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    • 1. 发明授权
    • Cathode assembly with integral tabs
    • 阴极组件与整体制表
    • US07860219B2
    • 2010-12-28
    • US12239541
    • 2008-09-26
    • Scott M. ClarkGregory C. Andrews
    • Scott M. ClarkGregory C. Andrews
    • H01J35/30
    • H01J3/12H01J3/027H01J35/06H01J2235/068
    • A cathode shield can comprise a shield body, a pair of tabs for defining a focal spot length, and a lip for concentrically aligning the cathode shield relative to a mounting element and/or an electron source of a cathode assembly. The tabs may be integral with the shield body and spaced a distance apart from each other. The distance may at least partially define the focal spot length of the electron source associated with the cathode assembly. The lip may also be integral with the shield body and extend from the shield body around at least a portion of a perimeter of the shield body so as to define a recess that is configured to receive the mounting element of the cathode assembly.
    • 阴极屏蔽件可以包括屏蔽体,用于限定焦点长度的一对凸片,以及用于使阴极屏蔽件相对于阴极组件的安装元件和/或电子源同心对准的唇缘。 翼片可以与屏蔽体一体并且彼此隔开一段距离。 该距离可以至少部分地限定与阴极组件相关联的电子源的焦点长度。 唇缘还可以与屏蔽体成一体,并且从屏蔽体周围围绕屏蔽体的周边的至少一部分延伸,以便限定被配置为容纳阴极组件的安装元件的凹部。
    • 3. 发明授权
    • Shield structure and focal spot control assembly for x-ray device
    • X射线装置的屏蔽结构和焦点控制组件
    • US07289603B2
    • 2007-10-30
    • US10933806
    • 2004-09-03
    • Gregory C. AndrewsJames R. Boye
    • Gregory C. AndrewsJames R. Boye
    • H01J35/14
    • H01J35/10H01J35/16H01J2235/1216H01J2235/167
    • A shield structure and focal spot control assembly is provided for use in connection with an x-ray device that includes an anode and cathode disposed in a vacuum enclosure in a spaced apart arrangement so that a target surface of the anode is positioned to receive electrons emitted by the cathode. The shield structure is configured to be interposed between the anode and the cathode and includes an interior surface that defines an aperture or other opening through which the electrons are passed from the cathode to the target surface of the anode. Additionally, fluid passageways defined in connection with the shield structure enable cooling of the shield structure. Finally, a magnetic device disposed proximate the cathode facilitates control of the location of the focal spot on the target surface of the anode.
    • 提供了一种屏蔽结构和焦点控制组件,其用于与包括以间隔布置布置在真空外壳中的阳极和阴极的x射线装置结合使用,以使得阳极的目​​标表面被定位成接收发射的电子 由阴极。 屏蔽结构被配置为插入在阳极和阴极之间并且包括内表面,其限定孔或其它开口,电子从阴极传播到阳极的目标表面。 此外,与屏蔽结构相关联地限定的流体通道使得能够冷却屏蔽结构。 最后,靠近阴极设置的磁性装置有助于控制焦斑位于阳极的目标表面上的位置。
    • 8. 发明授权
    • Large surface area x-ray tube shield structure
    • 大面积X射线管屏蔽结构
    • US06519318B1
    • 2003-02-11
    • US09656076
    • 2000-09-07
    • Gregory C. Andrews
    • Gregory C. Andrews
    • H01J3510
    • H05G1/04H01J35/12H01J35/16H01J2235/12H01J2235/1216H01J2235/125H01J2235/1262H01J2235/1283H01J2235/168H05G1/025H05G1/06
    • An improved x-ray tube cooling system is disclosed. The system utilizes a shield structure that is connected between a cathode cylinder and an x-ray tube housing and is disposed between the electron source and the target anode. The shield includes a plurality of cooling fins to improve overall cooling of the x-ray tube and the shield so as to extend the life of the x-ray tube and related components. When immersed in a reservoir of coolant fluid, the fins facilitate improved heat transfer by convection from the shield to the to the coolant fluid. The cooling effect achieved with the cooling fins is further augmented by a convective cooling system provided by a plurality of fluid passageways formed within the shield, which are used to provide a fluid path to the coolant. In particular, a cooling unit takes fluid from the reservoir, cools the fluid, then circulates the cooled fluid through the fluid passageways. One or more depressions of “V” shaped cross section defined on the surfaces of the fluid passageways serve to facilitate nucleate boiling of the coolant in the passageway, and thereby materially increase the heat flux through the passageway to the coolant. Additionally, one or more extended surfaces disposed on the surfaces of the fluid passageways also facilitate a relative increase in the rate of heat transfer from the shield structure to the coolant. After flowing through the fluid passageway, the coolant is then discharged from the fluid passageways and directed over the cooling fins. In some embodiments, the fluid passageways are oriented so as to provide a greater heat transfer rate in certain sections of the shield than in other sections. Also disclosed is an improved braze joint for connecting the shield to the x-ray tube housing.
    • 公开了一种改进的X射线管冷却系统。 该系统利用连接在阴极筒和X射线管壳体之间并且设置在电子源和目标阳极之间的屏蔽结构。 屏蔽件包括多个散热片,以改善x射线管和屏蔽罩的整体冷却,以延长X射线管及相关部件的使用寿命。 当浸入冷却剂流体的储存器中时,翅片有助于通过从屏蔽件到冷却剂流体的对流来改善热传递。 用冷却翅片实现的冷却效果进一步由通过形成在屏蔽内的多个流体通道所提供的对流冷却系统进一步增强,该流体通道用于提供到冷却剂的流体路径。 特别地,冷却单元从储存器中取出流体,冷却流体,然后将冷却的流体循环通过流体通道。 限定在流体通道的表面上的一个或多个“V”形截面的凹陷用于促进通道中的冷却剂的核沸腾,从而实质上增加了通过通道的冷却剂的热通量。 此外,设置在流体通道的表面上的一个或多个延伸表面也有助于从屏蔽结构到冷却剂的热传递速率的相对增加。 在流过流体通道之后,冷却剂然后从流体通道排出并引导到冷却翅片上。 在一些实施例中,流体通道被定向成在屏蔽的某些部分中比在其它部分提供更大的传热速率。 还公开了一种用于将屏蔽件连接到X射线管壳体的改进的铜焊接头。
    • 9. 发明授权
    • X-ray tube cooling system
    • X射线管冷却系统
    • US06400799B1
    • 2002-06-04
    • US09351579
    • 1999-07-12
    • Gregory C. Andrews
    • Gregory C. Andrews
    • H01J3510
    • H01J35/16H01J2235/12H01J2235/1283H01J2235/168H05G1/025H05G1/04
    • An improved x-ray tube cooling system is disclosed. The system utilizes a shield structure that is connected between a cathode cylinder and an x-ray tube housing and is disposed between the electron source and the target anode. The shield a plurality of cooling fins to improve overall cooling of the x-ray tube and the shield so as to extend the life of the x-ray tube and related components. When immersed in a reservoir of coolant fluid, the fins facilitate improved heat transfer by convection from the shield to the to the coolant fluid. The cooling effect achieved with the cooling fins is further augmented by a convective cooling system provided by a plurality of passageways formed within the shield, which are used to provide a fluid path to the coolant. In particular, a cooling unit takes fluid from the reservoir, cools the fluid, then circulates the cooled fluid through cooling passages. The coolant is then output from the passageway and directed over the cooling fins. In some embodiments, the passageways are oriented so as to provide a greater heat transfer rate in certain sections of the shield than in other sections. Also disclosed is an improved braze joint for connecting the shield to the x-ray tube housing.
    • 公开了一种改进的X射线管冷却系统。 该系统利用连接在阴极筒和X射线管壳体之间并且设置在电子源和目标阳极之间的屏蔽结构。 屏蔽件具有多个散热片以改善x射线管和屏蔽罩的整体冷却,以延长X射线管和相关部件的使用寿命。 当浸入冷却剂流体的储存器中时,翅片有助于通过从屏蔽件到冷却剂流体的对流来改善热传递。 利用冷却翅片实现的冷却效果进一步增加了由形成在屏蔽内的多个通道所提供的对流冷却系统,该通道用于提供冷却剂的流体路径。 特别地,冷却单元从储存器中取出流体,冷却流体,然后将冷却的流体循环通过冷却通道。 然后,冷却剂从通道输出并被引导到冷却片上。 在一些实施例中,通道被定向成在屏蔽的某些部分中比在其它部分提供更大的传热速率。 还公开了一种用于将屏蔽件连接到X射线管壳体的改进的铜焊接头。
    • 10. 发明授权
    • Evacuated enclosure window cooling
    • 抽真空的外壳窗口冷却
    • US08054945B2
    • 2011-11-08
    • US12541802
    • 2009-08-14
    • Gregory C. Andrews
    • Gregory C. Andrews
    • H01J35/18
    • H05G1/04H01J35/18H01J2235/122H05G1/025
    • In one example, an x-ray tube includes an evacuated enclosure and an anode disposed with the evacuated enclosure. The anode is configured to receive electrons emitted by an electron emitter. The x-ray tube also includes an evacuated enclosure window disposed within a port of the evacuated enclosure. The evacuated enclosure window includes first and second axes, the first axis being relatively shorter than the second axis. The x-ray tube also includes means for directing coolant flow. The means for directing coolant flow causes coolant to flow across an exterior surface of the evacuated enclosure window in a direction substantially parallel to the first axis.
    • 在一个示例中,X射线管包括抽真空的外壳和设置有抽真空的外壳的阳极。 阳极被配置为接收由电子发射器发射的电子。 X射线管还包括设置在抽空外壳的端口内的抽真空的外壳窗。 抽真空的外壳窗包括第一和第二轴,第一轴相对于第二轴相对短。 X射线管还包括用于引导冷却剂流的装置。 用于引导冷却剂流的装置使得冷却剂沿着基本上平行于第一轴线的方向流过抽真空的外壳窗的外表面。