公开(公告)号：US07579599B2

公开(公告)日：2009-08-25

申请号：US11941562

申请日：2007-11-16

申请人： Nan Zhang ,  Volker Matschl ,  Niraj K. Doshi ,  Matthias J. Schmand

发明人： Nan Zhang ,  Volker Matschl ,  Niraj K. Doshi ,  Matthias J. Schmand

IPC分类号： G01T1/164

CPC分类号： A61B6/037 ,  A61B6/56

摘要： A medical device with a high voltage connection line for carrying a high DC supply voltage has a control unit generating said high DC supply voltage which is fed through a first AC block unit to said high voltage connection line and generating a digital control signal fed through a first AC coupling unit to said high voltage connection line, and a remotely located unit a second AC block unit coupled to said high voltage connection line for receiving said high DC supply voltage and a second AC coupling unit coupled to said high voltage connection line for receiving said digital control signal.

摘要翻译： 具有用于承载高直流电源电压的高压连接线的医疗装置具有产生所述高直流电源电压的控制单元，所述高直流电源电压通过第一AC块单元馈送到所述高压连接线，并产生通过 第一AC耦合单元连接到所述高压连接线，以及远程定位单元，耦合到所述高压连接线的第二AC块单元，用于接收所述高DC电源电压;以及第二AC耦合单元，耦合到所述高压连接线，用于接收 所述数字控制信号。

公开(公告)号：US20090072151A1

公开(公告)日：2009-03-19

申请号：US11941562

申请日：2007-11-16

申请人： Nan Zhang ,  Volker Matschl ,  Niraj K. Doshi ,  Matthias J. Schmand

发明人： Nan Zhang ,  Volker Matschl ,  Niraj K. Doshi ,  Matthias J. Schmand

IPC分类号： G01T1/164 ,  H04B3/54

CPC分类号： A61B6/037 ,  A61B6/56

摘要： A medical device with a high voltage connection line for carrying a high DC supply voltage has a control unit generating said high DC supply voltage which is fed through a first AC block unit to said high voltage connection line and generating a digital control signal fed through a first AC coupling unit to said high voltage connection line, and a remotely located unit a second AC block unit coupled to said high voltage connection line for receiving said high DC supply voltage and a second AC coupling unit coupled to said high voltage connection line for receiving said digital control signal.

摘要翻译： 具有用于承载高直流电源电压的高压连接线的医疗装置具有产生所述高直流电源电压的控制单元，所述高直流电源电压通过第一AC块单元馈送到所述高压连接线，并产生通过 第一AC耦合单元连接到所述高压连接线，以及远程定位单元，耦合到所述高压连接线的第二AC块单元，用于接收所述高DC电源电压;以及第二AC耦合单元，耦合到所述高压连接线，用于接收 所述数字控制信号。

公开(公告)号：US07495222B2

公开(公告)日：2009-02-24

申请号：US11751372

申请日：2007-05-21

申请人： Nan Zhang ,  Matthias J. Schmand ,  Niraj K. Doshi

发明人： Nan Zhang ,  Matthias J. Schmand ,  Niraj K. Doshi

IPC分类号： G01T1/20

CPC分类号： G01T1/1642 ,  G01T1/1647

摘要： A system for multiplexing photodetector signals from a scintillation detector. The system includes a detector module having a number of scintillator blocks, each scintillator block having a number of photosensors, and a number of multiplexing circuits. Each multiplexing circuit includes a number of inputs, a signal polarity inverter and at least one differential output attached to the signal polarity inverter. The multiplexing system inverts the polarity of preselected signals from the photosensors and selectively combines signals of different polarities to calculate event positioning and total energy.

摘要翻译： 一种用于复用来自闪烁检测器的光检测器信号的系统。 该系统包括具有多个闪烁体块的检测器模块，每个闪烁体块具有多个光电传感器，以及多个复用电路。 每个多路复用电路包括多个输入端，信号极性反相器和附加到信号极性反相器的至少一个差分输出。 复用系统将来自光电传感器的预选信号的极性反转，并且选择性地组合不同极性的信号以计算事件定位和总能量。

公开(公告)号：US09086492B2

公开(公告)日：2015-07-21

申请号：US11753067

申请日：2007-05-24

申请人： Nan Zhang ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Michael D. Loope

发明人： Nan Zhang ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Michael D. Loope

IPC分类号： G01T1/00 ,  G01T1/164

CPC分类号： G01T1/1642 ,  G01T1/208

摘要： A scintillation detector including one or more photomultiplier tubes, a scintillation block optically attached to the photomultiplier tubes, and a DC-coupled bleeder circuit combining outputs of dynodes of the photomultipliers to provide a DC-coupled dynode output together with a DC-coupled anode output of the photomultiplier tubes. The DC-coupled bleeder circuit includes a RF transformer. A positive high voltage supply also can be used together with a DC-coupled bleeder circuit for the anode outputs.

摘要翻译： 闪烁检测器，包括一个或多个光电倍增管，与光电倍增管光学连接的闪烁块，以及组合光电倍增管的倍增电极输出的DC耦合泄放电路，以提供DC耦合的倍增电极输出以及直流耦合的阳极输出 的光电倍增管。 直流耦合放电电路包括RF变压器。 阳极高压电源也可以与阳极输出的直流耦合泄放电路一起使用。

公开(公告)号：US20080290282A1

公开(公告)日：2008-11-27

申请号：US11753067

申请日：2007-05-24

申请人： Nan Zhang ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Michael D. Loope

发明人： Nan Zhang ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Michael D. Loope

IPC分类号： G01T1/20

CPC分类号： G01T1/1642 ,  G01T1/208

摘要： A scintillation detector including one or more photomultiplier tubes, a scintillation block optically attached to the photomultiplier tubes, and a DC-coupled bleeder circuit combining outputs of dynodes of the photomultipliers to provide a DC-coupled dynode output together with a DC-coupled anode output of the photomultiplier tubes. The DC-coupled bleeder circuit includes a RF transformer. A positive high voltage supply also can be used together with a DC-coupled bleeder circuit for the anode outputs.

摘要翻译： 闪烁检测器，包括一个或多个光电倍增管，与光电倍增管光学连接的闪烁块，以及组合光电倍增管的倍增电极输出的DC耦合泄放电路，以提供DC耦合的倍增电极输出以及直流耦合的阳极输出 的光电倍增管。 直流耦合放电电路包括RF变压器。 阳极高压电源也可以与阳极输出的直流耦合泄放电路一起使用。

公开(公告)号：US09006664B2

公开(公告)日：2015-04-14

申请号：US13115220

申请日：2011-05-25

申请人： Nan Zhang ,  Niraj K. Doshi ,  Matthias J. Schmand

发明人： Nan Zhang ,  Niraj K. Doshi ,  Matthias J. Schmand

IPC分类号： G01T1/20

CPC分类号： G01T1/2018

摘要： Signals generated by radiation sensors can be encoded to reduce the number of cables needed to transport information from a nuclear imaging apparatus to a processor for reconstruction. For example, signals from 16 radiation sensors can be encoded into three signals: T (top), L (left), and E (energy). This method of encoding signals can be capable of substantially reducing the number of signals, thereby reducing costs. In addition, reducing the number of signals could improve system timing performance by eliminating cable time-skew and facilitate the filter design by downgrading the circuit accuracy requirements such as group-delay error and filter signal skews.

摘要翻译： 可以编码由辐射传感器产生的信号以减少将信息从核成像设备传输到处理器以进行重建所需的电缆数量。 例如，来自16个辐射传感器的信号可以被编码成三个信号：T（上），L（左）和E（能量）。 这种编码信号的方法能够显着减少信号的数量，从而降低成本。 此外，减少信号数量可以通过消除电缆时间偏移来提高系统定时性能，并通过降低电路精度要求（如组延迟误差和滤波器信号偏移）来促进滤波器设计。

公开(公告)号：US20120212355A1

公开(公告)日：2012-08-23

申请号：US13115220

申请日：2011-05-25

申请人： Nan Zhang ,  Niraj K. Doshi ,  Matthias J. Schmand

发明人： Nan Zhang ,  Niraj K. Doshi ,  Matthias J. Schmand

IPC分类号： H03M7/00 ,  G01T1/20 ,  G01T1/00

CPC分类号： G01T1/2018

摘要： Signals generated by radiation sensors can be encoded to reduce the number of cables needed to transport information from a nuclear imaging apparatus to a processor for reconstruction. For example, signals from 16 radiation sensors can be encoded into three signals: T (top), L (left), and E (energy). This method of encoding signals can be capable of substantially reducing the number of signals, thereby reducing costs. In addition, reducing the number of signals could improve system timing performance by eliminating cable time-skew and facilitate the filter design by downgrading the circuit accuracy requirements such as group-delay error and filter signal skews.

摘要翻译： 可以编码由辐射传感器产生的信号以减少将信息从核成像设备传输到处理器以进行重建所需的电缆数量。 例如，来自16个辐射传感器的信号可以被编码成三个信号：T（上），L（左）和E（能量）。 这种编码信号的方法能够显着减少信号的数量，从而降低成本。 此外，减少信号数量可以通过消除电缆时间偏移来提高系统定时性能，并通过降低电路精度要求（如组延迟误差和滤波器信号偏移）来促进滤波器设计。

公开(公告)号：US07301153B2

公开(公告)日：2007-11-27

申请号：US11387377

申请日：2006-03-23

申请人： Lars A. Eriksson ,  Matthias J. Schmand ,  Michael E. Casey ,  Niraj K. Doshi ,  Mehmet Aykac ,  Ronald Nutt

发明人： Lars A. Eriksson ,  Matthias J. Schmand ,  Michael E. Casey ,  Niraj K. Doshi ,  Mehmet Aykac ,  Ronald Nutt

IPC分类号： G01T1/20

CPC分类号： G01T1/1642 ,  A61B6/037 ,  G01T1/2008 ,  G01T1/2985

摘要： Apparatus and method for providing nuclear medical imaging, in particular positron emission tomography, wherein a panel detector including scintillation blocks with a light guide is attached thereto. The scintillation block is arranged to cover a plurality of photosensors in an N by N configuration where there are outer photosensors which share light information from adjacent scintillation blocks and at least one center photosensor which does not share light information from adjacent scintillation blocks.

公开(公告)号：US07164136B2

公开(公告)日：2007-01-16

申请号：US10680015

申请日：2003-10-07

申请人： Mehmet Aykac ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Mark S. Andreaco ,  Lars A. Eriksson ,  Charles W. Williams ,  Ronald Nutt

发明人： Mehmet Aykac ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Mark S. Andreaco ,  Lars A. Eriksson ,  Charles W. Williams ,  Ronald Nutt

IPC分类号： G01T3/06

CPC分类号： G01T1/1644 ,  A61B6/037 ,  G01T1/2928

摘要： A detector for use in imaging applications includes at least one detector array, an array of photodetectors, and a continuous light guide disposed between the detectors and the photodetectors. The light guide is continuous over the entire area of the photodetectors and detectors. The thickness of the light guide is optimized based on the shape of the photodetector array. Each detector array includes a plurality of scintillator elements disposed in an M×N array, where “M” and “N” are independently selectable and are each at least one. A mechanism for maintaining the relative positions of the individual scintillator elements with respect to each other is provided. The retainer is further provided to enhance the separation between the individual detector arrays to define distinct boundaries between the position profiles of the scintillator arrays.

摘要翻译： 用于成像应用的检测器包括至少一个检测器阵列，光电检测器阵列，以及设置在检测器和光电探测器之间的连续光导。 导光体在光电检测器和检测器的整个区域上是连续的。 基于光电检测器阵列的形状优化光导的厚度。 每个检测器阵列包括设置在MxN阵列中的多个闪烁体元件，其中“M”和“N”可独立选择并且各自至少一个。 提供了用于保持各个闪烁体元件相对于彼此的相对位置的机构。 进一步提供保持器以增强各个检测器阵列之间的间隔，以限定闪烁体阵列的位置分布之间的不同边界。

公开(公告)号：US08470214B2

公开(公告)日：2013-06-25

申请号：US10856225

申请日：2004-05-28

申请人： James L. Corbeil ,  Troy Marlar ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Mark S. Andreaco

发明人： James L. Corbeil ,  Troy Marlar ,  Matthias J. Schmand ,  Niraj K. Doshi ,  Mark S. Andreaco

IPC分类号： B29D11/00

CPC分类号： G01T1/20 ,  B23K2103/50 ,  G01T1/2002

摘要： A method for fabricating a detector or light guide using laser technology. The method yields a detector component such as a scintillator, light guide or optical sensor which provides for the internal manipulation of light waves via the strategic formation of micro-voids to enhance control and collection of scintillation light, allowing for accurate decoding of the impinging radiation. The method uses laser technology to create micro-voids within a target media to optically segment the media. The micro-voids are positioned to define optical boundaries of the optically-segmented portions forming virtual resolution elements within the scintillator. Each micro-void is formed at its selected location using a laser source. The laser source generates and focuses a beam of light into the target media sequentially to form the micro-voids. The laser beam ablates the media at the focal point, thereby yielding the micro-void.

摘要翻译： 一种使用激光技术制造检测器或导光体的方法。 该方法产生诸如闪烁体，光导或光学传感器的检测器组件，其通过微空隙的战略形成提供对光波的内部操纵，以增强闪烁光的控制和收集，允许对入射辐射的精确解码 。 该方法使用激光技术在目标介质内产生微孔，以光学分段介质。 微孔被定位以限定在闪烁体内形成虚拟分辨元件的光学分割部分的光学边界。 使用激光源在其选定位置形成每个微孔。 激光源产生并将光束聚焦到目标介质中以形成微空隙。 激光束在焦点处消融介质，从而产生微孔。