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公开(公告)号:US20090060140A1
公开(公告)日:2009-03-05
申请号:US11846563
申请日:2007-08-29
摘要: An x-ray tube includes an anode comprising a focal track and a cathode assembly configured to emit an electron beam toward a focal spot on the focal track. The x-ray tube also includes a controller configured to wobble the electron beam among a plurality of focal points in a direction tangent to the focal track. The plurality of focal points includes at least one focal point that is bounded by a pair of boundary focal points. The controller is further configured to delay a wobble of the electron beam away from the at least one focal point for a pre-determined amount of time.
摘要翻译: X射线管包括阳极,该阳极包括焦点轨道和阴极组件,该阴极组件被配置为朝向焦点轨迹上的焦斑发射电子束。 X射线管还包括控制器,其配置成在与焦点轨迹相切的方向上摆动多个焦点之间的电子束。 多个焦点包括由一对边界焦点限定的至少一个焦点。 控制器还被配置为将电子束的摆动远离至少一个焦点延迟预定的时间量。
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公开(公告)号:US07359486B2
公开(公告)日:2008-04-15
申请号:US11306233
申请日:2005-12-20
CPC分类号: H01J35/16 , H01J2235/1216 , H01J2235/1237 , H01J2235/125 , H01J2235/1262 , H01J2235/1283 , H01J2235/168
摘要: A structure for collecting scattered electrons within a substantially evacuated vessel containing both an electron-emitting cathode and an electron-attracting anode is disclosed herein. The electron-collecting structure includes a two-sided first plate, a two-sided second plate, a fluid inlet, and a fluid outlet. The first plate is both electrically conductive and thermally emissive and is mountable within the vessel so that its first side at least partially faces the anode. The second plate is also thermally emissive and has a first side that is substantially conterminous with the second side of the first plate. Furthermore, the second plate additionally has an internal conduit for conveying a heat-absorbing fluid within. Both the fluid inlet and the fluid outlet are in fluid communication with the conduit in the second plate. During operation, the structure is able to attract scattered electrons and transfer thermal energy attributable to the electrons away from the structure.
摘要翻译: 本文公开了一种在包含电子发射阴极和吸电子阳极的基本抽空的容器内收集散射电子的结构。 电子收集结构包括双面第一板,双面第二板,流体入口和流体出口。 第一板是导电和热发射的,并且可安装在容器内,使得其第一侧至少部分地面对阳极。 第二板也是热发射的,并且具有与第一板的第二侧基本相连的第一侧。 此外,第二板还具有用于在其内输送吸热流体的内部导管。 流体入口和流体出口都与第二板中的导管流体连通。 在运行期间,该结构能够吸引散射的电子并将归因于电子的热能转移到结构之外。
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公开(公告)号:US07042981B2
公开(公告)日:2006-05-09
申请号:US10707369
申请日:2003-12-09
申请人: Madhusudhana T. Subraya , Carey S. Rogers , Manohar G. Kollegal , Doug Snyder , Krystyna Truszkowska
发明人: Madhusudhana T. Subraya , Carey S. Rogers , Manohar G. Kollegal , Doug Snyder , Krystyna Truszkowska
IPC分类号: H01J35/18
CPC分类号: H01J35/18 , H01J2235/122 , H01J2235/1283 , H05G1/025
摘要: An x-ray tube window cooling assembly (11) for an x-ray tube (18) includes an electron collector body (110). The electron collector body (110) is thermally coupled to an x-ray tube window (102). The electron collector body (110) may include a coolant circuit (112) with a coolant inlet (114) and a coolant outlet (122). One or more thermal exchange devices may be coupled to the x-ray tube window (102) or to the coolant circuit (112) and reduce temperature of the x-ray tube window (102).
摘要翻译: 用于X射线管(18)的X射线管窗冷却组件(11)包括电子收集体(110)。 电子收集器主体(110)热耦合到X射线管窗口(102)。 电子收集器主体(110)可以包括具有冷却剂入口(114)和冷却剂出口(122)的冷却剂回路(112)。 一个或多个热交换装置可以耦合到X射线管窗口(102)或冷却剂回路(112)并降低X射线管窗口(102)的温度。
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