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    Liquid-free x-ray insert window
    11.
    发明授权
    Liquid-free x-ray insert window 失效
    无液体X射线插入窗

    公开(公告)号：US06594341B1

    公开(公告)日：2003-07-15

    申请号：US09943612

    申请日：2001-08-30

    Applicant: Qing K. Lu ,  Salvatore G. Perno ,  Todd R. Bittner ,  Norman E. Wandke

    Inventor： Qing K. Lu ,  Salvatore G. Perno ,  Todd R. Bittner ,  Norman E. Wandke

    IPC: H01J3510

    CPC classification number: H01J35/18 ,  H01J2235/122 ,  H01J2235/1275

    Abstract: An x-ray tube assembly (16) includes a housing (40) and an insert frame (52) supported within the housing (40), such that the insert frame (52) defines a substantially evacuated envelope in which cathode (56) and anode (54) assemblies operate to produce x-rays. An x-ray transmissive window assembly (70) extends between and in a fluid-tight relationship with the housing (40) and the insert frame (52). The window assembly (70) includes an insert window (72) brazed to the insert frame (52), a top plate (76), which is connected to and substantially surrounded by a flange (78), where the flange (78) is fastened to the x-ray tube housing (40). An annular side plate (86) is connected to a fluid-tight relationship with both the insert frame/window interface (74) and the flange (78). The window assembly (70) cools the window through enhanced heat transfer while preventing housing coolant from contacting the insert window (72), thereby eliminating coolant carbonization on the window (72) and enhancing x-ray beam quality.

    Abstract translation: X射线管组件（16）包括壳体（40）和支撑在壳体（40）内的插入框架（52），使得插入框架（52）限定基本抽真空的外壳，阴极（56）和 阳极（54）组件操作以产生x射线。 X射线透射窗组件（70）在与壳体（40）和插入框架（52）之间形成流体密封关系。 窗组件（70）包括钎焊到插入框架（52）的插入窗口（72），顶板（76），其连接到凸缘（78）并且基本上被法兰（78）包围，其中凸缘（78）是 紧固到X射线管壳体（40）。 环形侧板（86）与插入框架/窗口界面（74）和凸缘（78）两者与流体密封关系连接。 窗组件（70）通过增强的热传递来冷却窗户，同时防止壳体冷却剂接触插入窗口（72），从而消除窗口（72）上的冷却剂碳化并增强X射线束质量。

    Cryogenic x-ray source device
    15.
    发明申请
    Cryogenic x-ray source device 有权
    低温x射线源装置

    公开(公告)号：US20050025285A1

    公开(公告)日：2005-02-03

    申请号：US10871055

    申请日：2004-06-21

    Applicant: Johann Kindlein

    Inventor： Johann Kindlein

    IPC: A61N5/00 ,  A61N5/10 ,  H01J35/06 ,  H01J35/12 ,  H01J35/32 ,  H01J35/14 ,  H01J35/10

    CPC classification number: A61N5/1001 ,  A61N2005/005 ,  H01J35/065 ,  H01J35/12 ,  H01J35/32 ,  H01J2235/1204 ,  H01J2235/1212 ,  H01J2235/1216 ,  H01J2235/122 ,  H01J2235/127 ,  H01J2235/1275 ,  H01J2235/186

    Abstract: The invention relates to a miniature X-ray source device connected to a distal end of a guiding wire for insertion towards a desired location within an animal body for effecting radiation therapy, said X-ray source device at least comprising a vacuum tube accommodated in said housing containing a cathode and an anode spaced apart at some distance from each other; electron freeing means for freeing electrons from the cathode; electric field means for applying during use a high-voltage electric field between said cathode and said anode for accelerating said free electrons; said vacuum tube being at least partly transparent to X-ray radiation emitted by said anode, as well as cooling means for cooling at least said anode. It is an object to provide a miniature X-ray source device having further limited constructional dimensions and an improved control of the working temperature of at least the anode and hence the working conditions of the miniature X-ray source device. According to the invention the miniature X-ray source device is hereto characterised in that said cooling means are cryogenic cooling means. More in particular in a specific embodiment of said miniature X-ray source device said cooling means comprise at least one supply passageway for supplying pressurized gas towards said anode and at least one exhaust passageway for exhausting said pressurized gas from said anode, said supply passageway and said exhaust passageway being interconnected by means of an expansion chamber surrounding at least partly said anode.

    Abstract translation: 本发明涉及一种连接到导丝的远端的微型X射线源装置，用于向动物体内的所需位置插入以进行放射治疗，所述X射线源装置至少包括容纳在所述的X射线源装置中的真空管 壳体包含彼此间隔开一定距离的阴极和阳极; 用于从阴极释放电子的电子释放装置; 电场装置，用于在使用期间施加所述阴极和所述阳极之间的高压电场，用于加速所述自由电子; 所述真空管对于由所述阳极发射的X射线辐射至少部分透明，以及用于冷却至少所述阳极的冷却装置。 本发明的目的是提供一种具有进一步有限的结构尺寸的微型X射线源装置，以及对至少阳极的工作温度的改进控制以及微型X射线源装置的工作条件的改进。 根据本发明，微型X射线源装置的特征在于所述冷却装置是低温冷却装置。 更具体地在所述微型X射线源装置的具体实施例中，所述冷却装置包括用于向所述阳极供应加压气体的至少一个供应通道和用于从所述阳极排出所述加压气体的至少一个排气通道，所述供应通道和 所述排气通道通过至少部分地围绕所述阳极的膨胀室相互连接。

    Cryogenic x-ray source device
    18.
    发明授权
    Cryogenic x-ray source device 有权
    低温x射线源装置

    公开(公告)号：US07027560B2

    公开(公告)日：2006-04-11

    申请号：US10871055

    申请日：2004-06-21

    Applicant: Johann Kindlein

    Inventor： Johann Kindlein

    IPC: H01J35/12

    CPC classification number: A61N5/1001 ,  A61N2005/005 ,  H01J35/065 ,  H01J35/12 ,  H01J35/32 ,  H01J2235/1204 ,  H01J2235/1212 ,  H01J2235/1216 ,  H01J2235/122 ,  H01J2235/127 ,  H01J2235/1275 ,  H01J2235/186

    Abstract: The invention relates to a miniature X-ray source device connected to a distal end of a guiding wire for insertion towards a desired location within an animal body for effecting radiation therapy, said X-ray source device at least comprising a vacuum tube accommodated in said housing containing a cathode and an anode spaced apart at some distance from each other; electron freeing means for freeing electrons from the cathode; electric field means for applying during use a high-voltage electric field between said cathode and said anode for accelerating said free electrons; said vacuum tube being at least partly transparent to X-ray radiation emitted by said anode, as well as cooling means for cooling at least said anode.It is an object to provide a miniature X-ray source device having further limited constructional dimensions and an improved control of the working temperature of at least the anode and hence the working conditions of the miniature X-ray source device.According to the invention the miniature X-ray source device is hereto characterised in that said cooling means are cryogenic cooling means. More in particular in a specific embodiment of said miniature X-ray source device said cooling means comprise at least one supply passageway for supplying pressurized gas towards said anode and at least one exhaust passageway for exhausting said pressurized gas from said anode, said supply passageway and said exhaust passageway being interconnected by means of an expansion chamber surrounding at least partly said anode.

    Abstract translation: 本发明涉及一种连接到导丝的远端的微型X射线源装置，用于向动物体内的所需位置插入以进行放射治疗，所述X射线源装置至少包括容纳在所述的X射线源装置中的真空管 壳体包含彼此间隔开一定距离的阴极和阳极; 用于从阴极释放电子的电子释放装置; 电场装置，用于在使用期间施加所述阴极和所述阳极之间的高压电场，用于加速所述自由电子; 所述真空管对于由所述阳极发射的X射线辐射至少部分透明，以及用于冷却至少所述阳极的冷却装置。 本发明的目的是提供一种具有进一步有限的结构尺寸的微型X射线源装置，以及对至少阳极的工作温度的改进控制以及微型X射线源装置的工作条件的改进。 根据本发明，微型X射线源装置的特征在于所述冷却装置是低温冷却装置。 更具体地在所述微型X射线源装置的具体实施例中，所述冷却装置包括用于向所述阳极供应加压气体的至少一个供应通道和用于从所述阳极排出所述加压气体的至少一个排气通道，所述供应通道和 所述排气通道通过至少部分地围绕所述阳极的膨胀室相互连接。

    Dual fluid cooling system for high power x-ray tubes
    19.
    发明申请
    Dual fluid cooling system for high power x-ray tubes 有权
    双流体冷却系统，用于大功率X射线管

    公开(公告)号：US20020146092A1

    公开(公告)日：2002-10-10

    申请号：US09829353

    申请日：2001-04-09

    Applicant: Varian Medical Systems, Inc.

    Inventor： John E. Richardson ,  Gregory C. Andrews ,  Robert S. Miller ,  Allen C. Campbell

    IPC: H01J035/10

    CPC classification number: H01J35/106 ,  H01J2235/1204 ,  H01J2235/1275 ,  H01J2235/1283 ,  H01J2235/1287 ,  H05G1/025 ,  H05G1/04

    Abstract: A cooling system for use with high-power x-ray tubes. The cooling system includes a dielectric coolant disposed in the x-ray tube housing so as to absorb heat dissipated by the stator and other electrical components, as well as absorbing some heat from the x-ray tube itself. To improve heat absorption from the stator and the x-ray tube, the dielectric coolant is circulated throughout the housing by a circulating pump. The cooling system also includes a coolant circuit employing a pressurized water/glycol solution as a coolant. Pressurization of the water/glycol solution is achieved by way of an accumulator which, by pressurizing the coolant to a desired level, raises its boiling point and capacity to absorb heat. A coolant pump circulates the pressurized coolant through a fluid passageway defined in an aperture of the x-ray tube and through a target cooling block disposed proximate to the x-ray tube in the x-ray tube housing, so as to position the coolant to absorb some of the heat generated at the aperture by secondary electrons, and the heat generated in the target cooling block by the target anode of the x-ray tube. The target cooling block is in contact with the dielectric fluid so that some of the heat absorbed by the dielectric coolant is transferred to the coolant flowing through the target cooling block. The heated coolant is then passed through an air/water radiator where a flow of air serves to remove some heat from the coolant. Thus cooled, the coolant then exits the radiator to repeat the cycle.

    Abstract translation: 用于大功率x射线管的冷却系统。 冷却系统包括设置在x射线管壳体中的介电冷却剂，以便吸收由定子和其它电气部件散发的热量，以及从X射线管本身吸收一些热量。 为了改善来自定子和x射线管的热吸收，电介质冷却剂通过循环泵在整个壳体内循环。 冷却系统还包括使用加压水/乙二醇溶液作为冷却剂的冷却剂回路。 水/乙二醇溶液的加压通过储液器实现，储液器通过将冷却剂加压至所需水平，提高其沸点和吸收热量的能力。 冷却剂泵将加压的冷却剂循环通过限定在x射线管的孔中的流体通道并且通过靠近x射线管外壳中的x射线管设置的目标冷却块，以将冷却剂定位到 通过二次电子吸收在孔径处产生的一些热量，以及由X射线管的目标阳极在目标冷却块中产生的热量。 目标冷却块与电介质流体接触，使得由电介质冷却剂吸收的一些热量被传递到流过目标冷却块的冷却剂。 然后，加热的冷却剂通过空气/水散热器，其中空气流用于从冷却剂中去除一些热量。 如此冷却，冷却剂然后离开散热器重复循环。

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