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公开(公告)号：US07915591B2
公开(公告)日：2011-03-29
申请号：US12122471
申请日：2008-05-16
IPC分类号： G01T1/36
CPC分类号： G01T1/295
摘要： A detector for identification and localization of radioisotopes, comprising a position sensitive detector configured to observe the location of emitted high energy radiation, wherein the position sensitive detector comprises a surface comprised of a first radiation sensitive material; and an active mask disposed in front of the position sensitive detector positioned such that the emitted high energy radiation is detected by the position sensitive detector after passage through the mask, wherein the mask comprises a second radiation sensitive material.
摘要翻译： 一种用于放射性同位素识别和定位的检测器，包括位置敏感检测器，其被配置为观察所发射的高能量辐射的位置，其中所述位置敏感检测器包括由第一辐射敏感材料组成的表面; 以及设置在所述位置敏感检测器前面的有源掩模，其被定位成使得所述发射的高能量辐射在通过所述掩模之后由所述位置敏感检测器检测，其中所述掩模包括第二辐射敏感材料。
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公开(公告)号：US08129686B2
公开(公告)日：2012-03-06
申请号：US12122447
申请日：2008-05-16
IPC分类号： G01T1/161
CPC分类号： G01T1/295
摘要： A coded aperture includes a position sensitive detector configured to observe the location of emitted high energy radiation, and a mask disposed in front of the position sensitive detector, wherein the mask has a non-linear shape configured to define a perimeter around position sensitive detector, wherein the mask comprises a plurality of attenuating and transparent elements of a predetermined configuration, positioned such that the emitted radiation is detected by the position sensitive detector after passage through the mask.
摘要翻译： 编码孔径包括被配置为观察发射的高能量辐射的位置的位置敏感检测器和设置在位置敏感检测器前面的掩模，其中掩模具有被配置为限定位置敏感检测器周围的周边的非线性形状， 其中所述掩模包括多个预定构型的衰减和透明元件，所述多个衰减和透明元件被定位成使得所述发射的辐射在通过所述掩模之后由所述位置敏感检测器检测。
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公开(公告)号：US20120025092A1
公开(公告)日：2012-02-02
申请号：US12122447
申请日：2008-05-16
IPC分类号： G01T1/16
CPC分类号： G01T1/295
摘要： A coded aperture includes a position sensitive detector configured to observe the location of emitted high energy radiation, and a mask disposed in front of the position sensitive detector, wherein the mask has a non-linear shape configured to define a perimeter around position sensitive detector, wherein the mask comprises a plurality of attenuating and transparent elements of a predetermined configuration, positioned such that the emitted radiation is detected by the position sensitive detector after passage through the mask.
摘要翻译： 编码孔径包括被配置为观察发射的高能量辐射的位置的位置敏感检测器和设置在位置敏感检测器前面的掩模，其中掩模具有被配置为限定位置敏感检测器周围的周边的非线性形状， 其中所述掩模包括多个预定构型的衰减和透明元件，所述多个衰减和透明元件被定位成使得所述发射的辐射在通过所述掩模之后由所述位置敏感检测器检测。
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公开(公告)号：US20090114824A1
公开(公告)日：2009-05-07
申请号：US12122471
申请日：2008-05-16
IPC分类号： G01T1/161
CPC分类号： G01T1/295
摘要： A detector for identification and localization of radioisotopes, comprising a position sensitive detector configured to observe the location of emitted high energy radiation, wherein the position sensitive detector comprises a surface comprised of a first radiation sensitive material; and an active mask disposed in front of the position sensitive detector positioned such that the emitted high energy radiation is detected by the position sensitive detector after passage through the mask, wherein the mask comprises a second radiation sensitive material.
摘要翻译： 一种用于放射性同位素识别和定位的检测器，包括位置敏感检测器，其被配置为观察所发射的高能量辐射的位置，其中所述位置敏感检测器包括由第一辐射敏感材料组成的表面; 以及设置在所述位置敏感检测器前面的有源掩模，其被定位成使得所述发射的高能量辐射在通过所述掩模之后由所述位置敏感检测器检测，其中所述掩模包括第二辐射敏感材料。
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公开(公告)号：US20140064456A1
公开(公告)日：2014-03-06
申请号：US13602080
申请日：2012-08-31
申请人： Yun Zou , Scott Stephen Zelakiewicz , Floribertus P. M. Heukensfeldt Jansen , Jeffrey Wayne Eberhard , Fengfeng Tao , Timothy Powers , Thomas Edmund Sjoberg
发明人： Yun Zou , Scott Stephen Zelakiewicz , Floribertus P. M. Heukensfeldt Jansen , Jeffrey Wayne Eberhard , Fengfeng Tao , Timothy Powers , Thomas Edmund Sjoberg
IPC分类号： H01J35/30
CPC分类号： H01J35/28 , H01J35/025 , H01J35/14
摘要： A motion correction system and method for motion correction for an x-ray tube is presented. One embodiment of the motion correction system includes a sensing unit coupled to an x-ray tube to determine a distance with which an impingement location of an electron beam generated by the x-ray tube deviates from a determined location due to motion of the x-ray tube. The motion correction system further includes a control unit coupled to the sensing unit to generate a control signal corresponding to the distance with which the impingement location of the electron beam deviates. Also, the motion correction system includes a deflection unit coupled to the control unit to steer the electron beam to the determined location based on the generated control signal.
摘要翻译： 提出了用于X射线管的运动校正系统和运动校正方法。 运动校正系统的一个实施例包括耦合到X射线管的感测单元，以确定由x射线管产生的电子束的冲击位置由于X射线管的运动而偏离确定的位置的距离， 射线管。 运动校正系统还包括耦合到感测单元的控制单元，以产生对应于电子束的冲击位置偏离的距离的控制信号。 此外，运动校正系统包括耦合到控制单元的偏转单元，以基于所生成的控制信号将电子束转向确定的位置。
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公开(公告)号：US07214947B2
公开(公告)日：2007-05-08
申请号：US11090675
申请日：2005-03-25
申请人： Clifford Bueno , Forrest Frank Hopkins , Scott Stephen Zelakiewicz , Clarence Lavere Gordon, III
发明人： Clifford Bueno , Forrest Frank Hopkins , Scott Stephen Zelakiewicz , Clarence Lavere Gordon, III
IPC分类号： G01T1/20
CPC分类号： G01T1/2018 , H01L27/14658
摘要： A detector assembly including a radiation conversion layer directly coupled to a pixel array is provided. The radiation conversion layer is adapted to receive radiation passing through an object. The pixel array is adapted for receiving one of a plurality of signals representative of the radiation passing through the object or the corresponding optical signals from an optional intermediate light production layer and further configured for generating a corresponding image of the object.
摘要翻译： 提供了包括直接耦合到像素阵列的辐射转换层的检测器组件。 辐射转换层适于接收通过物体的辐射。 像素阵列适于接收表示穿过物体的辐射的多个信号中的一个或来自可选的中间光产生层的相应的光信号，并进一步被配置为产生对象的相应图像。
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7.发明授权Apparatus and method for image reconstruction for a synthetic aperture gamma ray imager 有权用于合成孔径伽马射线成像仪的图像重建的装置和方法公开(公告)号：US07663105B2
公开(公告)日：2010-02-16
申请号：US12331936
申请日：2008-12-10
申请人： Ralph Thomas Hoctor , Scott Stephen Zelakiewicz , Evren Asma , Jeffrey Gordon , Floribertus P. M. Heukensfeldt Jansen
发明人： Ralph Thomas Hoctor , Scott Stephen Zelakiewicz , Evren Asma , Jeffrey Gordon , Floribertus P. M. Heukensfeldt Jansen
IPC分类号： G01T1/00
CPC分类号： G03B42/02
摘要： An imaging system includes a platform having mounted thereon a coded-aperture imaging device and positioned to receive radiation over a baseline. The imaging system includes a computer configured to acquire a plurality of far-field datasets over the baseline, the plurality of far-field datasets comprising data received via the coded-aperture imaging device. The computer is also configured to form a preliminary image based on the acquired plurality of far-field datasets, and apply an expectation maximization (EM) algorithm to the preliminary image; wherein the EM algorithm includes an ordered subset algorithm.
摘要翻译： 成像系统包括其上安装有编码孔径成像装置并被定位成在基线上接收辐射的平台。 成像系统包括被配置为在基线上获取多个远场数据集的计算机，所述多个远场数据集包括经由编码孔径成像装置接收的数据。 计算机还被配置为基于所获取的多个远场数据集形成初步图像，并将预期最大化（EM）算法应用于初步图像; 其中所述EM算法包括有序子集算法。
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8.发明申请公开(公告)号：US20080191140A1
公开(公告)日：2008-08-14
申请号：US11704827
申请日：2007-02-09
申请人： Daniel Bruno McDevitt , Jeffrey Wayne Eberhard , Bernhard Erich Hermann Claus , Scott Stephen Zelakiewicz , Joseph Bendahan
发明人： Daniel Bruno McDevitt , Jeffrey Wayne Eberhard , Bernhard Erich Hermann Claus , Scott Stephen Zelakiewicz , Joseph Bendahan
CPC分类号： G01T3/08 , G01T1/202 , G01T3/06 , G01V5/0091
摘要： Dual modality detection devices and methods are provided for detecting nuclear material, the devices include a neutron detector including multiple neutron detection modules; and a gamma detector including multiple gamma detection modules, where the multiple neutron detection modules and the multiple gamma detection modules are integrated together in a single unit to detect simultaneously both gamma rays and neutrons.
摘要翻译： 提供了用于检测核材料的双重模态检测装置和方法，该装置包括具有多个中子检测模块的中子检测器; 以及包括多个伽马检测模块的伽马检测器，其中多个中子检测模块和多个伽马检测模块以单个单元集成在一起以同时检测伽马射线和中子。
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公开(公告)号：US07259377B2
公开(公告)日：2007-08-21
申请号：US11300815
申请日：2005-12-15
申请人： Scott Stephen Zelakiewicz , Snezana Bogdanovich , Aaron Judy Couture , Douglas Albagli , William Andrew Hennessy
发明人： Scott Stephen Zelakiewicz , Snezana Bogdanovich , Aaron Judy Couture , Douglas Albagli , William Andrew Hennessy
IPC分类号： G01T1/24
CPC分类号： G01T1/2928 , G01T1/2018
摘要： A photodetector for X-ray applications includes a photodiode at each pixel location that is gated to reduce leakage of charge from the photodiode. A gate layer may be disposed around the entire peripheral edge of the detector, and maintained at a common potential with a contact layer, or at a different potential. A passivation or dielectric layer separates the gate layer from the photodiode. Leakage around the edge of the diode that can result from extended exposure to radiation is reduced by the gate layer.
摘要翻译： 用于X射线应用的光电检测器包括在每个像素位置处的光电二极管，其被门控以减少电荷从光电二极管的泄漏。 栅极层可以围绕检测器的整个周边边缘设置，并且与接触层保持在共同的电位，或者处于不同的电位。 钝化或介电层将栅极层与光电二极管分开。 通过栅极层减少可能由于延长的辐射暴露而导致的二极管边缘周围的泄漏。
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10.发明授权Apparatus and method for image reconstruction for a synthetic aperture gamma ray imager 有权用于合成孔径伽马射线成像仪的图像重建的装置和方法公开(公告)号：US08013310B2
公开(公告)日：2011-09-06
申请号：US12348440
申请日：2009-01-05
IPC分类号： G01T1/00
CPC分类号： G03B42/02
摘要： An imaging system includes a platform having mounted thereon a coded-aperture imaging device and positioned to receive radiation over a baseline, and a computer configured to acquire a plurality of far-field datasets over the baseline, the plurality of far-field datasets comprising data received via the coded-aperture imaging device, form a first image from the plurality of far-field datasets, and form a second image if the first image indicates presence of a source, the second image formed from the plurality of far-field datasets using an estimated source location from the first image and thereby having a higher contrast than the first image.
摘要翻译： 成像系统包括其上安装有编码孔径成像装置并被定位成在基线上接收辐射的平台以及被配置为在基线上获取多个远场数据集的计算机，所述多个远场数据集包括数据 通过编码孔径成像装置接收，形成来自多个远场数据集的第一图像，并且如果第一图像指示源的存在，则形成第二图像，由多个远场数据集形成的第二图像使用 来自第一图像的估计源位置，从而具有比第一图像更高的对比度。
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