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公开(公告)号：US08401151B2
公开(公告)日：2013-03-19
申请号：US12639206
申请日：2009-12-16
IPC分类号： H01J35/14
CPC分类号： H01J35/14 , H01J35/045
摘要： An injector for an X-ray tube is presented. The injector includes an emitter to emit an electron beam, at least one focusing electrode disposed around the emitter, wherein the at least one focusing electrode focuses the electron beam and at least one extraction electrode maintained at a positive bias voltage with respect to the emitter, wherein the at least one extraction electrode controls an intensity of the electron beam.
摘要翻译： 提出了一种用于X射线管的注射器。 所述喷射器包括发射电子束的发射器，设置在所述发射极周围的至少一个聚焦电极，其中所述至少一个聚焦电极聚焦所述电子束和相对于所述发射极保持在正偏置电压的至少一个引出电极， 其中所述至少一个提取电极控制所述电子束的强度。
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公开(公告)号：US20110142193A1
公开(公告)日：2011-06-16
申请号：US12639206
申请日：2009-12-16
CPC分类号： H01J35/14 , H01J35/045
摘要： An injector for an X-ray tube is presented. The injector includes an emitter to emit an electron beam, at least one focusing electrode disposed around the emitter, wherein the at least one focusing electrode focuses the electron beam and at least one extraction electrode maintained at a positive bias voltage with respect to the emitter, wherein the at least one extraction electrode controls an intensity of the electron beam.
摘要翻译： 提出了一种用于X射线管的注射器。 所述喷射器包括发射电子束的发射器，设置在所述发射极周围的至少一个聚焦电极，其中所述至少一个聚焦电极聚焦所述电子束和相对于所述发射极保持在正偏置电压的至少一个引出电极， 其中所述至少一个提取电极控制所述电子束的强度。
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3.发明授权公开(公告)号：US08588372B2
公开(公告)日：2013-11-19
申请号：US12639419
申请日：2009-12-16
IPC分类号： H05G1/52
CPC分类号： H01J35/14 , H01J35/065 , H01J2235/02 , H01J2235/062 , H01J2235/068
摘要： An apparatus for modifying an aspect ratio of an electron beam to form a focal spot having a desired size and aspect ratio on a target anode is disclosed. The apparatus includes an emitter element configured to generate an electron beam having a first aspect ratio shape and an extraction electrode positioned adjacent to the emitter element to extract the electron beam out therefrom, the extraction electrode including an opening therethrough. The apparatus also includes at least one shaping electrode positioned to receive the electron beam after passing through the extraction electrode, the shaping electrode defining a non-circular aperture therein and being configured to provide at least one of shaping and focusing of the electron beam to have a second aspect ratio shape different from the first aspect ratio shape so as to form a focal spot having a desired size and aspect ratio on a target anode.
摘要翻译： 公开了一种用于修改电子束的纵横比以在目标阳极上形成具有期望的尺寸和纵横比的焦斑的装置。 该装置包括：发射体元件，被配置为产生具有第一长宽比形状的电子束和与发射极元件相邻的引出电极，以从其中提取电子束，所述引出电极包括通过其的开口。 该设备还包括至少一个成形电极，其定位成在通过引出电极之后接收电子束，成形电极在其中限定非圆形孔，并且被配置为提供电子束的成形和聚焦中的至少一个以具有 与第一纵横比形状不同的第二纵横比形状，以在目标阳极上形成具有期望尺寸和纵横比的焦点。
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4.发明申请公开(公告)号：US20110142204A1
公开(公告)日：2011-06-16
申请号：US12639419
申请日：2009-12-16
CPC分类号： H01J35/14 , H01J35/065 , H01J2235/02 , H01J2235/062 , H01J2235/068
摘要： An apparatus for modifying an aspect ratio of an electron beam to form a focal spot having a desired size and aspect ratio on a target anode is disclosed. The apparatus includes an emitter element configured to generate an electron beam having a first aspect ratio shape and an extraction electrode positioned adjacent to the emitter element to extract the electron beam out therefrom, the extraction electrode including an opening therethrough. The apparatus also includes at least one shaping electrode positioned to receive the electron beam after passing through the extraction electrode, the shaping electrode defining a non-circular aperture therein and being configured to provide at least one of shaping and focusing of the electron beam to have a second aspect ratio shape different from the first aspect ratio shape so as to form a focal spot having a desired size and aspect ratio on a target anode.
摘要翻译： 公开了一种用于修改电子束的纵横比以在目标阳极上形成具有期望的尺寸和纵横比的焦斑的装置。 该装置包括：发射体元件，被配置为产生具有第一长宽比形状的电子束和与发射极元件相邻的引出电极，以从其中提取电子束，所述引出电极包括通过其的开口。 该设备还包括至少一个成形电极，其定位成在通过引出电极之后接收电子束，成形电极在其中限定非圆形孔，并且被配置为提供电子束的成形和聚焦中的至少一个以具有 与第一纵横比形状不同的第二纵横比形状，以在目标阳极上形成具有期望尺寸和纵横比的焦点。
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5.发明申请公开(公告)号：US20120099707A1
公开(公告)日：2012-04-26
申请号：US12911916
申请日：2010-10-26
CPC分类号： H01J35/14
摘要： An x-ray tube assembly includes a vacuum enclosure that has a cathode portion, a target portion, and a throat portion. The throat portion includes a metal bellows. An upstream end of the throat portion is coupled to the cathode portion and a downstream end of the throat portion is coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target.
摘要翻译： X射线管组件包括具有阴极部分，目标部分和喉部分的真空外壳。 喉部包括金属波纹管。 喉部分的上游端连接到阴极部分，并且喉部分的下游端连接到目标部分。 X射线管组件还包括位于真空外壳的目标部分内的靶，以及位于真空外壳的阴极部分内的阴极。 阴极构造成通过喉部朝向靶发射电子流。
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6.发明授权Apparatus and method for improved transient response in an electromagnetically controlled x-ray tube 有权用于在电磁控制的X射线管中改善瞬态响应的装置和方法公开(公告)号：US08284901B2
公开(公告)日：2012-10-09
申请号：US12911923
申请日：2010-10-26
IPC分类号： H01J35/30
CPC分类号： H01J35/14 , H01J35/16 , H01J2235/1216 , H01J2235/16
摘要： An x-ray tube assembly includes a vacuum enclosure that includes a cathode portion, a target portion, and a throat portion having a plurality of recesses formed therein to break up eddy currents generated in the throat portion. The throat portion has an upstream end coupled to the cathode portion and a downstream end coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target.
摘要翻译： X射线管组件包括真空外壳，其包括阴极部分，目标部分和具有形成在其中的多个凹部的喉部，以分解在喉部中产生的涡流。 喉部具有联接到阴极部分的上游端和联接到目标部分的下游端。 X射线管组件还包括位于真空外壳的目标部分内的靶，以及位于真空外壳的阴极部分内的阴极。 阴极构造成通过喉部朝向靶发射电子流。
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7.发明授权Apparatus and method for improved transient response in an electromagnetically controlled X-ray tube 有权用于改善电磁控制X射线管瞬态响应的装置和方法公开(公告)号：US08385507B2
公开(公告)日：2013-02-26
申请号：US12911916
申请日：2010-10-26
IPC分类号： H01J35/14
CPC分类号： H01J35/14
摘要： An x-ray tube assembly includes a vacuum enclosure that has a cathode portion, a target portion, and a throat portion. The throat portion includes a metal bellows. An upstream end of the throat portion is coupled to the cathode portion and a downstream end of the throat portion is coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target.
摘要翻译： X射线管组件包括具有阴极部分，目标部分和喉部分的真空外壳。 喉部包括金属波纹管。 喉部分的上游端连接到阴极部分，并且喉部分的下游端连接到目标部分。 X射线管组件还包括位于真空外壳的目标部分内的靶，以及位于真空外壳的阴极部分内的阴极。 阴极构造成通过喉部朝向靶发射电子流。
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8.发明授权Apparatus and method for improved transient response in an electromagnetically controlled X-ray tube 有权用于改善电磁控制X射线管瞬态响应的装置和方法公开(公告)号：US08284900B2
公开(公告)日：2012-10-09
申请号：US12911893
申请日：2010-10-26
申请人： Carey Shawn Rogers , Mark Alan Frontera , Ethan James Westcot , Aparna Chakrapani Sheila-Vadde , Peter Andras Zavodszky
发明人： Carey Shawn Rogers , Mark Alan Frontera , Ethan James Westcot , Aparna Chakrapani Sheila-Vadde , Peter Andras Zavodszky
IPC分类号： H01J35/30
CPC分类号： H01J35/14 , H01J35/16 , H01J2235/1216 , H01J2235/16
摘要： An x-ray tube assembly includes a vacuum enclosure including a cathode portion, a target portion, and a throat portion. The throat portion includes a magnetic field section, upstream section, and downstream section. The magnetic field section has a first susceptibility to generate eddy currents in the presence of a magnetic field intensity. The upstream section is coupled to the cathode portion and the magnetic field section and has a second susceptibility to generate eddy currents in the presence of the magnetic field intensity. The downstream section is coupled to the magnetic field section and has a third susceptibility to generate eddy currents in the presence of the magnetic field intensity. The first susceptibility to generate eddy currents is less than the second and third susceptibilities to generate eddy currents. The assembly includes a target within the target portion, and a cathode within the cathode portion.
摘要翻译： X射线管组件包括真空外壳，其包括阴极部分，目标部分和喉部。 喉部包括磁场部分，上游部分和下游部分。 在存在磁场强度的情况下，磁场部分具有产生涡流的第一敏感性。 上游部分耦合到阴极部分和磁场部分，并且在存在磁场强度的情况下具有产生涡流的第二磁敏度。 下游部分耦合到磁场部分，并且在存在磁场强度的情况下具有产生涡流的第三磁化率。 产生涡流的第一敏感性小于产生涡流的第二和第三磁敏度。 组件包括目标部分内的靶和阴极部分内的阴极。
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9.发明授权Apparatus and method for improved transient response in an electromagnetically controlled X-ray tube 有权用于改善电磁控制X射线管瞬态响应的装置和方法公开(公告)号：US08280007B2
公开(公告)日：2012-10-02
申请号：US12911908
申请日：2010-10-26
申请人： Carey Shawn Rogers , Mark Alan Frontera , Ethan James Westcot , Aparna Chakrapani Sheila-Vadde , Peter Andras Zavodszky
发明人： Carey Shawn Rogers , Mark Alan Frontera , Ethan James Westcot , Aparna Chakrapani Sheila-Vadde , Peter Andras Zavodszky
IPC分类号： H01J35/30
CPC分类号： H01J35/14 , H01J35/16 , H01J2235/1216 , H01J2235/16
摘要： An x-ray tube assembly includes a vacuum enclosure having a cathode portion, a target portion, and a throat portion comprising a non-electrically conductive tube. The throat portion has an upstream end coupled to the cathode portion and a downstream end coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target.
摘要翻译： X射线管组件包括具有阴极部分，目标部分和包括非导电管的喉部的真空外壳。 喉部具有联接到阴极部分的上游端和联接到目标部分的下游端。 X射线管组件还包括位于真空外壳的目标部分内的靶，以及位于真空外壳的阴极部分内的阴极。 阴极构造成通过喉部朝向靶发射电子流。
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10.发明申请公开(公告)号：US20120099708A1
公开(公告)日：2012-04-26
申请号：US12911923
申请日：2010-10-26
CPC分类号： H01J35/14 , H01J35/16 , H01J2235/1216 , H01J2235/16
摘要： An x-ray tube assembly includes a vacuum enclosure that includes a cathode portion, a target portion, and a throat portion having a plurality of recesses formed therein to break up eddy currents generated in the throat portion. The throat portion has an upstream end coupled to the cathode portion and a downstream end coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target.
摘要翻译： X射线管组件包括真空外壳，其包括阴极部分，目标部分和具有形成在其中的多个凹部的喉部，以分解在喉部中产生的涡流。 喉部具有联接到阴极部分的上游端和联接到目标部分的下游端。 X射线管组件还包括位于真空外壳的目标部分内的靶，以及位于真空外壳的阴极部分内的阴极。 阴极构造成通过喉部朝向靶发射电子流。
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