公开(公告)号：US20120093296A1

公开(公告)日：2012-04-19

申请号：US13376449

申请日：2010-06-22

申请人： Kevin Kraft ,  Gerald James Carlson ,  Paul Xu

发明人： Kevin Kraft ,  Gerald James Carlson ,  Paul Xu

IPC分类号： H01J35/08 ,  H01J9/02

CPC分类号： H01J35/108 ,  H01J35/105 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/1229 ,  H01J2235/1245

摘要： The present invention relates to X-ray generating technology in general, in particular, it relates to an anode disk element (1) for an X-ray generating device (21). The generation of electromagnetic radiation may be considered to be quite inefficient, since a substantial part of energy applied to a focal track is converted to heat rather than X-radiation. Thus, a limiting factor in the operation of X-ray tubes is the cooling of the anode element and more specifically the focal track. In the present invention, an anode disk element is provided, with an improved dissipation of heat from the focal track. Thus, the anode disk element may sustain increased heat while maintaining structural integrity. The anode disk element (1) comprises at least a first surface (2) and a second surface (3), with the first surface (2) comprising a focal track (4) and the second surface (3) comprising a conductive coating (5). The anode disk element (1) is rotatable about a rotational axis (6) with the focal track (4) being rotationally symmetrical to the rotational axis (6). The first surface (2) comprising the focal track (4) and the second surface (3) comprising the conductive coating (5) are adjacently arranged.

摘要翻译： 本发明一般涉及X射线产生技术，特别涉及一种用于X射线产生装置（21）的阳极盘元件（1）。 电磁辐射的产生可能被认为是非常低效的，因为施加到焦点轨道的大部分能量被转换为热而不是X射线。 因此，X射线管的操作的限制因素是阳极元件的冷却，更具体地说是焦点轨迹。 在本发明中，提供了一种阳极盘元件，其具有来自焦点轨迹的热量的改善的散热。 因此，阳极盘元件可以维持增加的热量同时保持结构完整性。 阳极盘元件（1）至少包括第一表面（2）和第二表面（3），第一表面（2）包括焦点轨道（4），第二表面（3）包括导电涂层 5）。 阳极盘元件（1）可绕旋转轴线（6）旋转，其中焦点轨道（4）与旋转轴线（6）旋转对称。 包括焦点轨道（4）的第一表面（2）和包括导电涂层（5）的第二表面（3）相邻布置。

公开(公告)号：US20120236997A1

公开(公告)日：2012-09-20

申请号：US13512977

申请日：2010-11-30

申请人： Paul Xu ,  Kevin Kraft ,  Min He ,  Gerald James Carlson

发明人： Paul Xu ,  Kevin Kraft ,  Min He ,  Gerald James Carlson

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

CPC分类号： C22C1/02 ,  B22F9/082 ,  B22F2009/088 ,  C22C1/045 ,  C22C27/04 ,  H01J2235/081

摘要： 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.

摘要翻译： 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：US08948344B2

公开(公告)日：2015-02-03

申请号：US13376449

申请日：2010-06-22

申请人： Kevin Kraft ,  Gerald James Carlson ,  Paul Xu

发明人： Kevin Kraft ,  Gerald James Carlson ,  Paul Xu

IPC分类号： H01J35/08 ,  H01J35/10

CPC分类号： H01J35/108 ,  H01J35/105 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/1229 ,  H01J2235/1245

摘要： The present invention relates to X-ray generating technology in general, in particular, it relates to an anode disk element (1) for an X-ray generating device (21). The generation of electromagnetic radiation may be considered to be quite inefficient, since a substantial part of energy applied to a focal track is converted to heat rather than X-radiation. Thus, a limiting factor in the operation of X-ray tubes is the cooling of the anode element and more specifically the focal track. In the present invention, an anode disk element is provided, with an improved dissipation of heat from the focal track. Thus, the anode disk element may sustain increased heat while maintaining structural integrity. The anode disk element (1) comprises at least a first surface (2) and a second surface (3), with the first surface (2) comprising a focal track (4) and the second surface (3) comprising a conductive coating (5). The anode disk element (1) is rotatable about a rotational axis (6) with the focal track (4) being rotationally symmetrical to the rotational axis (6). The first surface (2) comprising the focal track (4) and the second surface (3) comprising the conductive coating (5) are adjacently arranged.

摘要翻译： 本发明一般涉及X射线产生技术，特别涉及一种用于X射线产生装置（21）的阳极盘元件（1）。 电磁辐射的产生可能被认为是非常低效的，因为施加到焦点轨道的大部分能量被转换为热而不是X射线。 因此，X射线管的操作的限制因素是阳极元件的冷却，更具体地说是焦点轨迹。 在本发明中，提供了一种阳极盘元件，其具有来自焦点轨迹的热量的改善的散热。 因此，阳极盘元件可以维持增加的热量同时保持结构完整性。 阳极盘元件（1）至少包括第一表面（2）和第二表面（3），第一表面（2）包括焦点轨道（4），第二表面（3）包括导电涂层 5）。 阳极盘元件（1）可绕旋转轴线（6）旋转，其中焦点轨道（4）与旋转轴线（6）旋转对称。 包括焦点轨道（4）的第一表面（2）和包括导电涂层（5）的第二表面（3）相邻布置。

公开(公告)号：US20120093292A1

公开(公告)日：2012-04-19

申请号：US13376519

申请日：2010-06-28

申请人： Kevin Kraft ,  Gerald James Carlson ,  Mark Maska ,  Paul Xu

发明人： Kevin Kraft ,  Gerald James Carlson ,  Mark Maska ,  Paul Xu

IPC分类号： H01J35/10 ,  G01N23/04

CPC分类号： H01J35/101 ,  H01J2235/1006 ,  H01J2235/1093

摘要： The invention relates to an X-ray tube with a rotatable anode, an X-ray imaging system and a method for adjusting the focal track of an X-ray tube with a rotatable anode. In order to improve the accuracy of X-ray tubes with rotating anodes and the run out characteristics of rotatable anodes, an X-ray tube with an envelope housing a cathode and an anode assembly is provided, wherein the anode assembly comprises a rotatable disk provided with an annular target forming a focal track, which focal track is rotationally symmetric around a symmetry axis, and a rotor stem for supporting the disk, which stem is rotatably supported around a primary axis of rotation. The stem is provided with a mounting surface to support the disk and the disk is provided with an abutment surface to be mounted to the mounting surface. According to the invention, correction means are arranged between the mounting surface and the abutment surface such that a run-out of the focal track in relation to the axis of rotation is adjustable.

摘要翻译： 本发明涉及具有可旋转阳极的X射线管，X射线成像系统和用于利用可旋转阳极调整X射线管的焦点轨迹的方法。 为了提高具有旋转阳极的X射线管的精度和可旋转阳极的耗尽特性，提供了具有容纳阴极和阳极组件的封套的X射线管，其中阳极组件包括可旋转盘 具有形成焦点轨道的环形目标，该焦点轨道围绕对称轴线旋转对称，以及用于支撑盘的转子杆，所述转子杆可围绕主旋转轴线被可旋转地支撑。 杆设置有用于支撑盘的安装表面，并且盘设置有待安装到安装表面的邻接表面。 根据本发明，校正装置设置在安装表面和邻接表面之间，使得焦点轨道相对于旋转轴线的偏移是可调节的。

公开(公告)号：US20120099703A1

公开(公告)日：2012-04-26

申请号：US13378845

申请日：2010-06-24

申请人： Kevin Kraft ,  Gerald J. Carlson ,  Paul Xu

发明人： Kevin Kraft ,  Gerald J. Carlson ,  Paul Xu

IPC分类号： H01J35/10 ,  B21D53/02 ,  G01N23/04

CPC分类号： H01J35/105 ,  H01J2235/081 ,  H01J2235/1204 ,  H01J2235/1291 ,  Y10T29/4935

摘要： The present invention relates to X-ray tube technology in general. Most of the energy applied to the focal spot via electron bombardment is converted to heat; the generation of electromagnetic radiation may be considered to be quite inefficient. One of the central limitations of X-ray tubes is the cooling, thus the dissipation of heat, of the anode element, in particular the focal track. Consequently, an anode disk element that may sustain increased heat while still maintaining structural integrity and furthermore that may provide improved dissipation of heat from the focal track is presented. According to the present invention, an anode disk element (1), comprising an anisotropic thermal conductivity, for the generation of X-rays is provided. The anode disk element (1) comprises a focal track (4) and at least one heat dissipating element (5). The anode disk element (1) is rotatable about a rotational axis (6) with the focal track (4) being rotationally symmetrical to the rotational axis (6). The at least one heat dissipating element (5) is adapted for heat dissipation from the focal track (4) in the direction of reduced thermal conductivity of the anode disk element (1).

摘要翻译： 本发明一般涉及X射线管技术。 通过电子轰击施加到焦点的大部分能量被转换成热; 电磁辐射的产生可能被认为是非常低效的。 X射线管的一个中心局限性是冷却，因此阳极元件的散热，特别是焦点轨迹。 因此，提供了可以维持增加的热同时仍然保持结构完整性并且还可以提供来自焦点轨道的改善的散热的阳极盘元件。 根据本发明，提供了一种用于产生X射线的包括各向异性热导率的阳极盘元件（1）。 阳极盘元件（1）包括焦点轨道（4）和至少一个散热元件（5）。 阳极盘元件（1）可绕旋转轴线（6）旋转，其中焦点轨道（4）与旋转轴线（6）旋转对称。 所述至少一个散热元件（5）适于在所述阳极盘元件（1）的热导率降低的方向上从所述焦点轨道（4）散热。

公开(公告)号：US08923485B2

公开(公告)日：2014-12-30

申请号：US13378845

申请日：2010-06-24

申请人： Kevin Kraft ,  Gerald J. Carlson ,  Paul Xu

发明人： Kevin Kraft ,  Gerald J. Carlson ,  Paul Xu

IPC分类号： H01J35/08 ,  H01J35/10 ,  H01J35/12

CPC分类号： H01J35/105 ,  H01J2235/081 ,  H01J2235/1204 ,  H01J2235/1291 ,  Y10T29/4935

摘要： An anode disk element for the generation of X-rays that provides improved dissipation of heat from a focal track includes an anisotropic thermal conductivity. The anode disk element includes a focal track and at least one heat dissipating element. The anode disk element is rotatable about a rotational axis with the focal track being rotationally symmetrical to the rotational axis. The at least one heat dissipating element is configured for heat dissipation from the focal track in the direction of reduced thermal conductivity of the anode disk element.

摘要翻译： 用于产生X射线的阳极盘元件提供来自焦轨的热量的改善的散热包括各向异性热导率。 阳极盘元件包括焦点轨道和至少一个散热元件。 阳极盘元件可以围绕旋转轴线旋转，其中焦点轨道与旋转轴线旋转对称。 所述至少一个散热元件构造成在阳极盘元件的热导率降低的方向上从焦点轨道散热。

公开(公告)号：US20060140344A1

公开(公告)日：2006-06-29

申请号：US10547197

申请日：2004-02-20

申请人： Paul Xu ,  George Awad ,  Salvatore Perno ,  Qing Lu

发明人： Paul Xu ,  George Awad ,  Salvatore Perno ,  Qing Lu

IPC分类号： H01J35/32 ,  H01J35/00 ,  H01J35/22

CPC分类号： B23K1/0008 ,  B23K1/19 ,  H01J9/02 ,  H01J9/04 ,  H01J35/06

摘要： An x-ray tube cathode assembly (28) includes a support arm (36) comprising a first metal. A ceramic insulator (70, 82) has a first metalized surface (72, 86) wherein the metalized surfaces comprise a desired amount of the first metal. A first member of filler material (90) is in contact with the support arm (36) and the first metalized surface (72, 86) of the ceramic insulator (70, 82), the first member of filler material comprising at least a second metal (96a, 96b) wherein a first alloy system (FIG. 5) comprising the first and second metals includes an alloy minimum point percentage composition (P) of the first and second metals having a first alloy system minimum melting point (M) for the alloy minimum point percentage composition that is lower than both of the melting point of the first metal and second metal. A bonding region resulting from heating the cathode assembly causing diffusion bonding to proceed, the bonding region has a layer of alloy comprising the minimum point percentage composition (P) and the heating of the cathode assembly continues to a bonding temperature of at least the first alloy system minimum melting point (M) and holding at that temperature for a desired period of time.

摘要翻译： X射线管阴极组件（28）包括包括第一金属的支撑臂（36）。 陶瓷绝缘体（70,82）具有第一金属化表面（72,86），其中金属化表面包含所需量的第一金属。 填充材料（90）的第一部件与陶瓷绝缘体（70,82）的支撑臂（36）和第一金属化表面（72,86）接触，第一填料材料包括至少第二个 金属（96a，96b），其中包括第一和第二金属的第一合金系统（图5）包括第一和第二金属的合金最小点百分比组成（P），其具有第一合金系统的最小熔点（M ），其低于第一金属和第二金属的熔点两者的合金最小点百分比组成。 通过加热阴极组件导致扩散接合而进行的接合区域，接合区域具有包含最小点百分比组成（P）的合金层，并且阴极组件的加热持续至少第一合金的接合温度 系统最小熔点（M），并在该温度下保持所需的时间。

公开(公告)号：US07209544B2

公开(公告)日：2007-04-24

申请号：US10547197

申请日：2004-02-20

申请人： Paul Xu ,  George Awad ,  Salvatore Perno ,  Qing K. Lu

发明人： Paul Xu ,  George Awad ,  Salvatore Perno ,  Qing K. Lu

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

CPC分类号： B23K1/0008 ,  B23K1/19 ,  H01J9/02 ,  H01J9/04 ,  H01J35/06

摘要： An x-ray tube cathode assembly (28) includes a support arm (36) comprising a first metal. A ceramic insulator (70, 82) has a first metalized surface (72, 86) wherein the metalized surfaces comprise a desired amount of the first metal. A first member of filler material (90) is in contact with the support arm (36) and the first metalized surface (72, 86) of the ceramic insulator (70, 82), the first member of filler material comprising at least a second metal (96a, 96b) wherein a first alloy system (FIG. 5) comprising the first and second metals includes an alloy minimum point percentage composition (P) of the first and second metals having a first alloy system minimum melting point (M) for the alloy minimum point percentage composition that is lower than both of the melting point of the first metal and second metal. A bonding region resulting from heating the cathode assembly causing diffusion bonding to proceed, the bonding region has a layer of alloy comprising the minimum point percentage composition (P) and the heating of the cathode assembly continues to a bonding temperature of at least the first alloy system minimum melting point (M) and holding at that temperature for a desired period of time.

摘要翻译： X射线管阴极组件（28）包括包括第一金属的支撑臂（36）。 陶瓷绝缘体（70,82）具有第一金属化表面（72,86），其中金属化表面包含所需量的第一金属。 填充材料（90）的第一部件与陶瓷绝缘体（70,82）的支撑臂（36）和第一金属化表面（72,86）接触，第一填料材料包括至少第二个 金属（96a，96b），其中包括第一和第二金属的第一合金系统（图5）包括第一和第二金属的合金最小点百分比组成（P），其具有第一合金系统的最小熔点（M ），其低于第一金属和第二金属的熔点两者的合金最小点百分比组成。 通过加热阴极组件导致扩散接合而进行的接合区域，接合区域具有包含最小点百分比组成（P）的合金层，并且阴极组件的加热持续至少第一合金的接合温度 系统最小熔点（M），并在该温度下保持所需的时间。