公开(公告)号：US08067813B2

公开(公告)日：2011-11-29

申请号：US11687495

申请日：2007-03-16

申请人： Michael Dean Wright

发明人： Michael Dean Wright

IPC分类号： H01L27/146

CPC分类号： H01L27/12 ,  H01L27/1463 ,  H01L27/14665 ,  H01L31/1133

摘要： An integrated photosensitive device with a metal-insulator-semiconductor (MIS) photodiode constructed with one or more substantially continuous layers of semiconductor material and with a substantially continuous layer of dielectric material.

摘要翻译： 一种具有金属 - 绝缘体半导体（MIS）光电二极管的集成光敏器件，其由一个或多个基本连续的半导体材料层和基本上连续的介电材料层构成。

公开(公告)号：US20100039051A1

公开(公告)日：2010-02-18

申请号：US12191145

申请日：2008-08-13

申请人： James Clayton ,  Carsten Weil ,  Wolfgang Arnold ,  David Whittum

发明人： James Clayton ,  Carsten Weil ,  Wolfgang Arnold ,  David Whittum

IPC分类号： H05H7/02

CPC分类号： H05H7/02

摘要： An apparatus for use in a process to regulate power for a particle accelerator includes a first circulator, a second circulator, a tee coupled between the first and the second circulator, and a tuner coupled to the tee. An apparatus for use in a process to regulate power for a particle accelerator includes a first circulator, a second circulator, a 3-dB coupler coupled between the first and the second circulator, and a tuner coupled to the 3-dB coupler.

摘要翻译： 用于调节粒子加速器功率的过程的装置包括第一循环器，第二循环器，耦合在第一和第二循环器之间的三通和耦合到三通的调谐器。 用于调节粒子加速器功率的过程的装置包括第一循环器，第二循环器，耦合在第一和第二循环器之间的3-dB耦合器以及耦合到3-dB耦合器的调谐器。

公开(公告)号：US20090129549A1

公开(公告)日：2009-05-21

申请号：US11944188

申请日：2007-11-21

申请人： Gary Fredric Virshup

发明人： Gary Fredric Virshup

IPC分类号： H01J35/06

CPC分类号： H01J35/26

摘要： An x-ray tube having a reduced spacing between the focal spot of an anode and an adjacent end wall of an evacuated enclosure is disclosed. This in turn positions the tube relatively closer to the chest wall of a patient during mammography procedures. In one embodiment, the x-ray tube comprises an evacuated enclosure having first and second ends interconnected by a cylindrical side wall. The evacuated enclosure includes a rotor assembly having a bearing assembly and a stem. An anode is rotatably supported by the stem of the rotor assembly and includes a target surface and an opposite second surface. The target surface is positioned to face the bearing assembly, while the second surface is positioned to face the first end of the evacuated enclosure, with no intervening structure interposed therebetween. A cathode is included to emit electrons for impingement on a focal spot of the focal track.

摘要翻译： 公开了一种具有减小的阳极焦点与抽空外壳的相邻端壁之间的间隔的X射线管。 这在乳房X射线摄影过程中又将管定位在更靠近患者胸壁的位置。 在一个实施例中，X射线管包括具有通过圆柱形侧壁互连的第一和第二端的抽真空的外壳。 抽真空的外壳包括具有轴承组件和杆的转子组件。 阳极由转子组件的杆可旋转地支撑并且包括目标表面和相对的第二表面。 目标表面定位成与轴承组件相对，而第二表面被定位成面对抽真空的外壳的第一端，其间没有中间的结构。 包括阴极以发射电子以撞击焦点轨迹的焦点。

公开(公告)号：US20090086898A1

公开(公告)日：2009-04-02

申请号：US11863124

申请日：2007-09-27

申请人： John E. Richardson ,  Robert Clark Treseder

发明人： John E. Richardson ,  Robert Clark Treseder

IPC分类号： H01J35/14 ,  G01N23/223

CPC分类号： G01N23/223 ,  G01N2223/076 ,  H01J35/08 ,  H01J35/14 ,  H01J35/18

摘要： An x-ray device and method useful in performing close coupled sample analyses. The x-ray device includes an evacuated enclosure having a window and in which is disposed a cathode assembly, control grid, insulator, and anode arranged so that the anode is interposed between the electron source and the window. The anode includes a target surface oriented toward the window and the anode defines a drift tunnel which is substantially aligned with a hollow defined by the insulator. The control grid can be used to influence the energy of the electrons emitted by the filament of the cathode assembly. A high voltage field between the anode and filament causes electrons emitted by the cathode to accelerate rapidly through the insulator. After accelerating to an energy level consistent with the high voltage field, the electrons then pass through the drift tunnel without gaining any additional appreciable energy. The potential difference between the target surface and the window causes the drifting electrons to decelerate, and eventually stop, before they can strike the window. The decelerated electrons then re-accelerate, under the influence of the potential between the window and the anode, toward the target surface, striking the target surface and producing x-rays which are directed through the window so as to impact a sample. One or more detectors proximate to the sample sense the characteristic response emitted by the sample when it is struck by the x-rays produced by the x-ray tube. A computer in communication with the detectors facilitates processing and analysis of the characteristic response sensed by the detectors.

摘要翻译： 用于执行紧密耦合的样本分析的x射线装置和方法。 x射线装置包括具有窗口的抽真空的外壳，其中设置有阴极组件，控制栅极，绝缘体和阳极，其布置成阳极插入在电子源和窗口之间。 阳极包括朝向窗口定向的目标表面，并且阳极限定了与由绝缘体限定的中空基本上对准的漂移隧道。 控制栅格可用于影响由阴极组件的灯丝发射的电子的能量。 阳极和灯丝之间的高电压场导致阴极发射的电子通过绝缘体快速加速。 在加速到与高电压场一致的能级之后，电子然后通过漂移隧道，而没有获得任何额外的可观的能量。 目标表面和窗口之间的电位差导致漂移电子减速，并最终停止，然后才能撞击窗户。 然后，减速的电子在窗口和阳极之间的电势的影响下再加速，朝向目标表面，撞击目标表面，并产生被引导通过窗口以便冲击样品的x射线。 靠近样品的一个或多个检测器感测到当被X射线管产生的X射线撞击时由样品发射的特征响应。 与检测器通信的计算机便于对由检测器感测的特征响应的处理和分析。

公开(公告)号：US20090080617A1

公开(公告)日：2009-03-26

申请号：US11861131

申请日：2007-09-25

申请人： Gregory Andrews

发明人： Gregory Andrews

IPC分类号： H01J35/16 ,  B22D19/00 ,  B22F3/24

CPC分类号： B22D19/00 ,  B22F7/06 ,  C22C1/045 ,  H01J35/06 ,  H01J2235/167 ,  H01J2235/168

摘要： An x-ray tube electron shield is disclosed for interposition between an electron emitter and an anode configured to receive the emitted electrons. The electron shield is configured to withstand the elevated levels of heat produced by electrons backscattered from the anode and incident on the electron shield. This in turn equates to a reduced incidence of failure in the electron shield. In one embodiment the electron shield includes a body that defines a bowl-shaped aperture having a narrowed throat segment. The body of the electron shield includes a first body portion, a second body portion, and a disk portion. These portions cooperate to define the bowl and the throat segment. The throat segment and the lower portion of the bowl are composed of a refractory material and correspond with the regions of the electron shield that are impacted by relatively more backscattered electrons from the anode surface.

摘要翻译： 公开了用于插入电子发射器和被配置为接收所发射的电子的阳极之间的X射线管电子屏蔽。 电子屏蔽被配置为承受从阳极反向散射并入射在电子屏蔽上的电子产生的升高的热量。 这反过来等于电子屏蔽中故障发生率的降低。 在一个实施例中，电子屏蔽包括限定具有窄的喉部段的碗形孔的主体。 电子屏蔽体包括第一主体部分，第二主体部分和盘部分。 这些部分配合以限定碗和喉部。 碗的节段和下部由耐火材料组成，并且与电子屏蔽的区域相对应，该区域受到来自阳极表面的相对较多背向散射的电子的影响。

公开(公告)号：US07436932B2

公开(公告)日：2008-10-14

申请号：US11165972

申请日：2005-06-24

申请人： James E. Clayton

发明人： James E. Clayton

IPC分类号： H01J35/08

CPC分类号： G01N23/005 ,  Y10T29/531

摘要： In one example, a radiation source comprises a housing and an acceleration chamber within the housing, with a peak acceleration energy greater than the lowest neutron production threshold of tantalum. A source of charged particles is supported by the housing to emit charged particles into the acceleration chamber. A target is supported by the housing downstream of the acceleration chamber. The target consists essentially of at least one isotope having a neutron production threshold greater than the peak acceleration energy. No neutrons are therefore generated. The source may also comprise a collimator, target shielding, and/or housing shielding comprising at least one isotope having a neutron production threshold greater than the peak acceleration energy, reducing or eliminating neutron generation as compared to the prior art, as well. Systems comprising the source, methods of operation of the source, and methods of manufacture of the source are also disclosed.

摘要翻译： 在一个示例中，辐射源包括壳体内的壳体和加速室，其峰值加速能量大于钽的最低中子产生阈值。 带电粒子的源由壳体支撑，以将带电粒子发射到加速室中。 目标由加速室下游的外壳支撑。 目标基本上由至少一个具有大于峰值加速能量的中子产生阈值的同位素组成。 因此不产生中子。 源还可以包括准直仪，目标屏蔽和/或壳体屏蔽，其包括具有大于峰值加速能量的中子产生阈值的至少一个同位素，与现有技术相比，减少或消除中子产生。 还公开了包括源的源，源的操作方法和源的制造方法的系统。

公开(公告)号：US20080237481A1

公开(公告)日：2008-10-02

申请号：US11731170

申请日：2007-03-29

申请人： George Zentai ,  Larry Partain ,  William Wei-Yu Yao ,  Richard Weisfield

发明人： George Zentai ,  Larry Partain ,  William Wei-Yu Yao ,  Richard Weisfield

IPC分类号： G01T1/24 ,  H01L27/146

CPC分类号： H01L27/14676 ,  G01T1/244 ,  H01L27/14618 ,  H01L27/1462 ,  H01L2924/0002 ,  H01L2924/00

摘要： Improved corrosion resistance for direct X-ray imaging detectors is obtained by providing a pixelated, electrically conductive barrier layer between the X-ray sensitive material and the pixel electrodes. Each barrier layer can cover part or all of its corresponding pixel electrode. In cases where pixel electrodes makes contact to underlying circuitry through vertical vias, it is preferred for the barrier layers to cover the via sections of the pixel electrodes. The barrier layers for each pixel electrode can be spaced apart from each other, or they can all be included within a continuous film on top of the pixel electrodes. Such a continuous film can be pixelated by spatially modulating its properties (e.g., thickness, doping) to significantly reduce lateral conductivity from pixel to pixel.

摘要翻译： 通过在X射线敏感材料和像素电极之间提供像素化的导电阻挡层，可以获得直接X射线成像检测器的耐腐蚀性。 每个阻挡层可以覆盖其对应的像素电极的部分或全部。 在像素电极通过垂直通孔与底层电路接触的情况下，优选阻挡层覆盖像素电极的通孔部分。 每个像素电极的阻挡层可以彼此间隔开，或者它们都可以包括在像素电极顶部的连续膜内。 这样的连续膜可以通过空间调节其性质（例如，厚度，掺杂）而被像素化，以显着降低从像素到像素的横向电导率。

公开(公告)号：US07402822B2

公开(公告)日：2008-07-22

申请号：US11447366

申请日：2006-06-05

申请人： Timothy Guertin ,  Marcel R. Marc

发明人： Timothy Guertin ,  Marcel R. Marc

IPC分类号： G21G1/00

CPC分类号： A61N5/10 ,  A61N5/1079 ,  A61N5/1081 ,  A61N5/1084 ,  A61N2005/1087 ,  H01J2235/186 ,  H05H7/00

摘要： An improved particle beam treatment system optionally includes exchangeable particle beam nozzles. These particle beam nozzles may be automatically moved from a storage location to a particle beam path or between particle beam paths for use in medical applications. Movement may be achieved using a conveyance, gantry, rail system, or the like. The improved particle beam treatment system optionally also includes more than two alternative particle beam paths. These alternative particle beam paths may be directed to a patient from a variety of different angles and in different planes.

摘要翻译： 改进的粒子束处理系统可选地包括可交换的粒子束喷嘴。 这些粒子束喷嘴可以自动地从存储位置移动到粒子束路径或用于医疗应用的粒子束路径之间。 可以使用运输工具，龙门架，轨道系统等实现运动。 改进的粒子束处理系统可选地还包括两个以上替代粒子束路径。 这些替代的粒子束路径可以从各种不同的角度并且在不同的平面中被引导到患者。

公开(公告)号：US07397901B1

公开(公告)日：2008-07-08

申请号：US11712640

申请日：2007-02-28

申请人： Stanley Woodrow Johnsen

发明人： Stanley Woodrow Johnsen

IPC分类号： G21K1/02 ,  G21K1/04

CPC分类号： G21K1/04 ,  A61N5/1042 ,  A61N2005/1094 ,  G21K1/046

摘要： A multi-leaf collimator includes a number of independently adjustable leaves. Adjacent leaves overlap to prevent an incident beam of radiation from passing through a gap between them. The overlapping portions of the leaves are made of a first material, while the non-overlapping portions of the leaves are made of a second, different material.

摘要翻译： 多叶准直器包括多个可独立调节的叶片。 相邻的叶片重叠以防止入射的辐射束通过它们之间的间隙。 叶片的重叠部分由第一材料制成，而叶片的非重叠部分由第二种不同的材料制成。

公开(公告)号：US07394889B2

公开(公告)日：2008-07-01

申请号：US11437076

申请日：2006-05-18

申请人： Larry D. Partain ,  Stavros Prionas ,  Edward Seppi ,  Robert Sutherland ,  David Humber ,  Hassan Mostafavi ,  Felix Fernando ,  John Boone

发明人： Larry D. Partain ,  Stavros Prionas ,  Edward Seppi ,  Robert Sutherland ,  David Humber ,  Hassan Mostafavi ,  Felix Fernando ,  John Boone

IPC分类号： A61B6/04

CPC分类号： A61B6/4241 ,  A61B6/032 ,  A61B6/4085 ,  A61B6/482 ,  A61B6/502 ,  A61B6/507

摘要： A method of imaging a patient's uncompressed region of interest using X-ray cone beam computed tomography or cone beam digital tomography comprises the step of introducing an effective amount of a contrast agent to the uncompressed region of interest. A system for imaging a patient's uncompressed region of interest using cone beam computed tomography (CBCT) or cone beam digital tomography (CBDT) comprises an X-ray source transmitting an X-ray to the uncompressed region of interest, an image acquisition system acquiring a plurality of two-dimensional projection images data for a CBCT or CBDT data set with at least one of the projection images acquired in 35 milliseconds or less, and a processor generating a three-dimensional computed tomography image data set resolving voxels with dimensions of 0.4 mm or less in at least two orthogonal directions.

摘要翻译： 使用X射线锥束计算机断层摄影或锥束数字断层摄影术对患者未压缩感兴趣区域成像的方法包括将有效量的造影剂引入未压缩感兴趣区域的步骤。 使用锥形束计算机断层摄影（CBCT）或锥束数字断层摄影（CBDT）对患者未压缩感兴趣区域成像的系统包括将X射线发射到感兴趣的未压缩区域的X射线源，获取 多个用于CBCT或CBDT数据集的二维投影图像数据，其具有在35毫秒或更短时间内获取的至少一个投影图像，以及处理器，其生成尺寸为0.4mm的三维计算机断层摄影图像数据集 或至少两个正交方向。