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    MICROWAVE IMAGING SYSTEM
    1.
    发明公开
    MICROWAVE IMAGING SYSTEM 审中-公开

    公开(公告)号：US20240255659A1

    公开(公告)日：2024-08-01

    申请号：US18040587

    申请日：2021-08-05

    Applicant: Spectroma Limited

    Inventor： Charlotte Elizabeth Edwards ,  David John Edwards

    IPC: G01T1/29

    CPC classification number: G01T1/2985 ,  G01T1/2964 ,  G01T1/2992

    Abstract: A microwave imaging system and method are disclosed for generating a 3-D map of a body. The system comprises a source of coherent microwave radiation for irradiating the body, at least one microwave detector for detecting at a plurality of locations around the body the amplitude and phase of radiation that has passed through, or has been reflected by, the body, an analyser connected to receive signals from the or each detector and from the source and operative to produce a holographic image indicative at each detection location the phase of the received radiation relative to the phase of radiation received directly from the source at the same location, and a processor for processing the holographic image to calculate in three dimensions the positions of localized physical parameters within the body.

    PET CALIBRATIONS WITH VARYING COINCIDENCE WINDOWS
    3.
    发明申请
    PET CALIBRATIONS WITH VARYING COINCIDENCE WINDOWS 有权
    PET校正与变化的联合窗口

    公开(公告)号：US20130240721A1

    公开(公告)日：2013-09-19

    申请号：US13885282

    申请日：2011-11-15

    Applicant: Thomas Leroy Laurence ,  Jeffrey Allan Kolthammer

    Inventor： Thomas Leroy Laurence ,  Jeffrey Allan Kolthammer

    IPC: G01T1/164

    CPC classification number: G01T1/164 ,  A61B6/037 ,  A61B6/583 ,  G01T1/1648 ,  G01T1/2964 ,  G01T1/2985 ,  G01T7/00

    Abstract: When calibrating a positron emission tomography (PET) scanner, a radioactive calibration phantom is scanned over a period of several half lives to acquire a plurality of frames of scan data. Interlaced timing windows are employed to facilitate acquiring coincidence data for a plurality of coincidence timing windows and energy windows during a single calibration scan. Coincident events are binned according to each of a plurality of selected coincidence windows, and the PET scanner is calibrated for each of the plurality of coincidence timing windows using data acquired from the single calibration scan.

    Abstract translation: 当校正正电子发射断层摄影（PET）扫描仪时，在几个半衰期的时间内扫描放射性校准体模以获得多个扫描数据帧。 采用隔行扫描时序窗口以便在单个校准扫描期间获取多个重合定时窗口和能量窗口的符合数据。 根据多个选择的重合窗口中的每一个，对重合事件进行分箱，并且使用从单个校准扫描获取的数据来校准多个符合定时窗口中的每一个的PET扫描器。

    Calibration method and apparatus for pixilated solid state detector
    4.
    发明授权
    Calibration method and apparatus for pixilated solid state detector 失效
    用于像素化固态检测器的校准方法和装置

    公开(公告)号：US07518102B2

    公开(公告)日：2009-04-14

    申请号：US10595465

    申请日：2004-10-06

    Applicant: Michael J. Petrillo ,  Jingjan Ye

    Inventor： Michael J. Petrillo ,  Jingjan Ye

    IPC: G01D18/00

    CPC classification number: G01T1/169 ,  G01T1/166 ,  G01T1/247 ,  G01T1/249 ,  G01T1/2964 ,  G01T7/005 ,  G12B13/00

    Abstract: A system calibrates a solid state detector (20) for a radiation imaging device (10) in a single acquisition. A calibration phantom (40) emits radiation concurrently at at least first and second characteristic energy levels. A nuclear camera (16) generates associated sets of radiation data spanning both the first and second energy levels from the emitted radiation that is received by solid state detector (20). A means (64) determines associated centers of energy peaks and energy values of the generated data sets. A calibration means (80) calibrates at least one of gain, offset, performance and dead pixel correction based on the determined centers and peaks of the acquired data sets.

    Abstract translation: 系统在单次采集中校准用于辐射成像装置（10）的固态检测器（20）。 校准体模（40）至少在第一和第二特征能量水平同时发射辐射。 核相机（16）从由固态检测器（20）接收的所发射的辐射产生跨越第一和第二能级的相关联的一组辐射数据。 A装置（64）确定生成的数据集的能量峰值和能量值的相关联的中心。 校准装置（80）基于所获取的数据集的确定的中心和峰值来校准增益，偏移，性能和死像素校正中的至少一个。

    RADIATION IMAGING SYSTEM WITH IMAGING DEVICES ARRANGED IN A MOSAIC
    6.
    发明申请
    RADIATION IMAGING SYSTEM WITH IMAGING DEVICES ARRANGED IN A MOSAIC 无效
    具有安装在MOSAIC中的成像装置的放射成像系统

    公开(公告)号：US20020089595A1

    公开(公告)日：2002-07-11

    申请号：US08871714

    申请日：1997-06-09

    Inventor： RISTO OLAVI ORAVA ,  JOUNI ILARI PYYHTIA ,  TOM GUNNAR SCHULMAN ,  MILTIADIS EVANGELOS SARAKINOS ,  KONSTANTINOS EVANGELOS SPARTIOTIS

    IPC: H04N003/14

    CPC classification number: G01T1/2928 ,  G01T1/247 ,  G01T1/2964 ,  H01L27/146 ,  H01L27/14601 ,  H01L27/14676 ,  H01L27/14831 ,  H04N5/32 ,  H04N5/325 ,  H04N5/349 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/376

    Abstract: An imaging device comprises a semiconductor substrate including an array of pixel cells. Each pixel cell comprising an individually addressable pixel circuit for accumulating charge resulting from radiation incident on a pixel detector. The pixel circuit and the pixel detector can either be implemented on a single substrate, or on two substrates bonded together. The charge storage device can be a transistor, for example one of a pair of FET transistors connected as a cascade amplification stage. An imaging plane can be made up of one imaging device or a plurality of imaging devices tiled to form a mosaic. The imaging devices may be configured as a slot for certain applications, the slit or slot being scanned over the imaging plane. Control electronics can include addressing logic for addressing individual pixel circuits for reading accumulated charge from the pixel circuits. Imaging optimization can be achieved by determining maximum and minimum charge values for pixels for display, assigning extreme grey scale or colour values to the maximum and minimum charge values and allocating grey scale or colour values to an individual pixel according to a sliding scale between the extreme values. Scattered radiation can be detected and discarded by comparing the detected pixel value to a threshold value related to a minimum detected charge value expected for directly incident radiation and discarding detected pixel values less than said threshold value.

    Abstract translation: 成像装置包括包括像素单元阵列的半导体衬底。 每个像素单元包括用于累积由入射在像素检测器上的辐射产生的电荷的单独可寻址像素电路。 像素电路和像素检测器可以实现在单个衬底上，或者在两个衬底上结合在一起。 电荷存储装置可以是晶体管，例如作为级联放大级连接的一对FET晶体管中的一个。 成像平面可由一个成像装置或多个成像装置构成，以便形成马赛克。 成像装置可以被配置为用于某些应用的狭缝，狭缝或槽被扫描在成像平面上。 控制电子器件可以包括用于寻址单个像素电路以用于从像素电路读取累积电荷的寻址逻辑。 可以通过确定用于显示的像素的最大和最小电荷值来实现成像优化，将极大灰度或颜色值分配给最大和最小电荷值，并根据极端之间的滑动刻度将灰度或颜色值分配给单个像素 价值观。 通过将检测到的像素值与对于直接入射辐射预期的最小检测电荷值相关的阈值进行比较，并且丢弃小于所述阈值的检测像素值，可以检测和丢弃散射辐射。

    X-ray imaging system
    7.
    发明授权
    X-ray imaging system 失效
    X光成像系统

    公开(公告)号：US06310358B1

    公开(公告)日：2001-10-30

    申请号：US09233320

    申请日：1999-01-20

    Applicant: Albert Zur

    Inventor： Albert Zur

    IPC: G01N2304

    CPC classification number: G01T1/2018 ,  G01T1/246 ,  G01T1/2964

    Abstract: The present disclosure presents an apparatus for radiation detection comprising a generally uniform dielectric layer, a conductive layer interfacing a first surface of the generally uniform dielectric layer; an ionizing radiation detection multi-layer structure including a photoelectric conversion layer interfacing a second surface of the generally uniform dielectric layer; said ionizing radiation detection multi-layer structure, said generally uniform dielectric layer, and said conductive layer being configured with respect to each other and being operative such that an imagewise ionizing radiation pattern impinging on said ionizing radiation detection multi-layer substrate causes a corresponding charge pattern representing said imagewise ionizing radiation to be generated at the interface between the generally uniform dielectric layer and the photoelectric conversion layer and causes a readable imagewise replica of said charge pattern to be formed in said conductive layer.

    Abstract translation: 本公开提供了一种用于辐射检测的装置，其包括大致均匀的介电层，与大致均匀的介电层的第一表面接合的导电层; 电离辐射检测多层结构，其包括与所述大致均匀介电层的第二表面接合的光电转换层; 所述电离辐射检测多层结构，所述大致均匀的电介质层，并且所述导电层相对于彼此配置并且可操作使得入射在所述电离辐射检测多层衬底上的成像电离辐射图形成相应的电荷 图案表示将在大致均匀的电介质层和光电转换层之间的界面处产生的所述成像电离辐射，并且使所述电荷图案的可读图像复制品形成在所述导电层中。

    SYSTEM AND METHOD FOR COMPUTER TOMOGRAPHY IMAGING
    8.
    发明申请
    SYSTEM AND METHOD FOR COMPUTER TOMOGRAPHY IMAGING 无效
    用于计算机图像成像的系统和方法

    公开(公告)号：US20010002844A1

    公开(公告)日：2001-06-07

    申请号：US08871512

    申请日：1997-06-09

    Inventor： RISTO OLAVI ORAVA ,  JOUNI ILARI PYYHTIA ,  TOM GUNNAR SCHULMAN ,  MILTIADIS EVANGELOS SARAKINOS ,  KONSTANTINOS SPARTIOTIS

    IPC: H04N003/14 ,  H04N005/225

    CPC classification number: G01T1/2928 ,  G01T1/247 ,  G01T1/2964 ,  H01L27/146 ,  H01L27/14601 ,  H01L27/14676 ,  H01L27/14831 ,  H04N5/32 ,  H04N5/325 ,  H04N5/349 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/376

    Abstract: An imaging device comprises a semiconductor substrate including an array of pixel cells. Each pixel cell comprising an individually addressable pixel circuit for accumulating charge resulting from radiation incident on a pixel detector. The pixel circuit and the pixel detector can either be implemented on a single substrate, or on two substrates bonded together. The charge storage device can be a transistor, for example one of a pair of FET transistors connected as a cascade amplification stage. An imaging plane can be made up of one imaging device or a plurality of imaging devices tiled to form a mosaic. The imaging devices may be configured as a slot for certain applications, the slit or slot being scanned over the imaging plane. Control electronics can include addressing logic for addressing individual pixel circuits for reading accumulated charge from the pixel circuits. Imaging optimization can be achieved by determining maximum and minimum charge values for pixels for display, assigning extreme grey scale or colour values to the maximum and minimum charge values and allocating grey scale or colour values to an individual pixel according to a sliding scale between the extreme values. Scattered radiation can be detected and discarded by comparing the detected pixel value to a threshold value related to a minimum detected charge value expected for directly incident radiation and discarding detected pixel values less than said threshold value.

    Abstract translation: 成像装置包括包括像素单元阵列的半导体衬底。 每个像素单元包括用于累积由入射在像素检测器上的辐射产生的电荷的单独可寻址像素电路。 像素电路和像素检测器可以实现在单个衬底上，或者在两个衬底上结合在一起。 电荷存储装置可以是晶体管，例如作为级联放大级连接的一对FET晶体管中的一个。 成像平面可由一个成像装置或多个成像装置构成，以便形成马赛克。 成像装置可以被配置为用于某些应用的狭缝，狭缝或槽被扫描在成像平面上。 控制电子器件可以包括用于寻址单个像素电路以用于从像素电路读取累积电荷的寻址逻辑。 可以通过确定用于显示的像素的最大和最小电荷值来实现成像优化，将极大灰度或颜色值分配给最大和最小电荷值，并根据极端之间的滑动刻度将灰度或颜色值分配给单个像素 价值观。 通过将检测到的像素值与对于直接入射辐射预期的最小检测电荷值相关的阈值进行比较，并且丢弃小于所述阈值的检测像素值，可以检测和丢弃散射辐射。

    Automatic isodose plotter
    10.
    发明授权
    Automatic isodose plotter 失效
    自动ISODOSE PLOTTER

    公开(公告)号：US3864568A

    公开(公告)日：1975-02-04

    申请号：US26423072

    申请日：1972-06-19

    Applicant: SHM NUCLEAR

    Inventor： HELGESSON A

    IPC: G01T1/29 ,  G01N23/00

    CPC classification number: G01T1/2964

    Abstract: 1. ISODOSE PLOTTING APPARATUS FOR PLOTTING PENETRATION TYPE RADIATION MEASUREMENTS COMPRISING: PHANTOM MEANS AT WHICH A RADIATION SOURCE IS DIRECTED AND IN WHICH RADIATION MEASUREMENTS ARE TAKEN, DETECTION MEANS FOR TAKING RADIATION INTENSITY MEASUREMENTS IN SAID PHANTOM MEANS, SAID DETECTION MEANS HAVING A MOVABLE DETECTOR MEANS WHICH GENERATES SIGNALS FOR MEASURING DIRECT RADIATION INTENSITY, DRIVE MEANS HAVING A PLURALITY OF DRIVE AXES FOR MOVING SAID DETECTOR MEANS IN SAID PHANTOM MEANS, CONTROL MEANS HAVING A VELOCITY CONTROL AND A SERVO CONTROL RESPONSIVE TO SIGNALS FROM SAID DETECTORS MEANS FOR MOVING SAID DETECTOR MEANS UNDER VELOCITY CONTROL ON A FIRST DRIVE AXIS AND UNDER SERVO CONTROL ON A SECOND DRIVE AXIS ALONG A PATH REPRESENTATVE OF A PREDETERMINED DOSAGE WITHIN SAID PHANTOM MEANS, SENSING MEANS FOR SENSING THAT A PREDETERMINED DISTANCE OF MOVEMENT OF SAID DETECTOR ON AN AXIS UNDER SERVO CONTROL HAS OCCURRED RELATIVE TO A PREDETERMINED DISTANCE OF MOVEMENT OF AN AXIS UNDER VELOCITY CONTROL, AND SWITCHING MEANS RESPONSIVE TO SAID SENSING MEANS FOR AUTOMATICALLY INTERCHANGING THE DRIVE AXIS UNDER SAID VELOCITY CONTROL AND SAID SERVO CONTROL WHEN A PREDETERMINED DISTANCE OF MOVEMENT OF SAID DETECTOR MEANS ON SAID AXIS UNDER SERVO CONTROL HAS OCCURRED RELATIVE TO A PREDETERMINED DISTANCE OF MOVEMENT ON SAID AXIS UNDER VELOCITY CONTROL.

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