公开(公告)号：US06329657B1

公开(公告)日：2001-12-11

申请号：US09070951

申请日：1998-05-01

申请人： Charles C. Watson ,  Ronald Nutt ,  J. Clifton Moyers ,  Michael E. Casey ,  William F. Jones

发明人： Charles C. Watson ,  Ronald Nutt ,  J. Clifton Moyers ,  Michael E. Casey ,  William F. Jones

IPC分类号： G01T1163

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： A coincidence transmission source serves to detect coincident activity from a radiation source. The coincidence transmission source includes a detector dedicated to collecting attenuation data. A collimated radiation source and a detector are positioned with respect to a tomography device such that only a selected strip of the imaging detector of the tomograph is illuminated such that events unrelated to the attenuation are eliminated. The coincidence transmission source includes a collimator in which is disposed a radiation source. An opening is defined by the collimator for exposing a selected portion of the imaging detectors of the tomograph device. Positioned behind the radiation source, relative to the imaging detectors, is the dedicated attenuation detector. The attenuation detector and collimator are designed to illuminate only a strip of the imaging detector, thereby eliminating events not of interest in the attenuation measurement. In a dual head tomograph device, one coincidence transmission source of the present invention is disposed opposite each bank of imaging detectors. The sources and the associated collimators are positioned to the side of each head at a slight angle relative to the respective head. The sources and detectors are fixed relative to the imaging heads. In order to obtain full coverage of the field of view (FOV) in the same manner as for an emission scan, the heads and sources are rotated about the center of the camera.

摘要翻译： 符合传输源用于检测来自辐射源的重合活动。 重合传输源包括专用于收集衰减数据的检测器。 准直辐射源和检测器相对于断层摄影装置定位，使得只有层析成像仪的成像检测器的选定条带被照亮，从而消除与衰减无关的事件。 重合传输源包括其中设置有辐射源的准直仪。 由准直器限定开口以暴露层析成像装置的成像检测器的选定部分。 相对于成像检测器定位在辐射源之后，是专用的衰减检测器。 衰减检测器和准直器被设计为仅照射成像检测器的条带，从而消除衰减测量中不感兴趣的事件。 在双头断层摄影装置中，本发明的一个重合传播源与每一组成像检测器相对设置。 源和相关联的准直仪相对于相应的头部以相当小的角度定位在每个头部的侧面。 源和检测器相对于成像头是固定的。 为了以与发射扫描相同的方式获得视场（FOV）的全面覆盖，头部和源围绕照相机的中心旋转。

公开(公告)号：US6040580A

公开(公告)日：2000-03-21

申请号：US008848

申请日：1998-01-19

申请人： Charles C. Watson ,  William F. Jones

发明人： Charles C. Watson ,  William F. Jones

IPC分类号： G01T1/29 ,  G01T1/166

CPC分类号： G01T1/1615 ,  A61B6/037 ,  G01T1/1611 ,  G01T1/2985

摘要： A method and apparatus for producing radioactive transmission measurements to form multi-dimensional attenuation correction data with a point source of radiation, such as required in positron emission tomography applications. This involves the passing of the point source proximate the face of each of the tomograph units for the formation of a 3-D image, or a selected portion of the tomograph units for a 2-D image. As such, attenuation data, transmission data, detector performance data, etc., can be obtained. This point source of radiation, in one embodiment, is rapidly circulated through a conduit that passes across each detector face under the influence of a transport fluid in, for example, an oscillatory motion to achieve a selected radiation field whereby calculation of transmission measurements within a body positioned within the tomograph scanner is achieved. When not being circulated, the radiation source is held within a shield. In another embodiment, the point source is a CT device. In a further embodiment, a single photon source is used in association with an ECAT ART having two oppositely disposed detector banks. One point source is provided for association with each detector bank. Each point source is capable of axial movement with respect to the detector banks, with the entire apparatus including the detector banks and the point sources being rotatable. Collimators are provided for each point source, the collimators and the point source being fixed with respect to each other, thus reducing the effects of dead-time during a transmission scan typically caused by the point source moving behind a collimator.

摘要翻译： 用于产生放射性透射测量以用诸如正电子发射断层摄影应用中所需的点辐射源形成多维衰减校正数据的方法和装置。 这涉及靠近每个断层摄影机单元的面的点源，以形成3-D图像，或者用于2-D图像的断层摄影单元的选定部分。 因此，可以获得衰减数据，传输数据，检测器性能数据等。 在一个实施例中，该点辐射源通过例如在振荡运动中的输送流体的影响下穿过每个检测器面的导管快速循环，以实现所选择的辐射场，从而计算在 实现了位于层析扫描仪内的身体。 当不被循环时，辐射源被保持在屏蔽内。 在另一个实施例中，点源是CT装置。 在另一个实施例中，单个光子源与具有两个相对布置的检测器组的ECAT ART一起使用。 一点源被提供用于与每个检测器组相关联。 每个点源能够相对于检测器组轴向运动，整个设备包括检测器组和点源可旋转。 为每个点源提供准直器，准直器和点源相对于彼此固定，从而减少通常由点源在准直仪后面移动的透射扫描期间死区时间的影响。

公开(公告)号：US08314380B2

公开(公告)日：2012-11-20

申请号：US12558026

申请日：2009-09-11

申请人： John E. Breeding ,  William F. Jones ,  Wing K. Luk ,  Andrew P. Moor ,  Johnny H. Reed ,  David Townsend

发明人： John E. Breeding ,  William F. Jones ,  Wing K. Luk ,  Andrew P. Moor ,  Johnny H. Reed ,  David Townsend

IPC分类号： H01J49/00 ,  G01T1/161

CPC分类号： G06T11/005

摘要： A patient bed drive mechanism, under control of a processor, is capable of continuously moving a patient bed through the a TOF-PET detector array having a stationary field of view (FOV) for a distance in excess of the physical extent of an axis of the array FOV. A direct memory access (DMA) rebinner card is coupled to the detector array to receive therefrom a stream of TOF-PET coincidence event data during the extent of movement of the bed. Image projection data are generated in real time from the acquired stream of TOF-PET coincidence event data via the DMA card.

摘要翻译： 在处理器的控制下，患者床驱动机构能够通过具有静止视野（FOV）的TOF-PET检测器阵列连续地移动患者床，距离超过轴的物理范围 阵列FOV。 直接存储器访问（DMA）重组卡耦合到检测器阵列以在床的移动范围内从其接收TOF-PET重合事件数据流。 图像投影数据通过DMA卡从所获取的TOF-PET符合事件数据流中实时生成。

公开(公告)号：US20100067765A1

公开(公告)日：2010-03-18

申请号：US12559721

申请日：2009-09-15

申请人： Florian Buther ,  Klaus Schafers ,  William F. Jones ,  Bernard Bendriem ,  Hartwig Newiger

发明人： Florian Buther ,  Klaus Schafers ,  William F. Jones ,  Bernard Bendriem ,  Hartwig Newiger

IPC分类号： G06K9/00

CPC分类号： A61B6/032 ,  A61B6/037 ,  A61B6/5217 ,  A61B6/541

摘要： According to a preferred embodiment, the invention provides a method for extracting internal organ motion from positron emission tomography (PET) coincidence data, the method comprising the following steps: generating a data stream of PET coincidence data using the list mode capability of a PET scanner; dividing the data stream into time frames of a given length; computing a histogram A(i, t) of an axial coincidence distribution for a set of time frames; computing the axial center of mass z(t) for each of the time frames in the set of time frames based on the histogram A(i, t); transforming z(t) into the frequency domain; determining either the frequency contribution caused by respiratory motion, given by fresp, or the frequency contribution caused by heart contractions, given by fcard and Δf, identified in the frequency spectrum |Z(f)|; and carrying out further processing of Z(f) leading to curves zresp(t) and zcard(t) with which a gating sequence is established.

摘要翻译： 根据优选实施例，本发明提供一种从正电子发射断层摄影（PET）符合数据提取内部器官运动的方法，该方法包括以下步骤：使用PET扫描仪的列表模式能力产生PET符合数据的数据流 ; 将数据流划分成给定长度的时间帧; 计算一组时间轴的轴向一致分布的直方图A（i，t）; 基于直方图A（i，t）计算时间帧集合中的每个时间帧的轴向质心z（t）; 将z（t）转换为频域; 确定由fresp给出的呼吸运动引起的频率贡献或由频谱| Z（f）|中确定的fcard和＆Dgr; f给出的由心脏收缩引起的频率贡献; 并进行Z（f）的进一步处理，导致建立门控序列的曲线zresp（t）和zcard（t）。

公开(公告)号：US07676070B2

公开(公告)日：2010-03-09

申请号：US11130631

申请日：2005-05-16

申请人： William F. Jones ,  Johnny Reed

发明人： William F. Jones ,  Johnny Reed

IPC分类号： G06K9/00

CPC分类号： G01T1/2985 ,  A61B6/037 ,  G06T1/20

摘要： A device for improved on-line histogramming of data acquired in a Positron Emission Tomography (PET) scan. The device is a Smart DRAM (SD) PCI card, of which more than one can be used in combination within a PC-based architecture for on-line histogramming. The SD PCI card is applied as either of a Gating Buffer, a histogramming card, and a normalization buffer. The Gating Buffer card alternately stores an arriving PET data packet stream into two dedicated DRAM banks. The two DRAM banks store and retransmit the packet stream in the order of arrival for an entire physiological cycle. The histogramming SD RMW PCI cards provide a very high rate of histogramming. The extendible daisy-chain of SD RMW PCI cards supports large memory banks across potentially hundreds of SD RMW PCI cards. Under a single PC, a multiple PCI Expansion chassis is employed such that a large number of PCI cards are supported.

摘要翻译： 用于改进在正电子发射断层扫描（PET）扫描中获取的数据的在线直方图的装置。 该设备是智能DRAM（SD）PCI卡，其中多个可以在基于PC的架构中组合使用，用于在线直方图。 SD PCI卡被应用为门控缓冲器，直方图卡和归一化缓冲器中的任何一个。 门控缓冲卡交替地将到达的PET数据分组流存储到两个专用DRAM组中。 两个DRAM银行以整个生理周期的顺序存储和重新发送分组流。 直方图SD RMW PCI卡提供非常高的直方图率。 SD RMW PCI卡的可扩展菊花链支持可能存在数百个SD RMW PCI卡的大型存储库。 在单个PC下，使用多个PCI扩展机箱，以支持大量的PCI卡。

公开(公告)号：US06852980B2

公开(公告)日：2005-02-08

申请号：US09982344

申请日：2001-10-18

申请人： William F. Jones ,  Bernard Bendriem ,  Michael E. Casey

发明人： William F. Jones ,  Bernard Bendriem ,  Michael E. Casey

IPC分类号： G01T1/164 ,  G01T1/20 ,  G01T1/29

CPC分类号： G01T1/2985 ,  A61B6/037 ,  A61B6/5205

摘要： A method and apparatus for on-line DOI rebinning for LSO PET/SPECT to improve spatial resolution, for use in a hybrid Positron Emission Tomography (PET)/Single Photon Emission Computed Tomography (SPECT) system running in PET-mode. Data acquisition hardware is used to feed a detector pair coincidence event stream to an on-line rebinner. Gamma centroid location measurements are made by rastering assumed transaxial and radial head positions and the corresponding rebinning maps for optimal back-projected image resolution. Optimal positions are found by collecting a 64-bit list mode file, assuming a crystal position as the centroid for each of the heads, defining a sequence for varying the assumed positions, making the rebinning look-up tables, rebinning the list mode data, histogramming and reconstructing the image, assessing the image resolution, recording the best resolution number and the associated trial position variables, repeating these on the next trial variable set.

摘要翻译： 用于LSO PET / SPECT的在线DOI重组以提高空间分辨率的方法和装置，用于以PET模式运行的混合正电子发射断层扫描（PET）/单光子发射计算机断层扫描（SPECT）系统。 数据采集​​硬件用于将检测器对重合事件流馈送到在线重组器。 伽马重心位置测量是通过对假设的横轴和径向头部位置以及相应的重新组合图进行掠夺来实现最佳背投影图像分辨率。 通过收集64位列表模式文件，假设晶体位置为每个头的质心，定义用于改变假定位置的序列，使重新排列查找表，重新列出列表模式数据，找到最佳位置， 直方图和重建图像，评估图像分辨率，记录最佳分辨率数字和相关联的试验位置变量，在下一个试验变量集中重复这些变量。

公开(公告)号：US5294293A

公开(公告)日：1994-03-15

申请号：US783293

申请日：1991-10-28

申请人： William F. Jones

发明人： William F. Jones

IPC分类号： B23K26/00 ,  B23K26/36 ,  B23K26/40 ,  B24B13/00 ,  G02C7/04 ,  G02C13/00 ,  B44C1/22 ,  B29C37/00

CPC分类号： B29D11/00461 ,  B23K26/402 ,  B23K2203/42

摘要： A method for inducing cylinder power into an optical surface which comprises the steps of providing a corneal surface to an apparatus capable of indexing the position of said target to the beam path of a laser capable of photoablating the material of said target, passing said corneal surface through the domain of said laser along at least one axis and controlling the product of the intensity of said laser with time in order to control the amount of ablation of said corneal surface along at least one axis of said corneal surface.

摘要翻译： 一种用于将气缸动力引入光学表面的方法，其包括以下步骤：向能够将所述靶的位置分度到能够照射所述靶的材料的激光束的光束路径的设备提供角膜表面，使所述角膜表面 沿着至少一个轴线通过所述激光器的区域并且控制所述激光器的强度随时间的乘积，以便沿所述角膜表面的至少一个轴线控制所述角膜表面的消融量。

公开(公告)号：US4258809A

公开(公告)日：1981-03-31

申请号：US493218

申请日：1974-07-31

申请人： William F. Jones

发明人： William F. Jones

IPC分类号： G01G19/04 ,  G01G9/00 ,  G01G19/40 ,  G01G21/22

CPC分类号： G01G19/047

摘要： An apparatus and method for weighing railroad cars coupled together and in motion is disclosed which eliminates the necessity for special scales and, in particular, can be retrofitted and used in conjunction with most existing weigh bridges regardless of the length of the weight bridge, without any modification of the physical construction thereof, and with most existing weigh mechanisms.Generally, the apparatus provides two types of weighing, summation of axle weights and full draft. In addition, combinations of each are possible. During weighing by the summation of axle weights, as each axle enters the weigh bridge, a weight measurement is made and stored in memory. Cars with up to a maximum of nine axles (this is limited by the requirement rather than the electronics) are weighed by adding the axle weights, when the last car axle has entered the weigh bridge. A printer provides a hard copy record of car weights. Full draft weights can be provided, on weigh bridges longer than cars, to provide a more accurate individual car weight. Each axle on the weigh bridge has its equivalent weight stored in memory and during a full draft weight cycle, all axles other than those of the car in full draft are subtracted from the current weight. The final weight is passed to the printer to provide a hard copy record. The axle sum or full draft weight cycles are automatically carried out by signals generated from the track switch logic. The computing unit accepts trains containing cars which may be weighed on axle sum or full draft, depending on the car axle spacing and the weigh bridge length.

摘要翻译： 公开了一种用于称重联接在一起并在运动中的铁路车辆的装置和方法，其消除了特殊秤的必要性，并且特别是可以与大多数现有的称重桥结合使用，而不考虑重量桥的长度，而没有任何 修改其物理结构，以及大多数现有的称重机制。 通常，该装置提供两种类型的称重，轴重加总和全吃水。 另外，每种组合都是可能的。 在通过轴重加权称重期间，当每个轴进入称重桥时，进行重量测量并存储在存储器中。 当最后一个车轴进入称重桥时，通过加上车轴重量，称重最多可达九个车轴的车辆（由要求限制，而不是电子部件）。 打印机提供汽车重量的硬拷贝记录。 在比桥重的桥梁上可以提供全配重，以提供更精确的单车重量。 称重桥上的每个轴的等效重量存储在记忆体中，并且在整个吃水重量循环期间，除了当前重量之外的所有车辆以外的所有车轴都从全吃水中减去。 最后的重量传递给打印机以提供硬拷贝记录。 通过从轨道开关逻辑产生的信号自动执行车轮总和或全牵伸重量循环。 计算单元接收列车，该列车可以根据车轴间距和称重桥长度，根据车桥总数或全速度进行称重。

公开(公告)号：US20120009409A1

公开(公告)日：2012-01-12

申请号：US12832111

申请日：2010-07-08

申请人： William F. Jones ,  Zhaohui Han ,  Randall S. Garrett

发明人： William F. Jones ,  Zhaohui Han ,  Randall S. Garrett

IPC分类号： B32B17/06 ,  B05D5/12 ,  B05D1/36

CPC分类号： C23C24/04 ,  Y10T428/249921

摘要： A method is provided for applying a layer (112) of material to a surface of a non-metallic substrate (116) to enhance a performance characteristic. The method includes applying glass backing (114) to the non-metallic substrate (116) and cold spraying mica or boron nitride (BN) particles (128) onto a surface of the glass backing (114). A conductive tape is also provided, which is formed with the method. The conductive tape includes a first layer of an insulation material (114′), where the first layer is formed from a backing including a fiber-based or polymer backing with resilient and flexible properties for storage in a rolled form and a layer of mica particles or boron nitride particles. The conductive tape further includes a second layer (142′) positioned over the layer of particles, and formed from an electrical conductor material.

摘要翻译： 提供了一种将材料层（112）施加到非金属基底（116）的表面以提高性能特性的方法。 该方法包括将玻璃背衬（114）施加到非金属基底（116）上，并将云母或氮化硼（BN）颗粒（128）冷喷涂到玻璃背衬（114）的表面上。 还提供了用该方法形成的导电带。 导电带包括绝缘材料（114'）的第一层，其中第一层由背衬形成，所述背衬包括具有弹性和柔性性能的纤维基或聚合物背衬，用于以卷状存储并且云母颗粒层 或氮化硼颗粒。 导电带还包括位于颗粒层之上并由电导体材料形成的第二层（142'）。

公开(公告)号：US20120009336A1

公开(公告)日：2012-01-12

申请号：US12832106

申请日：2010-07-08

申请人： William F. Jones ,  Zhaohui Han ,  Randall S. Garrett

发明人： William F. Jones ,  Zhaohui Han ,  Randall S. Garrett

IPC分类号： B05D5/12

CPC分类号： C23C24/04 ,  H01F5/06

摘要： A method is provided for applying a layer (12) of electrical insulation material to a surface (14) of a conductor (16). One embodiment of the method involves preparing the surface (14) of the conductor (16), followed by cold spraying a plurality of mica particles (28) onto the surface (14) of the conductor (16). Another embodiment of the method involves preparing the surface (14) of the conductor (16), followed by cold spraying a plurality of boron nitride (BN) particles onto the surface (14) of the conductor (16).

摘要翻译： 提供了一种将电绝缘材料层（12）施加到导体（16）的表面（14）的方法。 该方法的一个实施例包括制备导体（16）的表面（14），然后将多个云母颗粒（28）冷喷涂到导体（16）的表面（14）上。 该方法的另一实施例包括制备导体（16）的表面（14），然后将多个氮化硼（BN）颗粒冷喷涂到导体（16）的表面（14）上。