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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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公开(公告)号：US20120082292A1
公开(公告)日：2012-04-05
申请号：US12894781
申请日：2010-09-30
CPC分类号： H01J35/045 , A61B6/032 , A61B6/405
摘要： A method for operating an electron beam system is presented. Further, an electron beam system, an X-ray tube and a CT system that implement the presented method are also described. The method includes generating an electron beam in an X-ray tube in an imaging system. Additionally, a current configuration corresponding to a particular view of the imaging system is identified. If the identified current configuration is within a determined range, a duty cycle of the electron beam for the particular view of the imaging system is modulated using pulse width modulation. Further, the modulated electron beam is focused towards a target.
摘要翻译： 提出了一种操作电子束系统的方法。 此外，还描述了实现所提出的方法的电子束系统，X射线管和CT系统。 该方法包括在成像系统中的X射线管中产生电子束。 另外，识别与成像系统的特定视图相对应的当前配置。 如果识别的当前配置在确定的范围内，则使用脉冲宽度调制来调制用于成像系统的特定视图的电子束的占空比。 此外，调制的电子束朝向目标聚焦。
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4.发明申请METHOD OF FAST CURRENT MODULATION IN AN X-RAY TUBE AND APPARATUS FOR IMPLEMENTING SAME 有权X射线管中快速电流调制方法及其实现方法公开(公告)号：US20110026681A1
公开(公告)日：2011-02-03
申请号：US12511815
申请日：2009-07-29
申请人： Yun Zou , Carey Shawn Rogers , Sergio Lemaitre , Mark Alan Frontera , Edward Emaci , Vance Robinson
发明人： Yun Zou , Carey Shawn Rogers , Sergio Lemaitre , Mark Alan Frontera , Edward Emaci , Vance Robinson
CPC分类号： H01J35/06 , H01J35/045
摘要： An x-ray imaging system includes a detector positioned to receive x-rays, and an x-ray tube coupled to a mount structure. The x-ray tube is configured to generate x-rays toward the detector and includes a target, a cathode cup, an emitter attached to the cathode cup and configured to emit a beam of electrons toward the target, the emitter having a length and a width, and a one-dimensional grid positioned between the emitter and the target and attached to the cathode cup at one or more attachment points. The one-dimensional grid includes a plurality of rungs that each extend in a direction of the width of the emitter, and the plurality of rungs are configured to expand and contract relative to the one or more attachment points without substantial distortion with respect to the emitter.
摘要翻译： x射线成像系统包括定位成接收x射线的检测器和耦合到安装结构的x射线管。 x射线管被配置成朝向检测器产生X射线，并且包括靶，阴极杯，连接到阴极杯并被配置为向靶发射电子束的发射器，发射器具有长度和 宽度和位于发射器和靶之间的一维网格，并且在一个或多个附着点处附接到阴极杯。 一维网格包括多个梯级，每个梯级各自在发射器的宽度方向上延伸，并且多个梯级被配置为相对于一个或多个附接点扩张和收缩，而相对于发射器没有实质的变形 。
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公开(公告)号：US08320521B2
公开(公告)日：2012-11-27
申请号：US12894781
申请日：2010-09-30
CPC分类号： H01J35/045 , A61B6/032 , A61B6/405
摘要： A method for operating an electron beam system is presented. Further, an electron beam system, an X-ray tube and a CT system that implement the presented method are also described. The method includes generating an electron beam in an X-ray tube in an imaging system. Additionally, a current configuration corresponding to a particular view of the imaging system is identified. If the identified current configuration is within a determined range, a duty cycle of the electron beam for the particular view of the imaging system is modulated using pulse width modulation. Further, the modulated electron beam is focused towards a target.
摘要翻译： 提出了一种操作电子束系统的方法。 此外，还描述了实现所提出的方法的电子束系统，X射线管和CT系统。 该方法包括在成像系统中的X射线管中产生电子束。 另外，识别与成像系统的特定视图相对应的当前配置。 如果识别的当前配置在确定的范围内，则使用脉冲宽度调制来调制用于成像系统的特定视图的电子束的占空比。 此外，调制的电子束朝向目标聚焦。
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6.发明授权Method of fast current modulation in an X-ray tube and apparatus for implementing same 有权X射线管中的快速电流调制方法及其实现方法公开(公告)号：US08027433B2
公开(公告)日：2011-09-27
申请号：US12511815
申请日：2009-07-29
申请人： Yun Zou , Carey Shawn Rogers , Sergio Lemaitre , Mark Alan Frontera , Edward Emaci , Vance Robinson
发明人： Yun Zou , Carey Shawn Rogers , Sergio Lemaitre , Mark Alan Frontera , Edward Emaci , Vance Robinson
CPC分类号： H01J35/06 , H01J35/045
摘要： An x-ray imaging system includes a detector positioned to receive x-rays, and an x-ray tube coupled to a mount structure. The x-ray tube is configured to generate x-rays toward the detector and includes a target, a cathode cup, an emitter attached to the cathode cup and configured to emit a beam of electrons toward the target, the emitter having a length and a width, and a one-dimensional grid positioned between the emitter and the target and attached to the cathode cup at one or more attachment points. The one-dimensional grid includes a plurality of rungs that each extend in a direction of the width of the emitter, and the plurality of rungs are configured to expand and contract relative to the one or more attachment points without substantial distortion with respect to the emitter.
摘要翻译： x射线成像系统包括定位成接收x射线的检测器和耦合到安装结构的x射线管。 x射线管被配置成朝向检测器产生X射线，并且包括靶，阴极杯，连接到阴极杯并被配置为向靶发射电子束的发射器，发射器具有长度和 宽度和位于发射器和靶之间的一维网格，并且在一个或多个附着点处附接到阴极杯。 一维网格包括多个梯级，每个梯级各自在发射器的宽度方向上延伸，并且多个梯级被配置为相对于一个或多个附接点扩张和收缩，而相对于发射器没有实质的变形 。
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7.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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8.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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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：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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10.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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