贵且耗时的层沉积方法的情况下回收使用的阳极靶。 该方法还避免了与用于X射线管的阳极靶的已知修复和重新制造方法相关联的高成本和长的开发周期。

公开(公告)号：US20100027754A1

公开(公告)日：2010-02-04

申请号：US12534907

申请日：2009-08-04

Applicant: Eberhard Lenz

Inventor： Eberhard Lenz

IPC: H01J35/10 ,  B23K31/02 ,  B23K1/20 ,  H01J9/00

CPC classification number: H01J35/10 ,  H01J2235/081 ,  H01J2235/083 ,  H01J2235/086 ,  H01J2235/1204 ,  H01J2235/1291 ,  H01J2235/1295

Abstract: A rotating anode plate for rotating anode x-ray tubes, has a curved disc to be attached positively on a rotation center. The curved disc is formed of a material with high thermal shock resistance that is creep-resistant and simultaneously highly heat-conductive. Particularly suitable materials are ceramics made of silicon carbide (SiC) or alloys made of molybdenum-titanium-zirconium (TZM).

Abstract translation: 用于旋转阳极x射线管的旋转阳极板具有在旋转中心上被正确地附着的弯曲盘。 弯曲盘由耐热冲击性高的材料形成，具有抗蠕变性，同时具有高导热性。 特别合适的材料是由碳化硅（SiC）或由钼 - 钛 - 锆（TZM）制成的合金制成的陶瓷。

公开(公告)号：US20080181366A1

公开(公告)日：2008-07-31

申请号：US11803295

申请日：2007-05-14

Applicant: Rajan Bamola ,  Albert Sickinger

Inventor： Rajan Bamola ,  Albert Sickinger

IPC: H01J35/10 ,  C23C4/08

CPC classification number: C23C4/02 ,  C23C4/01 ,  C23C4/08 ,  C23C4/134 ,  H01J35/10 ,  H01J2235/081 ,  H01J2235/083 ,  H01J2235/1204

Abstract: This invention involves the application of dense, metallurgically bonded deposits of tungsten and tungsten rhenium coatings onto preformed based x-ray anodes to be used as focal tracks. The coatings are applied by low pressure DC plasma spraying. The invention also includes heat treatments that further densify the as-applied coatings improving their suitability for use as focal tracks.

Abstract translation: 本发明涉及将钨和钨铼涂层的致密的，冶金结合的沉积物应用于预先形成的基于X射线阳极以用作焦点轨迹。 涂层通过低压直流等离子喷涂施加。 本发明还包括进一步致密涂覆的涂层的热处理，改善了其作为焦点轨迹的适用性。

公开(公告)号：US07321653B2

公开(公告)日：2008-01-22

申请号：US11161778

申请日：2005-08-16

Applicant: Ron K. Hockersmith ,  Michael Scott Hebert

Inventor： Ron K. Hockersmith ,  Michael Scott Hebert

IPC: H01J35/10

CPC classification number: H01J35/101 ,  H01J2235/083 ,  H01J2235/086 ,  H01J2235/1013 ,  H01J2235/1295

Abstract: An x-ray target assembly is provided comprising a center hub element affixed to a drive shaft and an outer disc including a plurality of tab extensions removably engaging the periphery of the center hub element. A target element is mounted on an upper outer disc surface.

Abstract translation: 提供了一种X射线靶组件，其包括固定到驱动轴的中心轮毂元件和包括可拆卸地接合中心轮毂元件的周边的多个翼片延伸部的外盘。 目标元件安装在上外盘表面上。

公开(公告)号：US20030006269A1

公开(公告)日：2003-01-09

申请号：US09900252

申请日：2001-07-06

Applicant: General Atomics

Inventor： Mervyn H. Horner ,  Paul W. Trester ,  Peter G. Valentine

IPC: B23K035/12 ,  B23K031/02

CPC classification number: H01J9/02 ,  B23K35/001 ,  B23K35/005 ,  B23K35/327 ,  C04B35/5622 ,  C04B35/5626 ,  C04B35/5805 ,  C04B37/00 ,  C04B37/026 ,  C04B2235/3813 ,  C04B2235/3839 ,  C04B2235/3847 ,  C04B2235/404 ,  C04B2235/422 ,  C04B2235/6581 ,  C04B2235/9607 ,  C04B2237/122 ,  C04B2237/36 ,  C04B2237/363 ,  C04B2237/385 ,  C04B2237/403 ,  C04B2237/525 ,  H01J35/08 ,  H01J2235/083

Abstract: Reaction-brazing of tungsten or molybdenum metal bodies to carbonaceous supports enables an x-ray generating anode to be joined to a preferred lightweight substrate. Complementary surfaces are provided on a dense refractory metal body and a graphite or a carbon-carbon composite support. A particulate braze mixture comprising Hf or Zr carbide, Mo or W boride, Hf or Zr powder and Mo or W powder is coated onto the support surface, and hafnium or zirconium foil may be introduced between the braze mixture and the refractory metal body complementary surface. Reaction-brazing is carried out at or near the eutectic point of the components, which may be influenced to some extent by the presence of carbon and boride. Heating to about 1865null C. for a Mo/Hf combination creates a thin, dense, strong braze that securely joins the two bodies and creates a thin barrier of carbide and boride microphases near and along the interface with the carbon support that diminishes carbon diffusion into the metal body during extended exposures at elevated temperatures (above those presently used in x-ray tubes), even well above the eutectoid temperature.