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1. 发明申请

US20140010354A1 APPARATUS AND METHOD OF MANUFACTURING A THERMALLY STABLE CATHODE IN AN X-RAY TUBE 有权
标题翻译：在X射线管中制造热稳定阴极的装置和方法
公开(公告)号：US20140010354A1
公开(公告)日：2014-01-09
申请号：US13540714
申请日：2012-07-03
申请人： Sergio Lemaitre
发明人： Sergio Lemaitre
IPC分类号： H01J35/06 , B23K26/20 , H01J9/00
CPC分类号： H01J35/06
摘要： An x-ray imaging system includes a detector positioned to receive x-rays, an x-ray tube configured to generate x-rays toward the detector from a focal spot surface, the x-ray tube includes a target having the focal spot surface, a cathode support arm, and a cathode attached to the cathode support arm. The cathode includes a split cathode cup having a first portion and a second portion that is separate from the first portion, the first and second portions having respective first and second emitter attachment surfaces, and a flat emitter that is attached to the first and second emitter attachment surfaces such that, when an electrical current is provided to the first portion of the cathode cup, the current passes through the flat emitter and returns through the second portion of the cathode cup such that electrons emit from the flat emitter and toward the focal spot surface.
摘要翻译： X射线成像系统包括被定位成接收x射线的检测器，被配置为从焦斑表面向检测器产生X射线的X射线管，X射线管包括具有焦点表面的靶，阴极支撑臂和连接到阴极支撑臂的阴极。阴极包括分开的阴极杯，其具有与第一部分分离的第一部分和第二部分，第一和第二部分具有相应的第一和第二发射器附接表面，以及平坦发射体，其连接到第一和第二发射体附接表面使得当电流被提供到阴极杯的第一部分时，电流通过平面发射器并返回通过阴极杯的第二部分，使得电子从平坦发射体发射并且朝向焦斑表面。

2. 发明授权

US08487534B2 Pierce gun and method of controlling thereof 有权
标题翻译：皮尔斯枪及其控制方法
公开(公告)号：US08487534B2
公开(公告)日：2013-07-16
申请号：US12750841
申请日：2010-03-31
申请人： Antonio Caiafa , Xi Zhang , Vance Robinson , Sergio Lemaitre
发明人： Antonio Caiafa , Xi Zhang , Vance Robinson , Sergio Lemaitre
IPC分类号： H01J25/50 , H05B31/26
CPC分类号： H01J35/06 , H05G1/32
摘要： A system and method for controlling the temperature of both an electron emitter and a filament to their lowest possible operating temperature is disclosed. The apparatus includes a filament, an electron emitter heated by the filament to generate an electron beam, and a power supply configured to supply power to each of the filament and the electron emitter. The apparatus also includes a control system to control a supply of power to each of the filament and the electron emitter, with the control system being configured to receive an input indicative of a desired electron emitter operating temperature, cause a desired voltage to be applied between the electron emitter and the filament, and cause a desired voltage to be applied to the filament based on the desired emitter element operating temperature, so as to minimize an operating temperature of the electron emitter and the filament.
摘要翻译：公开了一种用于将电子发射器和灯丝的温度控制到其最低可能工作温度的系统和方法。该装置包括灯丝，由灯丝加热以产生电子束的电子发射器，以及被配置为向灯丝和电子发射器中的每一个供电的电源。该装置还包括控制系统，用于控制向每个灯丝和电子发射器供电的功率，其中控制系统被配置为接收指示期望的电子发射器工作温度的输入，电子发射体和细丝，并且基于期望的发射极元件工作温度使所需的电压施加到灯丝，以使电子发射器和灯丝的工作温度最小化。

3. 发明申请

US20110116593A1 SYSTEM AND METHOD FOR BEAM FOCUSING AND CONTROL IN AN INDIRECTLY HEATED CATHODE 有权
标题翻译：用于光束加热和控制的系统和方法在不同加热的阴极中
公开(公告)号：US20110116593A1
公开(公告)日：2011-05-19
申请号：US12617737
申请日：2009-11-13
申请人： Yun Zou , Vance Scott Robinson , Louis Paul Inzinna , Kenneth Roger Conway , Sergio Lemaitre , Mark Alan Frontera , Xi Zhang , Vasile Bogdan Neculaes
发明人： Yun Zou , Vance Scott Robinson , Louis Paul Inzinna , Kenneth Roger Conway , Sergio Lemaitre , Mark Alan Frontera , Xi Zhang , Vasile Bogdan Neculaes
IPC分类号： H05G1/60 , H01J29/46 , H01J35/14
CPC分类号： H01J35/065 , H01J35/14 , H01J2235/06 , H01J2235/167
摘要： An indirectly heated cathode assembly is presented. The indirectly heated cathode assembly includes at least one electron source for generating a first electron beam, an emitter for producing a second electron beam when heated by the first electron beam and a focusing electrode for controlling, and directing the first electron beam towards the emitter.
摘要翻译：提出了间接加热的阴极组件。间接加热的阴极组件包括用于产生第一电子束的至少一个电子源，用于由第一电子束加热时产生第二电子束的发射体和用于控制第一电子束并将其引向发射极的聚焦电极。

4. 发明申请

US20070237302A1 SYSTEMS, APPARATUS AND METHODS FOR X-RAY IMAGING 有权
标题翻译：用于X射线成像的系统，装置和方法
公开(公告)号：US20070237302A1
公开(公告)日：2007-10-11
申请号：US11391152
申请日：2006-03-28
申请人： Jizhong Chen , Sergio Lemaitre , Brian Douglas Lounsberry
发明人： Jizhong Chen , Sergio Lemaitre , Brian Douglas Lounsberry
IPC分类号： H01J35/06
CPC分类号： H01J35/06 , H01J35/14 , H01J2235/068
摘要： A cathode cup is provided. The cathode cup includes one or more pockets; and one or more filaments associated with the one or more pockets. A same number of pockets as filaments are present. Each pocket is associated with exactly one filament and is configured to have a length that is tailored to a length of the filament. The cathode cup can be used in an X-ray system having an anode and a cathode. A method of electron beam shaping is provided. The method includes the following steps. A computer-simulated model of a cathode cup is created. The model is used to predict focal spot dimensions. The predicted focal spot dimensions are compared to desired focal spot dimensions. The steps of creating, using and comparing are repeated until the predicted focal spot dimensions match the desired focal spot dimensions. A cathode cup is created based on the computer-simulated model.
摘要翻译：提供阴极杯。阴极杯包括一个或多个口袋; 以及与所述一个或多个袋相关联的一个或多个细丝。存在与细丝相同数量的口袋。每个口袋与正好一个细丝相关联，并且被配置成具有针对长丝长度的长度。阴极杯可用于具有阳极和阴极的X射线系统中。提供电子束成形的方法。该方法包括以下步骤。创建了阴极杯的计算机模拟模型。该模型用于预测焦点尺寸。将预测的焦点尺寸与期望的焦点尺寸进行比较。重复创建，使用和比较的步骤，直到预测的焦斑尺寸与期望的焦点尺寸匹配。基于计算机模拟模型创建阴极杯。

5. 发明申请

US20070007874A1 REDUCED FOCAL SPOT MOTION IN A CT X-RAY TUBE 有权
标题翻译： CT X射线管中减少的焦点运动
公开(公告)号：US20070007874A1
公开(公告)日：2007-01-11
申请号：US11160796
申请日：2005-07-08
申请人： Wayne Block , Edward Emaci , Sergio Lemaitre , Ron Hockersmith
发明人： Wayne Block , Edward Emaci , Sergio Lemaitre , Ron Hockersmith
IPC分类号： H01J29/74
CPC分类号： H01J35/10 , H01J35/14 , H01J2235/1093 , H05G1/52
摘要： An x-ray tube assembly is provided comprising a tube casing assembly including a plurality of vertical mount posts. An insulator plate is mounted to the plurality of vertical mount posts such that the insulator plate can translate vertically on the posts. A cathode assembly is mounted to the insulator plate and generates both an eccentric moment and a vertical expansion in response to a cathode power load. A semi-compressible element is positioned between at least one of the vertical mount posts and the insulator plate. The semi-compressible element becomes incompressible at a cathode power threshold such that the vertical expansion is translated into a correction moment countering the eccentric moment.
摘要翻译：提供一种X射线管组件，其包括管壳组件，其包括多个垂直安装柱。绝缘板安装到多个垂直安装柱，使得绝缘板可以在柱上垂直平移。阴极组件安装到绝缘板上，并响应于阴极功率负载产生偏心力矩和垂直膨胀。半可压缩元件位于至少一个垂直安装柱和绝缘板之间。半可压缩元件在阴极功率阈值处变得不可压缩，使得垂直膨胀被转换成抵抗偏心力矩的校正时刻。

6. 发明授权

US06762540B2 One-piece tab assembly for a cathode cup of an X-ray imaging machine 有权
标题翻译：用于X射线成像机的阴极杯的一体式片组件
公开(公告)号：US06762540B2
公开(公告)日：2004-07-13
申请号：US10065508
申请日：2002-10-25
申请人： Thomas D. Schaefer , J. Scott Price , Sergio Lemaitre
发明人： Thomas D. Schaefer , J. Scott Price , Sergio Lemaitre
IPC分类号： H01J146
CPC分类号： H01J35/06
摘要： A cathode assembly (43) for a computed tomography scanning system (10) is provided. The cathode assembly (43) includes a one-piece tab assembly (52) for simple and relatively quick installation on a cathode cup (44). In one embodiment, the one-piece tab assembly (52) has two rail portions (56) extending substantially across its length. These rail portions (56) are intended for insertion into channels (50) formed within the cathode cup (44) and for properly locating the one-piece tab assembly (52) in a desired position relative to the filament (46). The assembly (52) further includes two tab portions (58, 58″) located on opposing ends of the rail portions (56). The tab portions (58, 58″) each include a main body portion (62) and a flap portion (54) extending from the main body portion (62). The main body portion (62) extends between the two rail portions (56) and has a mounting surface for attaching the one-piece tab assembly (52) to the cathode cup (44). The flap portions (54) extend substantially perpendicular from the main body portions (62) and direct the electron beam emitted by the filament (46).
摘要翻译：提供了一种用于计算机断层摄影扫描系统（10）的阴极组件（43）。阴极组件（43）包括用于在阴极杯（44）上简单且相对快速地安装的单片式舌片组件（52）。在一个实施例中，一体式翼片组件（52）具有基本上跨越其长度延伸的两个轨道部分（56）。这些轨道部分（56）旨在用于插入形成在阴极杯（44）内的通道（50）中，并且用于将一体式接头组件（52）适当地定位在相对于灯丝（46）的期望位置。组件（52）还包括位于轨道部分（56）的相对端上的两个突片部分（58,58“）。翼片部分（58,58“）各自包括从主体部分（62）延伸的主体部分（62）和翼片部分（54）。主体部分（62）在两个轨道部分（56）之间延伸并且具有用于将一体式接头组件（52）附接到阴极杯（44）的安装表面。翼片部分（54）从主体部分（62）基本上垂直延伸并引导由灯丝（46）发射的电子束。

7. 发明授权

US08401151B2 X-ray tube for microsecond X-ray intensity switching 有权
标题翻译： X射线管用于微秒X射线强度切换
公开(公告)号：US08401151B2
公开(公告)日：2013-03-19
申请号：US12639206
申请日：2009-12-16
申请人： Mark Alan Frontera , Yun Zou , Peter Andras Zavodszky , Sergio Lemaitre , Carey Shawn Rogers
发明人： Mark Alan Frontera , Yun Zou , Peter Andras Zavodszky , Sergio Lemaitre , Carey Shawn Rogers
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。

8. 发明授权

US08320521B2 Method and system for operating an electron beam system 有权
标题翻译：操作电子束系统的方法和系统
公开(公告)号：US08320521B2
公开(公告)日：2012-11-27
申请号：US12894781
申请日：2010-09-30
申请人： Yun Zou , Carey Shawn Rogers , Christopher David Unger , Mark Alan Frontera , Sergio Lemaitre
发明人： Yun Zou , Carey Shawn Rogers , Christopher David Unger , Mark Alan Frontera , Sergio Lemaitre
IPC分类号： A61B6/03 , H05G1/26
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。

9. 发明授权

US07280637B1 Systems, apparatus and methods for X-ray imaging 有权
标题翻译：用于X射线成像的系统，装置和方法
公开(公告)号：US07280637B1
公开(公告)日：2007-10-09
申请号：US11391152
申请日：2006-03-28
申请人： Jizhong Chen , Sergio Lemaitre , Brian Douglas Lounsberry
发明人： Jizhong Chen , Sergio Lemaitre , Brian Douglas Lounsberry
IPC分类号： H01J35/06
CPC分类号： H01J35/06 , H01J35/14 , H01J2235/068
摘要： A cathode cup is provided. The cathode cup includes one or more pockets; and one or more filaments associated with the one or more pockets. A same number of pockets as filaments are present. Each pocket is associated with exactly one filament and is configured to have a length that is tailored to a length of the filament. The cathode cup can be used in an X-ray system having an anode and a cathode. A method of electron beam shaping is provided. The method includes the following steps. A computer-simulated model of a cathode cup is created. The model is used to predict focal spot dimensions. The predicted focal spot dimensions are compared to desired focal spot dimensions. The steps of creating, using and comparing are repeated until the predicted focal spot dimensions match the desired focal spot dimensions. A cathode cup is created based on the computer-simulated model.
摘要翻译：提供阴极杯。阴极杯包括一个或多个口袋; 以及与所述一个或多个袋相关联的一个或多个细丝。存在与细丝相同数量的口袋。每个口袋与正好一个细丝相关联，并且被配置成具有针对长丝长度的长度。阴极杯可用于具有阳极和阴极的X射线系统中。提供电子束成形的方法。该方法包括以下步骤。创建了阴极杯的计算机模拟模型。该模型用于预测焦点尺寸。将预测的焦点尺寸与期望的焦点尺寸进行比较。重复创建，使用和比较的步骤，直到预测的焦斑尺寸与期望的焦点尺寸匹配。基于计算机模拟模型创建阴极杯。

10. 发明申请

US20070232183A1 Apparatus and Methods for Producing Multi-Electrode Cathode for X-Ray Tube 有权
标题翻译：用于生产X射线管多电极阴极的装置和方法
公开(公告)号：US20070232183A1
公开(公告)日：2007-10-04
申请号：US11278398
申请日：2006-03-31
申请人： Sergio Lemaitre
发明人： Sergio Lemaitre
IPC分类号： H01J9/04
CPC分类号： H01J35/06 , H01J2235/068
摘要： Apparatus and methods are provided through which a multi-electrode cathode assembly can be manufactured comprising bonding a monolithic metal block to the nonconductive base; and thereafter machining the block to form at least one electrode.
摘要翻译：提供了可以制造多电极阴极组件的装置和方法，包括将单片金属块结合到非导电基底上; 然后加工该块以形成至少一个电极。

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