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1.发明授权Method and device for the taking of digital images with control and optimization of the exposure time of the object to X or .gamma. radiation 失效用于采集数字图像的方法和装置，控制和优化对象对X或γ辐射的曝光时间
公开(公告)号：US5937027A
公开(公告)日：1999-08-10
申请号：US887261
申请日：1997-07-02
CPC分类号： H04N5/3696 , G01T1/2928 , H04N5/2351 , H04N5/32 , H04N5/353 , H05G1/44 , H05G1/60
摘要： A method and a device for taking digital images in which the exposure time of the object to X or .gamma. rays is controlled and optimized in a way that produces, with each taking of an image, a non-saturated image and minimizes the dose of radiation necessary to produce this image. The device includes at least one image sensor having measurement pixels and pixels. The measurement pixels measure a current representative of a dose of radiation received by the object, and the image pixels are used to form the digital image. The dose of radiation measured by the measurement pixels is compared to a guide-line value, and when this dose measurement reaches the guide-line value the collection of the electrical charge by the image pixels is stopped. The stopping of the collection of the electrical charges is performed without stopping the radiation emission.
摘要翻译： 一种用于拍摄数字图像的方法和装置，其中对象对X或γ射线的曝光时间被控制和优化，以产生每次拍摄图像的非饱和图像并使辐射剂量最小化 必要的产生这个图像。 该装置包括至少一个具有测量像素和像素的图像传感器。 测量像素测量代表由对象接收的辐射剂量的电流，并且使用图像像素来形成数字图像。 将由测量像素测量的辐射剂量与引导线值进行比较，并且当该剂量测量达到引导线值时，图像像素的电荷的收集被停止。 在不停止辐射的情况下执行收集电荷的停止。
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公开(公告)号：US06295337B1
公开(公告)日：2001-09-25
申请号：US09403957
申请日：1999-11-17
申请人： Bernard Thevenin , Francis Glasser
发明人： Bernard Thevenin , Francis Glasser
IPC分类号： H05G154
CPC分类号： A61B6/145
摘要： The present invention relates to a digital radiography device with protection against electrical risks, having: a radiation source (10); a sensor (12) connected to an electronic card (13) of a computer (14), first and second assemblies (20, 21) isolated from each other from the galvanic point of view, the first assembly (20) comprising electronic means connected to the sensor (12), the second assembly (21) comprising means for supplying a voltage for supplying the sensor (12) during the presence of radiation and a voltage for supplying the sensor part of the card (13), and means for providing management of the sensor, recovery of the data and processing thereof; the two assemblies (20, 21) exchanging information by optical means.
摘要翻译： 本发明涉及一种具有防电风险的数字放射摄影装置，具有：辐射源（10）;连接到计算机（14）的电子卡（13）的传感器（12），第一和第二组件 ，21），从电流角度彼此隔离，所述第一组件（20）包括连接到所述传感器（12）的电子装置，所述第二组件（21）包括用于提供用于供应所述传感器（12）的电压的装置， 在存在辐射和用于供应卡（13）的传感器部分的电压的情况下，以及用于提供传感器的管理，数据的恢复和处理的装置; 两个组件（20,21）通过光学装置交换信息。
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公开(公告)号：US5802138A
公开(公告)日：1998-09-01
申请号：US792176
申请日：1997-01-30
申请人： Francis Glasser , Olivier Peyret
发明人： Francis Glasser , Olivier Peyret
CPC分类号： A61B6/032 , A61B6/4085 , G01T1/026 , G01T1/2928
摘要： The present invention relates to a multisection imaging device incorporating a source (10) of ionizing radiation (11) and an array of semiconductor detectors (12) able to receive said radiation (11) having traversed a means (14), in which the semiconductor detectors are bidimensional detectors associated with one another in order to obtain several detection rings able to rotate about said means (14), so as to permit the simultaneous acquisition of several imaging sections.
摘要翻译： 本发明涉及一种结合有电离辐射源（10）的多分辨成像装置和能够接收横穿了装置（14）的所述辐射（11）的半导体检测器阵列（12），其中半导体 检测器是彼此相关联的二维检测器，以便获得能够围绕所述装置（14）旋转的若干检测环，以便允许同时采集多个成像部分。
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公开(公告)号：US08491190B2
公开(公告)日：2013-07-23
申请号：US13002545
申请日：2010-11-30
申请人： Francis Glasser , Michel Garcin
发明人： Francis Glasser , Michel Garcin
IPC分类号： G01T7/00
摘要： The general field of the invention includes methods of calibrating X-ray detection systems, the systems including at least one X-ray generator and a detection array having a matrix of detecting semiconductor pixels and processing and calibration electronics. The calibration method includes, for all or some of the pixels: operating the X-ray generator at its nominal high voltage, the generator being placed opposite the detector; counting, using the processing and calibration electronics, the pulses emitted by each pixel through the effect of the radiation produced by the generator; establishing, for each pixel, an amplitude distribution for the counted pulses; applying, to each amplitude distribution, a statistical indicator so as to identify a particular amplitude, this particular amplitude then corresponding to the energy corresponding to said statistical indicator; and adjusting, using the processing and calibration electronics, calibration parameters for each pixel, taking account of the energy-amplitude relationship thus established.
摘要翻译： 本发明的一般领域包括校准X射线检测系统的方法，所述系统包括至少一个X射线发生器和具有检测半导体像素的矩阵的检测阵列以及处理和校准电子器件。 校准方法包括对于所有或某些像素：将X射线发生器以其标称高电压操作，发生器放置在与检测器相对的位置; 使用处理和校准电子元件计数由每个像素通过发生器产生的辐射的影响发射的脉冲; 为每个像素建立计数脉冲的幅度分布; 对每个幅度分布应用统计指示符，以便识别特定幅度，该特定幅度然后对应于对应于所述统计指标的能量; 并且考虑到如此建立的能量 - 幅度关系，对每个像素调整使用处理和校准电子学的校准参数。
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公开(公告)号：US07564040B2
公开(公告)日：2009-07-21
申请号：US10539156
申请日：2003-11-25
IPC分类号： G01J1/42
摘要： A device for processing a signal (i) derived from a particular detector, the device including an integrator for measuring the total charge transported by an input signal (i2) feeding the integrator for a predetermined time interval. The device further includes a plurality of units for receiving detector signal (i) derived from the particle detector, reducing the background noise present in the detector signal (i), and producing the input signal (i2). The invention is applicable to various devices and appliances for measuring flow of particles such as photons.
摘要翻译： 一种用于处理从特定检测器导出的信号（i）的装置，所述装置包括用于测量由给定积分器的预定时间间隔的输入信号（i2）传输的总电荷的积分器。 所述装置还包括用于接收从所述粒子检测器导出的检测器信号（i）的多个单元，减少存在于所述检测器信号（i）中的背景噪声，并产生所述输入信号（i2）。 本发明适用于各种用于测量诸如光子的颗粒流动的装置和装置。
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6.发明申请公开(公告)号：US20090121145A1
公开(公告)日：2009-05-14
申请号：US11665545
申请日：2005-10-27
IPC分类号： G01T1/24
CPC分类号： G01T1/24 , G01T1/29 , G01T1/2928 , H04N5/32
摘要： The particle detection circuit comprises a plurality of basic circuits. Each basic circuit comprises a particle detector element connected to an associated counter and a summing circuit having a first input connected to the output of the counter. Basic circuits, each forming a subpixel, are grouped together by series connection of their summing circuits to form a pixel. The output of the pixel, formed by the output of the summing circuit of a last basic circuit of the pixel, supplies counting signals representative of the number of particles detected by the set of basic circuits of the pixel. Disabling certain basic circuits of the pixel, by selective zero resetting of the first input of their summing circuit, can enable only the particles detected by certain zones of the pixel to be counted.
摘要翻译： 粒子检测电路包括多个基本电路。 每个基本电路包括连接到相关联的计数器的粒子检测器元件和具有连接到计数器的输出的第一输入的求和电路。 每个形成子像素的基本电路通过其求和电路的串联连接分组在一起以形成像素。 由像素的最后基本电路的求和电路的输出形成的像素的输出提供表示由该像素的一组基本电路检测的粒子数的计数信号。 通过对它们的求和电路的第一输入的选择性零复位来禁止像素的某些基本电路，仅能够对像素的特定区域检测到的粒子进行计数。
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7.发明授权公开(公告)号：US09826182B2
公开(公告)日：2017-11-21
申请号：US13245654
申请日：2011-09-26
申请人： Francis Glasser , Loïck Verger
发明人： Francis Glasser , Loïck Verger
CPC分类号： H04N5/3651 , G01T7/005 , H04N5/32 , H04N5/367
摘要： Techniques for controlling a stability of response of a semi-conductor matrix imager composed of pixels, including a first phase of characterizing the stability of the pixels and a second phase of correcting the signals arising from the pixels during the measurements. The pixels are classed into stable pixels and unstable pixels according to a predetermined criterion, the unstable pixels being associated individually with a stable pixel whose characteristics serve as base for correcting signals arising from the unstable pixels.
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8.发明授权公开(公告)号：US07652260B2
公开(公告)日：2010-01-26
申请号：US11665545
申请日：2005-10-27
IPC分类号： G01T1/24
CPC分类号： G01T1/24 , G01T1/29 , G01T1/2928 , H04N5/32
摘要： The particle detection circuit comprises a plurality of basic circuits. Each basic circuit comprises a particle detector element connected to an associated counter and a summing circuit having a first input connected to the output of the counter. Basic circuits, each forming a subpixel, are grouped together by series connection of their summing circuits to form a pixel. The output of the pixel, formed by the output of the summing circuit of a last basic circuit of the pixel, supplies counting signals representative of the number of particles detected by the set of basic circuits of the pixel. Disabling certain basic circuits of the pixel, by selective zero resetting of the first input of their summing circuit, can enable only the particles detected by certain zones of the pixel to be counted.
摘要翻译： 粒子检测电路包括多个基本电路。 每个基本电路包括连接到相关联的计数器的粒子检测器元件和具有连接到计数器的输出的第一输入的求和电路。 每个形成子像素的基本电路通过其求和电路的串联连接分组在一起以形成像素。 由像素的最后基本电路的求和电路的输出形成的像素的输出提供表示由该像素的一组基本电路检测的粒子数的计数信号。 通过对它们的求和电路的第一输入的选择性零复位来禁止像素的某些基本电路，仅能够对像素的特定区域检测到的粒子进行计数。
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公开(公告)号：US20110233394A1
公开(公告)日：2011-09-29
申请号：US13002545
申请日：2010-11-30
申请人： Francis Glasser , Michel Garcin
发明人： Francis Glasser , Michel Garcin
IPC分类号： G01D18/00
摘要： The general field of the invention includes methods of calibrating X-ray detection systems, the systems including at least one X-ray generator and a detection array having a matrix of detecting semiconductor pixels and processing and calibration electronics. The calibration method includes, for all or some of the pixels: operating the X-ray generator at its nominal high voltage, the generator being placed opposite the detector; counting, using the processing and calibration electronics, the pulses emitted by each pixel through the effect of the radiation produced by the generator; establishing, for each pixel, an amplitude distribution for the counted pulses; applying, to each amplitude distribution, a statistical indicator so as to identify a particular amplitude, this particular amplitude then corresponding to the energy corresponding to said statistical indicator; and adjusting, using the processing and calibration electronics, calibration parameters for each pixel, taking account of the energy-amplitude relationship thus established.
摘要翻译： 本发明的一般领域包括校准X射线检测系统的方法，所述系统包括至少一个X射线发生器和具有检测半导体像素的矩阵的检测阵列以及处理和校准电子器件。 校准方法包括对于所有或某些像素：将X射线发生器以其标称高电压操作，发生器放置在与检测器相对的位置; 使用处理和校准电子元件计数由每个像素通过发生器产生的辐射的影响发射的脉冲; 为每个像素建立计数脉冲的幅度分布; 向每个幅度分布施加统计指示符，以便识别特定幅度，该特定幅度然后对应于对应于所述统计指标的能量; 并且考虑到如此建立的能量 - 幅度关系，对每个像素调整使用处理和校准电子学的校准参数。
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公开(公告)号：US20060202126A1
公开(公告)日：2006-09-14
申请号：US10539156
申请日：2003-11-25
IPC分类号： G01T1/24
摘要： A device for processing a signal (i) derived from a particular detector, the device including an integrator for measuring the total charge transported by an input signal (i2) feeding the integrator for a predetermined time interval. The device further includes a plurality of units for receiving detector signal (i) derived from the particle detector, reducing the background noise present in the detector signal (i), and producing the input signal (i2). The invention is applicable to various devices and appliances for measuring flow of particles such as photons.
摘要翻译： 一种用于处理从特定检测器导出的信号（i）的装置，该装置包括用于测量由给定积分器的预定时间间隔的输入信号（i2> 2）传送的总电荷的积分器。 该装置还包括多个单元，用于接收从粒子检测器导出的检测器信号（i），减少检测器信号（i）中存在的背景噪声，并产生输入信号（i 2> 2） 。 本发明适用于各种用于测量诸如光子的颗粒流动的装置和装置。
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