公开(公告)号：US08280008B2

公开(公告)日：2012-10-02

申请号：US12681055

申请日：2008-10-01

Applicant: Hans-Henning Reis ,  Dieter Melzer

Inventor： Hans-Henning Reis ,  Dieter Melzer

IPC: H01J35/10

CPC classification number: H01J35/108 ,  H01J2235/081

Abstract: Described is an X-ray rotating anode plate having a base and X-ray active layer having the described acceptable properties and a method for producing same. The base comprises carbon nanoparticles in quasi-homogeneous spatial distribution. Carbon nanoparticles can be selected from among carbon nanotubes, nano-graphite powder particles having a substantially spherical shape, and mixtures thereof. The inclusion of described additives improves the stability and heat conductivity of the base. With the described method, the starting materials for the base and X-ray active layer, and other optional materials which may form functional layer are compressed to a preselected shape in a pressing mold with simultaneous application of pressure, elevated temperature and varied electric currents, compressing the shape to a final density exhibiting high-strength diffusion bonds between these starting materials. The described X-ray rotating anode plate can be used, for example, in high-performance X-ray tubes for X-ray computer tomography.

Abstract translation: 描述了具有所述可接受特性的基底和X射线活性层的X射线旋转阳极板及其制造方法。 基体包含准均匀空间分布中的碳纳米颗粒。 碳纳米管可以选自碳纳米管，具有大致球形的纳米石墨粉末颗粒及其混合物。 包含所述的添加剂改善了碱的稳定性和导热性。 通过所述方法，可以同时施加压力，升高的温度和变化的电流，将压制成型的基材和X射线活性层的起始材料以及可形成功能层的其它可选材料压制成预选形状， 将形状压缩至在这些起始材料之间呈现高强度扩散接合的最终密度。 所描述的X射线旋转阳极板可以用于例如用于X射线计算机断层摄影的高性能X射线管中。

公开(公告)号：US20120236997A1

公开(公告)日：2012-09-20

申请号：US13512977

申请日：2010-11-30

Applicant: Paul Xu ,  Kevin Kraft ,  Min He ,  Gerald James Carlson

Inventor： Paul Xu ,  Kevin Kraft ,  Min He ,  Gerald James Carlson

IPC: C22C27/04 ,  H01J35/08 ,  B05D5/12 ,  C22C1/02 ,  B22F9/16

CPC classification number: C22C1/02 ,  B22F9/082 ,  B22F2009/088 ,  C22C1/045 ,  C22C27/04 ,  H01J2235/081

Abstract: An alloy comprising at least two refractory metals and a method for forming such alloy are proposed. In the alloy, a first refractory metal such as tantalum forming a minor portion of the alloy is completely dissolved in a second refractory metal such as tungsten forming a major portion of the alloy. The alloy may be formed by providing the two refractory metals in a common crucible (step S1), melting both refractory metals by application of an electron beam (step S2), mixing the molten refractory metals (step S3) and solidifying the melt (step S4). Due to the possible complete mixing of the refractory metal components in a molten state, improved material properties of the solidified alloy may be achieved. Furthermore, due to the use of tantalum instead of rhenium together with tungsten, a cheap and resistant refractory metal alloy may be produced, which alloy may be used for example for forming a focal track region of an X-ray anode.

Abstract translation: 提出了包含至少两种难熔金属的合金和形成这种合金的方法。 在该合金中，形成少部分合金的第一难熔金属例如钽完全溶解在形成合金的主要部分的第二难熔金属如钨中。 合金可以通过在普通坩埚中提供两种难熔金属（步骤S1），通过施加电子束熔化两种难熔金属（步骤S2），混合熔融的难熔金属（步骤S3）并固化熔体（步骤 S4）。 由于难熔金属组分在熔融状态下可能的完全混合，可以实现固化合金的改善的材料性能。 此外，由于使用钽代替铼与钨一起使用，可以生产便宜且耐用的难熔金属合金，该合金可用于例如形成X射线阳极的焦点区域。

公开(公告)号：US07907700B2

公开(公告)日：2011-03-15

申请号：US12226077

申请日：2007-04-10

Applicant: Hitoshi Inaba ,  Yoshinori Okubo ,  Yoshiyuki Yagi ,  Shunichi Sato ,  Kazuhito Nishimura

Inventor： Hitoshi Inaba ,  Yoshinori Okubo ,  Yoshiyuki Yagi ,  Shunichi Sato ,  Kazuhito Nishimura

IPC: H01J35/00

CPC classification number: H05F3/06 ,  H01J35/06 ,  H01J2235/062 ,  H01J2235/081

Abstract: The present invention aims to suppress calorific value and prolong a lifetime of an apparatus that generates soft X-rays. Thus, the present invention provides a static elimination apparatus that includes an emitter as an electron emitting portion and a target, in which a thin film formed of diamond particles each having a particle size of 2 nm to 100 nm is formed on a surface of the emitter. The thin film has a diamond XRD pattern in an XRD measurement and, in a Raman spectroscopic measurement, a ratio of an sp3 bonding component to an sp2 bonding component within the film of 2.5 to 2.7:1. When a DC voltage is applied to the emitter, with a threshold electric field intensity of 1 V/μm or less, electrons larger in number than the prior art are emitted from the emitter and moreover, a temperature of the emitter is hardly increased, thus obtaining a longer lifetime.

Abstract translation: 本发明旨在抑制产生软X射线的装置的发热量并延长其使用寿命。 因此，本发明提供了一种静电消除装置，其包括作为电子发射部分的发射体和靶，其中形成有粒径为2nm至100nm的金刚石颗粒的薄膜在其表面上形成 发射器。 该薄膜在XRD测量中具有菱形XRD图案，并且在拉曼光谱测量中，膜中的sp3键合成分与sp2键合成分的比例为2.5〜2.7:1。 当直流电压施加到发射极时，阈值电场强度为1V /μm以下，从发射极发射数量比现有技术大的电子，此外，发射极的温度几乎不增加，因此 获得更长的使用寿命。

公开(公告)号：US07869862B2

公开(公告)日：2011-01-11

申请号：US10687522

申请日：2003-10-15

Applicant: Edward J. Seppi ,  Larry Partain ,  Michael Green ,  Gary Virshup

Inventor： Edward J. Seppi ,  Larry Partain ,  Michael Green ,  Gary Virshup

IPC: A61B6/00

CPC classification number: A61B6/405 ,  A61B5/7289 ,  A61B5/7292 ,  A61B6/032 ,  A61B6/0435 ,  A61B6/4035 ,  A61B6/4042 ,  A61B6/4241 ,  A61B6/4441 ,  A61B6/4488 ,  A61B6/466 ,  A61B6/481 ,  A61B6/482 ,  A61B6/502 ,  A61B6/504 ,  A61B6/5288 ,  A61B6/541 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  H01J2235/081

Abstract: A method of generating images of a portion of a body includes introducing a contrast agent into the body, generating a first set of image data using radiation at a first energy level after the contrast agent is introduced into the body, generating a second set of image data using radiation at a second energy level after the contrast agent is introduced into the body, and creating a volumetric composite image using the first and the second sets of image data.

Abstract translation: 产生身体部分的图像的方法包括将造影剂引入体内，在将造影剂引入体内之后，以第一能量级别的辐射产生第一组图像数据，产生第二组图像 在将造影剂引入身体之后，使用在第二能量级别的辐射的数据，以及使用第一和第二组图像数据创建体积合成图像。

公开(公告)号：US20100284520A1

公开(公告)日：2010-11-11

申请号：US12681055

申请日：2008-10-01

Applicant: Hans-Henning Reis ,  Dieter Melzer

Inventor： Hans-Henning Reis ,  Dieter Melzer

IPC: H01J35/10 ,  B27N3/00 ,  B22F3/02

CPC classification number: H01J35/108 ,  H01J2235/081

Abstract: Described is an X-ray rotating anode plate having a base and X-ray active layer having the described acceptable properties and a method for producing same. The base comprises carbon nanoparticles in quasi-homogeneous spatial distribution. Carbon nanoparticles can be selected from among carbon nanotubes, nano-graphite powder particles having a substantially spherical shape, and mixtures thereof. The inclusion of described additives improves the stability and heat conductivity of the base. With the described method, the starting materials for the base and X-ray active layer, and other optional materials which may form functional layer are compressed to a preselected shape in a pressing mold with simultaneous application of pressure, elevated temperature and varied electric currents, compressing the shape to a final density exhibiting high-strength diffusion bonds between these starting materials. The described X-ray rotating anode plate can be used, for example, in high-performance X-ray tubes for X-ray computer tomography.

Abstract translation: 描述了具有所述可接受特性的基底和X射线活性层的X射线旋转阳极板及其制造方法。 基体包含准均匀空间分布中的碳纳米颗粒。 碳纳米管可以选自碳纳米管，具有大致球形的纳米石墨粉末颗粒及其混合物。 包含所述的添加剂改善了碱的稳定性和导热性。 通过所述方法，可以同时施加压力，升高的温度和变化的电流，将压制成型的基材和X射线活性层的起始材料以及可形成功能层的其它可选材料压制成预选形状， 将形状压缩至在这些起始材料之间呈现高强度扩散接合的最终密度。 所描述的X射线旋转阳极板可以用于例如用于X射线计算机断层摄影的高性能X射线管中。

公开(公告)号：US07746976B2

公开(公告)日：2010-06-29

申请号：US11614199

申请日：2006-12-21

Applicant: Zhimin Huo ,  Chang-Ying J. Yang ,  Mark S. Purdum

Inventor： Zhimin Huo ,  Chang-Ying J. Yang ,  Mark S. Purdum

IPC: G01N23/087

CPC classification number: A61B6/4233 ,  A61B6/502 ,  A61B6/505 ,  A61B6/583 ,  G21K1/10 ,  H01J2235/081

Abstract: A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be performed on the image. The system for determining the bone mineral density of a body extremity includes: a support for supporting the body extremity; a detector for capturing an image of the body extremity; and an x-ray source adapted to project an x-ray beam through the body extremity toward the detector, the x-ray source having a voltage of no more than about 45 kVp and having a target/filter combination of rhodium/rhodium, molybdenum/molybdenum, molybdenum/rhodium, or tungsten/rhodium. An attenuation filter separate from the target/filter combination may be provided between the source and the body extremity, between the body extremity and the detector, or both.

Abstract translation: 一种用于确定身体肢体的骨矿物质密度的方法和系统。 使用乳房X射线照相系统获得身体末端的图像，由此可以对图像执行骨矿物质密度。 用于确定身体末端骨矿物质密度的系统包括：用于支撑身体末端的支撑体; 用于捕获身体肢体的图像的检测器; 以及X射线源，其适于将X射线束通过身体末端投射到检测器，X射线源具有不超过约45kVp的电压并且具有铑/铑，钼的靶/过滤器组合 /钼，钼/铑或钨/铑。 与目标/滤波器组合分离的衰减滤波器可以在源极和身体末端之间，身体末端和检测器之间，或两者之间提供。

公开(公告)号：US07731810B2

公开(公告)日：2010-06-08

申请号：US11769939

申请日：2007-06-28

Applicant: Pazhayannur Ramanathan Subramanian ,  Judson Sloan Marte ,  Paul Leonard Dupree

Inventor： Pazhayannur Ramanathan Subramanian ,  Judson Sloan Marte ,  Paul Leonard Dupree

IPC: C22F1/18

CPC classification number: C22C27/04 ,  B22F2009/041 ,  B22F2998/10 ,  B22F2999/00 ,  C22C32/0031 ,  H01J35/10 ,  H01J2235/081 ,  B22F9/04 ,  B22F3/02 ,  B22F3/17 ,  B22F3/18 ,  B22F3/20 ,  B22F2202/03

Abstract: A nanocomposite comprising a plurality of nanoparticles dispersed in a molybdenum-based matrix, and an x-ray tube component formed from such a nanocomposite. The nanocomposite contains volume fraction of nanoparticle dispersoids in a range from about 2 volume percent to about 20 volume percent. A method of making such molybdenum-based nanocomposites is also disclosed.

Abstract translation: 包含分散在钼基基质中的多个纳米颗粒的纳米复合材料和由这种纳米复合材料形成的x射线管组分。 纳米复合材料含有约2体积％至约20体积％范围内的纳米颗粒分散体的体积分数。 还公开了制备这种钼基纳米复合材料的方法。

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：US07545089B1

公开(公告)日：2009-06-09

申请号：US11085425

申请日：2005-03-21

Applicant: Louis R. Falce ,  R. Lawrence Ives

Inventor： Louis R. Falce ,  R. Lawrence Ives

IPC: H01J29/04 ,  H01J1/20

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

Abstract: A porous cathode structure is fabricated from a plurality of wires which are placed in proximity to each other in elevated temperature and pressure for a sintering time. The sintering process produces the porous cathode structure which may be divided into a plurality of individual porous cathodes, one of which may be placed into a dispenser cathode support which includes a cavity for containing a work function reduction material such as BaO, CaO, and Al2O3. The work function reduction material migrates through the pores of the porous cathode from a work replenishment surface adjacent to the cavity of the dispenser cathode support to an emitting cathode surface, thereby providing a dispenser cathode which has a uniform work function and therefore a uniform electron emission.

Abstract translation: 多孔阴极结构由多个电线制成，多个电线在升高的温度和压力下彼此靠近放置烧结时间。 烧结过程产生多孔阴极结构，其可以分成多个单独的多孔阴极，其中一个可以放置在分配器阴极支撑件中，该阴极支撑件包括用于容纳诸如BaO，CaO和Al 2 O 3的功函数减少材料的空腔 。 工作功能减少材料通过多孔阴极的孔隙从邻近分配器阴极支撑件的空腔的工作补充表面迁移到发射阴极表面，从而提供分配器阴极，其具有均匀的功函数，因此具有均匀的电子发射 。

公开(公告)号：US20090080614A1

公开(公告)日：2009-03-26

申请号：US12201741

申请日：2008-08-29

Applicant: Mark F. Eaton ,  Leonid D. Karpov

Inventor： Mark F. Eaton ,  Leonid D. Karpov

IPC: H01J35/06

CPC classification number: H01J35/065 ,  H01J35/08 ,  H01J35/14 ,  H01J35/16 ,  H01J2235/068 ,  H01J2235/081 ,  H01J2235/087

Abstract: A radiation source which can emit X-ray flux, UV-C flux and other forms of radiation uses electron beam current from a cathode array formed on the window through which the radiation will exit the source. The source can be made in formats which are compact or flat compared with prior art radiation sources. X-ray, UV-C and other radiative flux produced by the source can be used for such purposes as radiation imaging, sterilization, decontamination of biohazards, UV curing or photolithography.

Abstract translation: 可以发射X射线通量，UV-C通量和其他形式的辐射的辐射源使用来自形成在窗口上的阴极阵列的电子束电流，辐射将通过该阴极阵列离开源。 与现有技术的辐射源相比，源可以以紧凑或扁平的形式制成。 由源产生的X射线，UV-C和其他辐射通量可用于辐射成像，灭菌，生物危害的去污，UV固化或光刻。