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121 条记录 (耗时 0.032 秒)

    System and method for X-ray imaging
    113.
    发明申请
    System and method for X-ray imaging 有权
    X射线成像系统和方法

    公开(公告)号：US20060045236A1

    公开(公告)日：2006-03-02

    申请号：US10924615

    申请日：2004-08-24

    申请人： David Hoffman

    发明人： David Hoffman

    IPC分类号： H05G1/60

    CPC分类号： G01T1/2018 ,  G01T1/242 ,  G01T1/249 ,  G01T1/36

    摘要： Systems and methods for X-ray imaging are provided. The X-ray imaging system includes an X-ray source for generating X-rays. The X-ray imaging system further includes an X-ray detector configured to provide X-ray intensity variation information relating to the X-rays and corresponding to each of a plurality of detector cells of the X-ray detector.

    摘要翻译： 提供了X射线成像的系统和方法。 X射线成像系统包括用于产生X射线的X射线源。 X射线成像系统还包括：X射线检测器，被配置为提供与X射线相关的X射线强度变化信息，并对应于X射线检测器的多个检测器单元。

    METHOD AND APPARATUS FOR PRESENTING MULTIPLE PRE-SUBJECT FILTERING PROFILES DURING CT DATA ACQUISITION
    114.
    发明申请
    METHOD AND APPARATUS FOR PRESENTING MULTIPLE PRE-SUBJECT FILTERING PROFILES DURING CT DATA ACQUISITION 有权
    用于在CT数据采集期间呈现多个预先筛选轮廓的方法和装置

    公开(公告)号：US20050243971A1

    公开(公告)日：2005-11-03

    申请号：US11160830

    申请日：2005-07-12

    申请人： David Hoffman

    发明人： David Hoffman

    IPC分类号： A61B6/03 ,  G21K1/02 ,  G21K1/12 ,  H05G1/60

    CPC分类号： A61B6/032 ,  A61B6/4035 ,  G21K1/02

    摘要： The present invention is directed to a method and apparatus for CT data acquisition using a rotatable pre-subject filter having more than one filtering profile to control radiation exposure to a subject. The filter is caused to rotate by a motor and bearing assembly and has one profile used to filter radiation when the radiation source is positioned above a subject and another profile that is used to filter radiation when the radiation source is positioned at a side of the subject.

    摘要翻译： 本发明涉及一种用于使用具有多于一个滤波轮廓的可旋转的预受检过滤器来控制对受试者的辐射照射的CT数据采集的方法和装置。 通过电动机和轴承组件使过滤器旋转，并且当辐射源位于被摄体上方时具有用于过滤辐射的一个轮廓，并且当辐射源位于被摄体的一侧时用于过滤辐射的另一轮廓 。

    Multidetector CT imaging method and apparatus with reducing radiation scattering
    116.
    发明申请
    Multidetector CT imaging method and apparatus with reducing radiation scattering 有权
    多检测CT成像方法和减少辐射散射的装置

    公开(公告)号：US20050147201A1

    公开(公告)日：2005-07-07

    申请号：US10748612

    申请日：2003-12-30

    申请人： David Hoffman

    发明人： David Hoffman

    IPC分类号： A61B6/03 ,  G21K1/12 ,  A61B6/00 ,  G01N23/00 ,  H05G1/60

    CPC分类号： A61B6/032 ,  A61B6/027 ,  A61B6/4028 ,  A61B6/4035 ,  A61B6/4085 ,  A61B6/4241 ,  A61B6/482

    摘要： A method for scanning an object to reduce image degradation includes scanning the object in a helical mode using a multi-slice CT imaging system having a plurality of detector arrays arranged along a z-axis direction and a radiation source having a beam focal spot. The method further includes wobbling the focal spot of the radiation source in the z-axis direction during the scanning to selectively preferentially illuminate individual detector arrays through the scanned object for each view. Data is collected from each detector array for each view only when the detector array from which data is being collected is selectively illuminated.

    摘要翻译： 用于扫描对象以减少图像劣化的方法包括使用具有沿z轴方向排列的多个检测器阵列的多层CT成像系统和具有束焦点的辐射源以螺旋模式扫描物体。 该方法还包括在扫描期间在z轴方向摆动辐射源的焦点，以便通过每个视图的扫描对象选择性地优先照射各个检测器阵列。 仅当从其收集数据的检测器阵列选择性地照亮时，才从每个检测器阵列收集数据。

    CT detector array having non-pixelated scintillator array
    117.
    发明申请
    CT detector array having non-pixelated scintillator array 有权
    具有非象素化闪烁体阵列的CT检测器阵列

    公开(公告)号：US20050133725A1

    公开(公告)日：2005-06-23

    申请号：US11029612

    申请日：2005-01-04

    申请人： Haochuan Jiang ,  David Hoffman ,  James Vartuli

    发明人： Haochuan Jiang ,  David Hoffman ,  James Vartuli

    IPC分类号： G01T1/20 ,  A61B6/03 ,  C09K11/00 ,  C09K11/08 ,  C09K11/80 ,  G01N23/04 ,  G01T1/00 ,  G01T1/164 ,  G01T1/202 ,  G01T1/29 ,  G01T5/08 ,  G21K1/02 ,  H01L31/02 ,  H01L31/09 ,  G21K1/12 ,  A61B6/00 ,  G01J1/00 ,  G01N23/00 ,  G01T1/24 ,  H05G1/60

    CPC分类号： G01T1/2985 ,  A61B6/032 ,  A61B6/4233 ,  G01N23/046 ,  G01N2223/419 ,  G01T1/1644 ,  G01T1/201 ,  G21K1/02

    摘要： The present invention is a directed to a non-pixelated scintillator array for a CT detector as well as an apparatus and method of manufacturing same. The scintillator array is comprised of a number of ceramic fibers or single crystal fibers that are aligned in parallel with respect to one another. As a result, the pack has very high dose efficiency. Furthermore, each fiber is designed to direct light out to a photodiode with very low scattering loss. The fiber size (cross-sectional diameter) may be controlled such that smaller fibers may be fabricated for higher resolution applications. Moreover, because the fiber size can be controlled to be consistent throughout the scintillator array and the fibers are aligned in parallel with one another, the scintillator array, as a whole, also is uniform. Therefore, precise alignment with the photodiode array or the collimator assembly is not necessary.

    摘要翻译： 本发明涉及一种用于CT检测器的非像素化闪烁体阵列以及其制造方法。 闪烁体阵列包括相对于彼此平行对准的多个陶瓷纤维或单晶纤维。 因此，该包装具有非常高的剂量效率。 此外，每个光纤被设计成将光引导到具有非常低的散射损耗的光电二极管。 可以控制纤维尺寸（横截面直径），使得可以制造更小的纤维用于更高分辨率的应用。 此外，由于可以将整个闪烁体阵列的纤维尺寸控制为一致，并且纤维彼此平行排列，所以闪烁体阵列整体上也是均匀的。 因此，不需要与光电二极管阵列或准直器组件的精确对准。

    Compact structural CT detector module
    118.
    发明申请
    Compact structural CT detector module 失效
    紧凑型结构CT检测器模块

    公开(公告)号：US20050061985A1

    公开(公告)日：2005-03-24

    申请号：US10668581

    申请日：2003-09-23

    申请人： David Hoffman

    发明人： David Hoffman

    IPC分类号： G01T1/166 ,  G01T1/24 ,  G01T1/29

    CPC分类号： G01T1/2928 ,  G01T1/166

    摘要： This invention relates generally to a system for differentiating material characteristics using a Computed Tomography imaging system. More particularly, it relates to a detector module for use with a hybrid-scintillator/photo sensor and direct conversion imaging system comprised of an x-ray transparent top layer; an electrode on said top; a block of direct conversion material, the electrode providing a common bias to the direct conversion material; a substrate material electrically connected with the direct conversion material; a signal processing chip electrically connected with the substrate; and a connector element electrically connected to the substrate.

    摘要翻译： 本发明一般涉及使用计算机断层扫描成像系统来区分材料特性的系统。 更具体地说，本发明涉及一种与混合闪烁体/光电传感器一起使用的检测器模块和由x射线透明顶层组成的直接转换成像系统。 所述顶部上的电极; 直接转换材料块，电极为直接转换材料提供共同的偏置; 与所述直接转换材料电连接的基板材料; 与所述基板电连接的信号处理芯片; 以及电连接到所述基板的连接器元件。

    High throughput plasma treatment system
    119.
    发明申请
    High throughput plasma treatment system 有权
    高通量等离子体处理系统

    公开(公告)号：US20050039853A1

    公开(公告)日：2005-02-24

    申请号：US10952659

    申请日：2004-09-29

    申请人： Louis Rigali ,  David Hoffman ,  Keda Wang ,  William Smith

    发明人： Louis Rigali ,  David Hoffman ,  Keda Wang ,  William Smith

    IPC分类号： H01L21/677 ,  C23F1/00

    CPC分类号： H01J37/32082 ,  H01L21/67069 ,  H01L21/67751 ,  H01L21/67772 ,  H01L21/67778 ,  H01L21/67781 ,  H01L2224/85013 ,  H01L2924/01078 ,  Y10S414/139

    摘要： A method for the plasma treatment of parts. The method includes sending loading signals from an electronic control to a transfer mechanism and loading the parts from a position outside of the treatment chamber to a plurality of treatment positions within the treatment chamber based on the loading signals. A plasma is generated within the treatment chamber to treat the parts. After treatment, unloading signals are sent from the electronic control to the transfer mechanism and the parts are unloaded from the treatment chamber based on the unloading signals. Each of the parts may be guided to a corresponding one of the treatment positions during loading.

    摘要翻译： 一种等离子体处理零件的方法。 该方法包括将加载信号从电子控制器发送到传送机构，并且基于加载信号将部件从处理室外部的位置加载到处理室内的多个处理位置。 在处理室内产生等离子体以处理部件。 处理后，卸载信号从电子控制器传送到传送机构，部件根据卸载信号从处理室卸载。 在加载期间，每个部件可以被引导到相应的一个处理位置。

    6,11-dihydrodibenz[b,e]oxepin-acetic acids and derivatives
    120.
    发明授权
    6,11-dihydrodibenz[b,e]oxepin-acetic acids and derivatives 失效
    6,11-二氢二苯并[b，e]氧杂七环素 - 乙酸及其衍生物

    公开(公告)号：US4816591A

    公开(公告)日：1989-03-28

    申请号：US91159

    申请日：1979-11-05

    申请人： Grover C. Helsley ,  Arthur R. McFadden ,  David Hoffman

    发明人： Grover C. Helsley ,  Arthur R. McFadden ,  David Hoffman

    IPC分类号： C07C59/70 ,  C07C65/24 ,  C07D313/12

    CPC分类号： C07C59/70 ,  C07C65/24 ,  C07D313/12

    摘要： 6,11-Dihydrodibenz[b,e]oxepin-acetic acids and derivatives having the general formula ##STR1## are prepared by multi-steps sequences. X is C.dbd.O, CHCl, CHBr, CH.sub.2 or CHOR.sup.4 ; Y is alkyl or alkoxy of 1 to 4 carbon atoms, halogen or trifluoromethyl; n is 0, 1, 2 or 3; Z is COOR.sup.5, CH.sub.2 OR.sup.5, CONR.sub.2.sup.5 or CONHOR.sup.5 ; and R.sup.1 -R.sup.5 are hydrogen or alkyl of 1 to 4 carbon atoms.These compounds and the physiologically tolerable salts thereof are useful as antiinflammatory and analgesic agents.

    摘要翻译： 6,11-二氢二苯并[b，e]氧杂七环素 - 乙酸和具有通式的衍生物通过多步序列制备。 X是C = O，CHCl，CHBr，CH 2或CHOR 4; Y是1至4个碳原子的烷基或烷氧基，卤素或三氟甲基; n为0,1,2或3; Z是COOR5，CH2OR5，CONR25或CONHOR5; 并且R 1 -R 5是氢或1至4个碳原子的烷基。 这些化合物及其生理上可耐受的盐可用作抗炎和止痛剂。