公开(公告)号：US20070098144A1

公开(公告)日：2007-05-03

申请号：US10596241

申请日：2004-12-02

Applicant: Shengzhong Zhang ,  Qing Lu ,  Kevin Kraft

Inventor： Shengzhong Zhang ,  Qing Lu ,  Kevin Kraft

IPC: H01J35/12 ,  H01J35/10

CPC classification number: F04D29/541 ,  F04D29/582 ,  H05G1/02 ,  H05G1/025

Abstract: A cooling system (12) for an x-ray tube assembly (10) includes a heat exchanger (14, 16) which receives cooling fluid from a housing (40) of the x-ray tube assembly and transfers the heat to a flow of air. A fan (90), such as an axial fan, directs the flow of air through the heat exchanger. The fan is positioned within a duct (78). A contoured air flux director (110) is positioned to intercept the flow of air from the duct and to redirect the flow of air in a direction which is generally perpendicular to an axis of rotation of the fan.

Abstract translation: 用于X射线管组件（10）的冷却系统（12）包括热交换器（14,16），其从X射线管组件的壳体（40）接收冷却流体，并将热量传递到 空气。 诸如轴流风扇的风扇（90）引导空气流过热交换器。 风扇位于管道（78）内。 成形的空气通量导向器（110）被定位成拦截来自管道的空气流并且使空气流沿着与风扇的旋转轴线垂直的方向重新定向。

公开(公告)号：US08948344B2

公开(公告)日：2015-02-03

申请号：US13376449

申请日：2010-06-22

Applicant: Kevin Kraft ,  Gerald James Carlson ,  Paul Xu

Inventor： Kevin Kraft ,  Gerald James Carlson ,  Paul Xu

IPC: H01J35/08 ,  H01J35/10

CPC classification number: H01J35/108 ,  H01J35/105 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/1229 ,  H01J2235/1245

Abstract: 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.

Abstract translation: 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

Applicant: Kevin Kraft ,  Gerald James Carlson ,  Mark Maska ,  Paul Xu

Inventor： Kevin Kraft ,  Gerald James Carlson ,  Mark Maska ,  Paul Xu

IPC: H01J35/10 ,  G01N23/04

CPC classification number: H01J35/101 ,  H01J2235/1006 ,  H01J2235/1093

Abstract: 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.

Abstract translation: 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：US20080069293A1

公开(公告)日：2008-03-20

申请号：US10596964

申请日：2005-01-05

Applicant: Qing Lu ,  Kevin Kraft ,  Fince (nmi) Tendian

Inventor： Qing Lu ,  Kevin Kraft ,  Fince (nmi) Tendian

IPC: H05G1/04 ,  H05G1/54

CPC classification number: F01D15/00 ,  H05G1/025 ,  H05G1/04 ,  H05G1/36 ,  H05G1/46 ,  H05G1/54

Abstract: A housing (30) surrounds at least a portion of an x-ray tube (1) . A cooling system (32, 32′) supplies a cooling liquid through the housing. The cooling system includes a pump (40, 40′) and a flow sensor system (60, 60′) which measures a pressure difference across the pump. A processor (80, 80′, 82, 82′) determines a cooling fluid flow rate from the pressure difference. A controller (81, 81′, 82, 82′, 107) limits operation of the x-ray tube based on the cooling fluid flow rate and a measured temperature of the cooling fluid to prevent x-ray tube overheating while minimizing cooling time between x-ray tube operations.

Abstract translation: 壳体（30）围绕X射线管（1）的至少一部分。 冷却系统（32,32'）通过壳体供应冷却液。 冷却系统包括泵（40,40'）和测量泵两端的压力差的流量传感器系统（60,60'）。 处理器（80,80'，82,82'）从压力差确定冷却流体流量。 控制器（81,81'，82,82'，107）基于冷却流体流速和冷却流体的测量温度来限制X射线管的操作，以防止X射线管过热，同时最小化冷却时间 x射线管操作。

公开(公告)号：US20120099703A1

公开(公告)日：2012-04-26

申请号：US13378845

申请日：2010-06-24

Applicant: Kevin Kraft ,  Gerald J. Carlson ,  Paul Xu

Inventor： Kevin Kraft ,  Gerald J. Carlson ,  Paul Xu

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

CPC classification number: H01J35/105 ,  H01J2235/081 ,  H01J2235/1204 ,  H01J2235/1291 ,  Y10T29/4935

Abstract: 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).

Abstract translation: 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：US20120093296A1

公开(公告)日：2012-04-19

申请号：US13376449

申请日：2010-06-22

Applicant: Kevin Kraft ,  Gerald James Carlson ,  Paul Xu

Inventor： Kevin Kraft ,  Gerald James Carlson ,  Paul Xu

IPC: H01J35/08 ,  H01J9/02

CPC classification number: H01J35/108 ,  H01J35/105 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/1229 ,  H01J2235/1245

Abstract: 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.

Abstract translation: 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：US08923485B2

公开(公告)日：2014-12-30

申请号：US13378845

申请日：2010-06-24

Applicant: Kevin Kraft ,  Gerald J. Carlson ,  Paul Xu

Inventor： Kevin Kraft ,  Gerald J. Carlson ,  Paul Xu

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

CPC classification number: H01J35/105 ,  H01J2235/081 ,  H01J2235/1204 ,  H01J2235/1291 ,  Y10T29/4935

Abstract: 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.

Abstract translation: 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：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。