公开(公告)号：US20060256925A1

公开(公告)日：2006-11-16

申请号：US11127343

申请日：2005-05-11

申请人： Gary Virshup ,  James Boye ,  Edward Seppi ,  Heinrich Riem ,  Govin Dasani ,  Edward Shapiro

发明人： Gary Virshup ,  James Boye ,  Edward Seppi ,  Heinrich Riem ,  Govin Dasani ,  Edward Shapiro

IPC分类号： G21K3/00

CPC分类号： G21K1/10

摘要： Devices and methods for implementing selective, or asymmetric, attenuation of an x-ray beam. In one example, a filter is provided that is substantially in the form of a wedge where some portions of the filter are thicker, and thus provide greater attenuation, than other, thinner portions of the filter. The filter is situated between the target surface of the anode and the x-ray subject so that x-rays generated by the target pass through the filter before reaching the x-ray subject. Specifically, the filter is oriented so that the thicker portion of the filter receives the higher intensity portion of the x-ray beam, while the thinner portion of the filter receives the relatively lower intensity portion of the x-ray beam. Thus, the gain profile of the x-ray beam is flattened so that the intensity, or flux, of the x-ray beam is relatively uniform throughout a substantial portion of the beam profile.

摘要翻译： 用于实现X射线束的选择性或不对称衰减的装置和方法。 在一个示例中，提供基本上为楔形件的过滤器，其中过滤器的一些部分比过滤器的其它较薄部分更厚，因此提供更大的衰减。 过滤器位于阳极的目标表面和X射线对象之间，使得由目标产生的x射线在到达x射线物体之前通过过滤器。 具体地，过滤器被定向成使得过滤器的较厚部分接收x射线束的较高强度部分，而过滤器的较薄部分接收x射线束的较低强度部分。 因此，x射线束的增益分布被平坦化，使得x射线束的强度或通量在光束轮廓的整个实质部分中相对均匀。

公开(公告)号：US07397904B2

公开(公告)日：2008-07-08

申请号：US11127343

申请日：2005-05-11

申请人： Gary Virshup ,  James Boye ,  Edward J. Seppi ,  Heinrich Riem ,  Govin Dasani ,  Edward Shapiro

发明人： Gary Virshup ,  James Boye ,  Edward J. Seppi ,  Heinrich Riem ,  Govin Dasani ,  Edward Shapiro

IPC分类号： G21K3/00

CPC分类号： G21K1/10

摘要： Devices and methods for implementing selective, or asymmetric, attenuation of an x-ray beam. In one example, a filter is provided that is substantially in the form of a wedge where some portions of the filter are thicker, and thus provide greater attenuation, than other, thinner portions of the filter. The filter is situated between the target surface of the anode and the x-ray subject so that x-rays generated by the target pass through the filter before reaching the x-ray subject. Specifically, the filter is oriented so that the thicker portion of the filter receives the higher intensity portion of the x-ray beam, while the thinner portion of the filter receives the relatively lower intensity portion of the x-ray beam. Thus, the gain profile of the x-ray beam is flattened so that the intensity, or flux, of the x-ray beam is relatively uniform throughout a substantial portion of the beam profile.

摘要翻译： 用于实现X射线束的选择性或不对称衰减的装置和方法。 在一个示例中，提供基本上为楔形件的过滤器，其中过滤器的一些部分比过滤器的其它较薄部分更厚，因此提供更大的衰减。 过滤器位于阳极的目标表面和X射线对象之间，使得由目标产生的x射线在到达x射线物体之前通过过滤器。 具体地，过滤器被定向成使得过滤器的较厚部分接收x射线束的较高强度部分，而过滤器的较薄部分接收x射线束的较低强度部分。 因此，x射线束的增益分布被平坦化，使得x射线束的强度或通量在光束轮廓的整个实质部分中相对均匀。

公开(公告)号：US20060050851A1

公开(公告)日：2006-03-09

申请号：US10933852

申请日：2004-09-03

申请人： James Boye

发明人： James Boye

IPC分类号： H01J35/10 ,  H01J35/24 ,  H01J35/26 ,  H01J35/28

CPC分类号： H01J35/16 ,  H01J35/10 ,  H01J2235/1208 ,  H01J2235/167

摘要： A shield structure is provided that is suitable for use in connection with an x-ray device that includes an anode and cathode disposed in a vacuum enclosure in a spaced apart arrangement so that a target surface of the anode is positioned to receive electrons emitted by the cathode. The shield structure is configured to be interposed between the anode and the cathode and includes an interior surface that defines an aperture through which the electrons are passed from the cathode to the target surface of the anode. Additionally, the aperture includes an inlet and an outlet sized so that the area of the inlet is relatively smaller than the area of the outlet. Finally, the shield structure is situated in the x-ray device such that the inlet of the aperture is positioned near the cathode and the outlet of the aperture is positioned near the anode target surface.

公开(公告)号：US20070183576A1

公开(公告)日：2007-08-09

申请号：US11343599

申请日：2006-01-31

申请人： James Burke ,  Charles Chidester ,  Bruce Cain ,  Robert Treseder ,  James Boye ,  Ray Daly ,  Ricky Smith ,  Paul Christean

发明人： James Burke ,  Charles Chidester ,  Bruce Cain ,  Robert Treseder ,  James Boye ,  Ray Daly ,  Ricky Smith ,  Paul Christean

IPC分类号： H01J35/06

CPC分类号： H01J35/06 ,  H01J2235/06 ,  H01J2235/1026 ,  H01J2235/1216

摘要： A cathode assembly including certain features designed to protect the integrity of a filament contained therein is disclosed. In particular, the cathode assembly is configured to prevent damage to the filament should it inadvertently contact another portion of the cathode assembly. In an example embodiment, an x-ray tube incorporating features of the present invention is disclosed. The x-ray tube includes an evacuated enclosure containing a cathode assembly and an anode. The cathode assembly includes a head portion having a head surface. A slot is defined on the head surface and an electron-emitting filament is included in the slot. A protective surface is defined on the head surface proximate to a central portion of the filament. The protective surface in one embodiment is composed of tungsten and is configure to prevent fusing of the filament to the protective surface should the filament inadvertently contact the protective surface.

摘要翻译： 公开了一种阴极组件，其包括设计成保护其中所包含的细丝的完整性的某些特征。 特别地，阴极组件被构造成如果它不经意地接触阴极组件的另一部分，则防止对细丝的损坏。 在示例性实施例中，公开了包含本发明的特征的X射线管。 x射线管包括一个包含阴极组件和一个阳极的真空外壳。 阴极组件包括具有头表面的头部部分。 在头表面上限定狭缝，并且在槽中包括电子发射丝。 保护表面限定在靠近灯丝中心部分的头表面上。 一个实施例中的保护表面由钨组成，并且被配置为当灯丝不经意地接触保护表面时防止灯丝熔合到保护表面。

公开(公告)号：US20060050850A1

公开(公告)日：2006-03-09

申请号：US10933806

申请日：2004-09-03

申请人： Gregory Andrews ,  James Boye

发明人： Gregory Andrews ,  James Boye

IPC分类号： H05G2/00 ,  G21G4/00 ,  H01J35/00

CPC分类号： H01J35/10 ,  H01J35/16 ,  H01J2235/1216 ,  H01J2235/167

摘要： A shield structure and focal spot control assembly is provided for use in connection with an x-ray device that includes an anode and cathode disposed in a vacuum enclosure in a spaced apart arrangement so that a target surface of the anode is positioned to receive electrons emitted by the cathode. The shield structure is configured to be interposed between the anode and the cathode and includes an interior surface that defines an aperture or other opening through which the electrons are passed from the cathode to the target surface of the anode. Additionally, fluid passageways defined in connection with the shield structure enable cooling of the shield structure. Finally, a magnetic device disposed proximate the cathode facilitates control of the location of the focal spot on the target surface of the anode.

公开(公告)号：US07657002B2

公开(公告)日：2010-02-02

申请号：US11343599

申请日：2006-01-31

申请人： James Burke ,  Charles Lynn Chidester ,  Bruce A Cain ,  Rob Treseder ,  James Boye ,  Ray Daly ,  Ricky Smith ,  Paul Gene Christean

发明人： James Burke ,  Charles Lynn Chidester ,  Bruce A Cain ,  Rob Treseder ,  James Boye ,  Ray Daly ,  Ricky Smith ,  Paul Gene Christean

IPC分类号： H01J35/06

CPC分类号： H01J35/06 ,  H01J2235/06 ,  H01J2235/1026 ,  H01J2235/1216

摘要： A cathode assembly including certain features designed to protect the integrity of a filament contained therein is disclosed. In particular, the cathode assembly is configured to prevent damage to the filament should it inadvertently contact another portion of the cathode assembly. In an example embodiment, an x-ray tube incorporating features of the present invention is disclosed. The x-ray tube includes an evacuated enclosure containing a cathode assembly and an anode. The cathode assembly includes a head portion having a head surface. A slot is defined on the head surface and an electron-emitting filament is included in the slot. A protective surface is defined on the head surface proximate to a central portion of the filament. The protective surface in one embodiment is composed of tungsten and is configure to prevent fusing of the filament to the protective surface should the filament inadvertently contact the protective surface.

摘要翻译： 公开了一种阴极组件，其包括设计成保护其中所包含的细丝的完整性的某些特征。 特别地，阴极组件被构造成如果它不经意地接触阴极组件的另一部分，则防止对细丝的损坏。 在示例性实施例中，公开了包含本发明的特征的X射线管。 x射线管包括一个包含阴极组件和一个阳极的真空外壳。 阴极组件包括具有头表面的头部部分。 在头表面上限定狭缝，并且在槽中包括电子发射丝。 保护表面限定在靠近灯丝中心部分的头表面上。 一个实施例中的保护表面由钨组成，并且被配置为当灯丝不经意地接触保护表面时防止灯丝熔合到保护表面。

公开(公告)号：US20080019483A1

公开(公告)日：2008-01-24

申请号：US11751603

申请日：2007-05-21

申请人： Gregory Andrews ,  James Boye

发明人： Gregory Andrews ,  James Boye

IPC分类号： G21K1/02

CPC分类号： H01J35/10 ,  H01J35/16 ,  H01J2235/1216 ,  H01J2235/167

摘要： A shield structure and focal spot control assembly is provided for use in connection with an x-ray device that includes an anode and cathode disposed in a vacuum enclosure in a spaced apart arrangement so that a target surface of the anode is positioned to receive electrons emitted by the cathode. The shield structure is configured to be interposed between the anode and the cathode and includes an interior surface that defines an aperture or other opening through which the electrons are passed from the cathode to the target surface of the anode. Additionally, fluid passageways defined in connection with the shield structure enable cooling of the shield structure. Finally, a magnetic device disposed proximate the cathode facilitates control of the location of the focal spot on the target surface of the anode.

摘要翻译： 提供了一种屏蔽结构和焦点控制组件，其用于与包括以间隔布置布置在真空外壳中的阳极和阴极的x射线装置结合使用，以使得阳极的目​​标表面被定位成接收发射的电子 由阴极。 屏蔽结构被配置为插入在阳极和阴极之间并且包括内表面，其限定孔或其它开口，电子从阴极传播到阳极的目标表面。 此外，与屏蔽结构相关联地限定的流体通道使得能够冷却屏蔽结构。 最后，靠近阴极设置的磁性装置有助于控制焦斑位于阳极的目标表面上的位置。