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61. 发明申请

US20060274889A1 Method and apparatus for controlling electron beam current 审中-公开
标题翻译：用于控制电子束电流的方法和装置
公开(公告)号：US20060274889A1
公开(公告)日：2006-12-07
申请号：US11415953
申请日：2006-05-02
申请人： Jianping Lu , Otto Zhou , Yuan Cheng
发明人： Jianping Lu , Otto Zhou , Yuan Cheng
IPC分类号： H01J35/00
CPC分类号： H01J35/06 , A61B6/032 , A61B6/4021 , A61B6/4028 , A61B6/405 , A61B6/4488 , A61B6/482 , B82Y10/00 , H01J3/021 , H01J35/065 , H01J35/08 , H01J35/105 , H01J35/14 , H01J35/22 , H01J35/28 , H01J35/30 , H01J2201/30469 , H01J2235/06 , H01J2235/062 , H01J2235/064 , H01J2235/068 , H05G1/34
摘要： An x-ray generating device includes a field emission cathode formed at least partially from a nanostructure-containing material having an emitted electron current density of at least 4 A/cm2. High energy conversion efficiency and compact design are achieved due to easy focusing of cold cathode emitted electrons and dramatic reduction of heating at the anode. In addition, by pulsing the field between the cathode and the gate or anode and focusing the electron beams at different anode materials, pulsed x-ray radiation with varying energy can be generated from a single device. Methods and apparatus for independent control of electron emission current and x-ray energy in x-ray tubes are also provided. The independent control can be accomplished by adjusting the distance between the cathode and anode. The independent control can also be accomplished by adjusting the temperature of the cathode. The independent control can also be accomplished by optical excitation of the cathode. The cathode can include field emissive materials such as carbon nanotubes.
摘要翻译： X射线产生装置包括至少部分地由具有至少4A / cm 2的发射电子电流密度的含纳米结构的材料形成的场致发射阴极。由于容易聚焦冷阴极发射电子并显着降低阳极的加热，因此实现了高能量转换效率和紧凑设计。此外，通过在阴极和栅极或阳极之间脉冲电场并将电子束聚焦在不同的阳极材料处，可以从单个器件产生具有变化能量的脉冲X射线辐射。还提供了用于独立控制X射线管中的电子发射电流和X射线能量的方法和装置。独立控制可以通过调节阴极和阳极之间的距离来实现。独立控制也可以通过调节阴极的温度来实现。独立控制也可以通过阴极的光学激发来实现。阴极可以包括诸如碳纳米管的场发射材料。

62. 发明申请

US20060269047A1 Device and method for generating an x-ray point source by geometric confinement 失效
公开(公告)号：US20060269047A1
公开(公告)日：2006-11-30
申请号：US11497252
申请日：2006-08-02
申请人： Hendrik Hamann , Yves Martin , Theodore van Kessel , Hemantha Wickramasinghe
发明人： Hendrik Hamann , Yves Martin , Theodore van Kessel , Hemantha Wickramasinghe
IPC分类号： H05G2/00 , G21G4/00 , H01J35/00
CPC分类号： H01J35/08 , G21K7/00 , H01J2235/083 , H01J2235/086
摘要： A device for generating an x-ray point source includes a target, and an electron source for producing electrons which intersect with the target to generate an x-ray point source having a size which is confined by a dimension of the target.

63. 发明申请

US20060262905A1 Reduced divergence electromagnetic field configuration 审中-公开
标题翻译：降低发散电磁场配置
公开(公告)号：US20060262905A1
公开(公告)日：2006-11-23
申请号：US10557646
申请日：2004-05-20
申请人： Leonard Reiffel
发明人： Leonard Reiffel
IPC分类号： H05G2/00 , G21G4/00 , H01J35/00
CPC分类号： A61N5/1042 , A61N2/002 , A61N2/02 , A61N2005/1085 , G21K1/093
摘要： A photon beam dose enhancement is controlled by configuring at least two magnets in a staggered opposing coil configuration, such that the first central field vector of the first magnet is more anti-parallel than parallel to the second central field vector of the second magnet. In one form, the first central field vector of the first magnet is rotated between ±90° to 180° to the second central field vector of the second magnet. Typically, the first central field vector is noncoaxial with the second central field vector. The resulting magnetic field configuration has a larger portion of higher magnitude magnetic field that can reach deeper into a target body and provides additional space within the region of higher magnitude that can accommodate larger portions of a body.
摘要翻译：通过配置交错相对的线圈配置中的至少两个磁体来控制光子束剂量增强，使得第一磁体的第一中心场矢量比平行于第二磁体的第二中心场矢量更反平行。在一种形式中，第一磁体的第一中心场向量与第二磁体的第二中心场矢量在±90°至180°之间旋转。通常，第一中心场矢量与第二中心场矢量非同轴。所得到的磁场结构具有更大的较大的磁场强度，可以更深地进入目标体，并在较大的范围内提供额外的空间，这些空间可容纳身体的较大部分。

64. 发明申请

US20060251217A1 Compact, high-flux, short-pulse x-ray source 有权
标题翻译：紧凑型，高通量，短脉冲X射线源
公开(公告)号：US20060251217A1
公开(公告)日：2006-11-09
申请号：US11391085
申请日：2006-03-27
申请人： Franz Kaertner , William Graves , David Moncton , Fatih Ilday
发明人： Franz Kaertner , William Graves , David Moncton , Fatih Ilday
IPC分类号： H05G2/00 , G21G4/00 , H01J35/00
CPC分类号： H05G2/00
摘要： An x-ray source that can produce high-brilliance x-rays at a low cost and from a small footprint includes a radiofrequency (RF) photoinjector, an accelerator module (such as a linear superconducting accelerator moducle), a high-power optical laser apparatus, and a passive enhancement cavity. A stream of photons generated by the laser apparatus is accumulated in the enhancement cavity, and an electron stream from the photoinjector are then directed through the enhancement cavity to collide with the photons and generate high-brilliance x-rays via inverse-Compton scattering.
摘要翻译：可以以低成本和小占地面积产生高亮度x射线的X射线源包括射频（RF）光电注射器，加速器模块（例如线性超导加速器模块），大功率光学激光器设备和被动增强腔。由激光装置产生的光子流聚集在增强腔中，然后将来自光引射器的电子流引导通过增强腔与光子相撞并通过反康普顿散射产生高亮度的X射线。

65. 发明申请

US20060140344A1 X-ray tube cathode assembly and interface reaction joining process 有权
标题翻译： X射线管阴极组件和界面反应连接工艺
公开(公告)号：US20060140344A1
公开(公告)日：2006-06-29
申请号：US10547197
申请日：2004-02-20
申请人： Paul Xu , George Awad , Salvatore Perno , Qing Lu
发明人： Paul Xu , George Awad , Salvatore Perno , Qing Lu
IPC分类号： H01J35/32 , H01J35/00 , H01J35/22
CPC分类号： B23K1/0008 , B23K1/19 , H01J9/02 , H01J9/04 , H01J35/06
摘要： An x-ray tube cathode assembly (28) includes a support arm (36) comprising a first metal. A ceramic insulator (70, 82) has a first metalized surface (72, 86) wherein the metalized surfaces comprise a desired amount of the first metal. A first member of filler material (90) is in contact with the support arm (36) and the first metalized surface (72, 86) of the ceramic insulator (70, 82), the first member of filler material comprising at least a second metal (96a, 96b) wherein a first alloy system (FIG. 5) comprising the first and second metals includes an alloy minimum point percentage composition (P) of the first and second metals having a first alloy system minimum melting point (M) for the alloy minimum point percentage composition that is lower than both of the melting point of the first metal and second metal. A bonding region resulting from heating the cathode assembly causing diffusion bonding to proceed, the bonding region has a layer of alloy comprising the minimum point percentage composition (P) and the heating of the cathode assembly continues to a bonding temperature of at least the first alloy system minimum melting point (M) and holding at that temperature for a desired period of time.
摘要翻译： X射线管阴极组件（28）包括包括第一金属的支撑臂（36）。陶瓷绝缘体（70,82）具有第一金属化表面（72,86），其中金属化表面包含所需量的第一金属。填充材料（90）的第一部件与陶瓷绝缘体（70,82）的支撑臂（36）和第一金属化表面（72,86）接触，第一填料材料包括至少第二个金属（96a，96b），其中包括第一和第二金属的第一合金系统（图5）包括第一和第二金属的合金最小点百分比组成（P），其具有第一合金系统的最小熔点（M ），其低于第一金属和第二金属的熔点两者的合金最小点百分比组成。通过加热阴极组件导致扩散接合而进行的接合区域，接合区域具有包含最小点百分比组成（P）的合金层，并且阴极组件的加热持续至少第一合金的接合温度系统最小熔点（M），并在该温度下保持所需的时间。

66. 发明申请

US20060126789A1 Catheter with inflatable balloon assembly and optically activated x-ray source 审中-公开
标题翻译：具有充气气囊组件和光学激活的X射线源的导管
公开(公告)号：US20060126789A1
公开(公告)日：2006-06-15
申请号：US11009911
申请日：2004-12-10
申请人： Mark Dinsmore , Thomas Engel
发明人： Mark Dinsmore , Thomas Engel
IPC分类号： H01J35/32 , H01J35/00 , H01J35/22 , H05G2/00 , G21G4/00
CPC分类号： H01J35/32 , A61N5/1015 , H01J35/065 , H05H6/00
摘要： An apparatus delivers x-rays to at least a portion of an interior surface of a body cavity. The apparatus includes a flexible catheter, at least one balloon or inflatable element affixed to the catheter, one or more flexible probe assemblies, an x-ray generator assembly coupled to the distal end of each probe assembly, and a power supply means. The flexible catheter includes one or more interior channels, and each flexible probe assembly is slidably positionable within a respective interior channel of the catheter. Each balloon, when inflated, defines a predetermined surface contour disposed about an interior region of a body cavity. Each flexible probe includes a transmission path for transmitting activating energy, and may be an optical fiber for transmitting optical energy. The x-ray generator assembly includes an electron source and a target element. The electron source emits electrons in response to activating optical energy transmitted through the transmission path. The target element generates electrons in accordance with a desired radiation profile, in response to electrons impinging thereon.
摘要翻译：一种装置将x射线传送到体腔的内表面的至少一部分。该装置包括柔性导管，固定到导管的至少一个气囊或可充气元件，一个或多个柔性探针组件，联接到每个探针组件的远端的x射线发生器组件和电源装置。柔性导管包括一个或多个内部通道，并且每个柔性探针组件可滑动地定位在导管的相应内部通道内。当充气时，每个气囊限定围绕体腔的内部区域设置的预定表面轮廓。每个柔性探针包括用于传输激活能量的传输路径，并且可以是用于传输光能的光纤。 x射线发生器组件包括电子源和靶元件。电子源响应于通过传输路径传输的光能而发射电子。响应于撞击其上的电子，目标元件根据期望的辐射分布产生电子。

67. 发明申请

US20060126788A1 X-ray catheter assembly 有权
标题翻译： X光导管组装
公开(公告)号：US20060126788A1
公开(公告)日：2006-06-15
申请号：US11009910
申请日：2004-12-10
申请人： Thomas Engel
发明人： Thomas Engel
IPC分类号： H05G2/00 , G21G4/00 , H01J35/00
CPC分类号： A61N5/1001 , A61M25/0108 , A61N5/1014 , A61N2005/1022
摘要： An apparatus for applying x-rays to an interior surface of a body cavity includes a catheter assembly, and one or more flexible probe assemblies. An x-ray generator assembly, including an optically activated x-ray source, is coupled to a distal end of each flexible probe assembly. The catheter assembly includes a body member defining one or more interior channels; an x-ray absorption control layer surrounding the body member; at least one inner tube enclosing the body member and the absorption control layer; at least one outer tube; and one or more inflatable elements coupled to the inner tube. The inflatable elements, when inflated, fixedly position the catheter assembly within the body cavity. Each flexible probe assembly is slidably positionable within at least one of the interior channels, and includes a transmission path adapted to transmit an activating energy, such as light from laser, onto a cathode within the x-ray source.
摘要翻译：用于将X射线施加到体腔的内表面的装置包括导管组件和一个或多个柔性探针组件。包括光学激活的X射线源的X射线发生器组件联接到每个柔性探针组件的远端。导管组件包括限定一个或多个内部通道的主体构件; 围绕身体构件的x射线吸收控制层; 封闭所述主体构件和所述吸收控制层的至少一个内管; 至少一个外管; 以及联接到内管的一个或多个可充气元件。充气元件在膨胀时将导管组件固定地定位在体腔内。每个柔性探针组件可滑动地定位在至少一个内部通道内，并且包括适于将激活能量（例如来自激光的光）传递到x射线源内的阴极上的传输路径。

68. 发明申请

US20060098780A1 Electron emitter assembly and method for adjusting a size of electron beams 失效
公开(公告)号：US20060098780A1
公开(公告)日：2006-05-11
申请号：US10904286
申请日：2004-11-02
申请人： Bruce Dunham , John Price , Colin Wilson
发明人： Bruce Dunham , John Price , Colin Wilson
IPC分类号： H05G2/00 , G21G4/00 , H01J35/00
CPC分类号： H01J35/065 , A61B6/032 , A61B6/4028
摘要： An electron emitter assembly and a method for adjusting a size of electron beams are provided. The electron emitter assembly includes a laser configured to emit a first light beam. The electron emitter assembly further includes a lens assembly configured to receive the first light beam. The lens assembly is configured to adjust a size of the first light beam between a first predetermined size and a second predetermined size larger than the first predetermined size. The lens assembly emits the first light beam toward a photo-cathode. The photo-cathode is configured to emit a first electron beam having a third predetermined size when the first light beam having the first predetermined size contacts the photo-cathode. The photo-cathode is further configured to emit a second electron beam having a fourth predetermined size when the first light beam having the second predetermined size contacts the photo-cathode. The electron emitter assembly further includes an anode configured to receive the first and second electrons beams from the photo-cathode.

69. 发明申请

US20060098779A1 Digital x-ray camera 有权
标题翻译：数码X光摄像机
公开(公告)号：US20060098779A1
公开(公告)日：2006-05-11
申请号：US10529806
申请日：2005-03-21
申请人： Clark Turner
发明人： Clark Turner
IPC分类号： H05G1/10 , H01J35/32 , H01J35/00 , H01J35/22
CPC分类号： A61B6/505 , A61B6/14 , A61B6/4405 , A61B6/4411 , A61B6/4488 , A61B6/508 , A61B6/548 , G01T7/00 , G01V5/0008
摘要： Portable x-ray devices and methods for using such devices are described. The devices have an x-ray tube powered by an integrated power system. The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have an integrated display component. With these components, the size and weight of the x-ray devices can be reduced and the portability of the devices enhanced. The x-ray devices also have an x-ray detecting means that is not structurally attached to the device and therefore is free standing. Consequently, the x-ray devices can also be used as a digital x-ray camera. The portable x-ray devices are especially useful for applications where portability is an important feature such as in field work, remote operations, and mobile operations such as nursing homes, home healthcare, or teaching classrooms. This portability feature can be particularly useful in multi-suite medical and dental offices where a single x-ray device can be used as a digital x-ray camera in multiple offices instead of requiring a separate device in every office.
摘要翻译：描述了便携式x射线装置及其使用方法。这些设备具有由集成电力系统供电的X射线管。 X射线管用含有高Z物质的低密度绝缘材料屏蔽。这些设备还可以具有集成的显示组件。利用这些部件，可以减小x射线装置的尺寸和重量，并且增强装置的便携性。 X射线装置还具有不结构地附接到装置的X射线检测装置，因此是独立的。因此，X射线设备也可以用作数字X射线摄像机。便携式x射线设备对于可移植性是重要功能的应用特别有用，例如在现场工作，远程操作和移动操作（例如养老院，家庭医疗保健或教学教室）中。这种可移植性特征在多套医疗和牙科诊所中特别有用，其中单个X射线设备可用作多个办公室的数字X射线摄像机，而不是在每个办公室中都需要单独的设备。

70. 发明申请

US20060093091A1 Extractor cup on a miniature x-ray tube 有权
标题翻译：抽出杯在微型x射线管上
公开(公告)号：US20060093091A1
公开(公告)日：2006-05-04
申请号：US11291020
申请日：2005-11-30
申请人： Paul Lovoi , Petre Vatahov , Earl Dozier , Peter Smith , Leonard Reed , Robert Neimeyer
发明人： Paul Lovoi , Petre Vatahov , Earl Dozier , Peter Smith , Leonard Reed , Robert Neimeyer
IPC分类号： H05G2/00 , G21G4/00 , H01J35/00
CPC分类号： H01J35/06 , H01J35/14
摘要： Methods for connecting electrical potential to an extractor cup at the cathode of a miniature x-ray tube are disclosed. The various connection schemes are designed to form a rugged and conveniently manufacturable connection between the metal extractor cup and one side of the cathode filament, so that the extractor cup shapes the path of electrons as desired en route to the anode of the tube. Some of the disclosed connections involve evaporation of conductive metal or other materials off the filament when the filament is first activated. Others involve applying a paste or paint conductive precursor directly to a base to connect a post and the extractor, the paste being heat-cured after the completion of assembly. Others involve a fine wire or spring strip from one filament post to the walls of the extractor cup. Other schemes include welded or brazed wires or foil, crimping, pinching, swaging and other connections, all made inside the tube enclosure.
摘要翻译：公开了将电位连接到微型X射线管的阴极处的抽出杯的方法。各种连接方案被设计成在金属提取器杯和阴极丝的一侧之间形成坚固且方便可制造的连接，使得提取器杯根据需要在管的阳极途中形成电子的路径。所公开的一些连接涉及当灯丝首先被激活时将导电金属或其它材料从灯丝上蒸发掉。其他方面涉及将糊状物或涂料导电性前体直接施加到基底以连接柱和提取器，膏体在组装完成之后被热固化。其他涉及从一个细丝柱到提取杯的壁的细丝或弹簧条。其他方案包括焊接或钎焊线或箔，压接，夹紧，模锻和其他连接，全部在管外壳内。

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