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US07197115B2 Cantilever and straddle x-ray tube configurations for a rotating anode with vacuum transition chambers 失效
悬臂和跨乘X射线管配置用于具有真空过渡室的旋转阳极

Cantilever and straddle x-ray tube configurations for a rotating anode with vacuum transition chambers
Abstract:
An imaging tube assembly (11) for a computed tomography (CT) system (10) includes an insert (60) that has a vacuum chamber (72). An anode (58) resides within the vacuum chamber (72) and rotates on a shaft (66) via one or more bearing (70). In one embodiment, a seal (52) resides between the insert (60) and the shaft (66). The seal (52) prevents the passage of a gas (80) into the vacuum chamber (72). In another embodiment, a pressure transition chamber (104) is coupled to an insert (60″) and a shaft (66″). The pressure transition chamber (104) has an associated middle fluid pressure that is between an internal fluid pressure of the vacuum chamber (104) and an external fluid pressure of said insert (60″).
Abstract(Chinese):

用于计算机断层摄影（CT）系统（10）的成像管组件（11）包括具有真空室（72）的插入件（60）。 阳极（58）位于真空室（72）内，经由一个或多个轴承（70）在轴（66）上旋转。 在一个实施例中，密封件（52）位于插入件（60）和轴（66）之间。 密封件（52）防止气体（80）进入真空室（72）。 在另一个实施例中，压力过渡室（104）联接到插入件（60“）和轴（66”）。 压力过渡室（104）具有在真空室（104）的内部流体压力和所述插入件（60“）的外部流体压力之间的相关联的中间流体压力。

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