公开(公告)号：US08546765B2

公开(公告)日：2013-10-01

申请号：US12997891

申请日：2009-06-19

Applicant: Walter Ruetten ,  Lex Alving ,  Thomas Frederik Buss ,  Tiemen Poorter ,  Peter Bas Anton Wolfs

Inventor： Walter Ruetten ,  Lex Alving ,  Thomas Frederik Buss ,  Tiemen Poorter ,  Peter Bas Anton Wolfs

IPC: G01T1/24

CPC classification number: G01T1/24 ,  H04N5/32 ,  H04N5/3559

Abstract: An x-ray detector and its pixel circuit are described, that allow to cover a large dynamic range with automatic selection of the sensitivity setting in each pixel, thus providing improved signal to noise ratio with all exposure levels. X-ray detectors are required to cover a large dynamic range. The largest exposure determines the required pixel capacitance. However, a large pixel capacitance gives a bad signal to noise ratio with small exposures e.g. in the dark parts of the image. This invention disclosure describes several approaches to provide automatic sensitivity selection in the pixels. This ensures that low signals are stored in a small capacitor or read out with a high sensitivity with corresponding good signal to noise ratio, while larger signals are stored in larger capacitors or are read out with lower sensitivity so that no information is lost.

Abstract translation: 描述了X射线检测器及其像素电路，其允许通过自动选择每个像素中的灵敏度设置来覆盖大的动态范围，从而在所有曝光水平提供改善的信噪比。 X射线探测器需要覆盖大的动态范围。 最大的曝光决定所需的像素电容。 然而，较大的像素电容给出了较小的曝光率的信噪比差。 在图像的黑暗部分。 本发明公开描述了在像素中提供自动灵敏度选择的几种方法。 这确保了低信号被存储在小电容器中或以高灵敏度读出，具有相应的良好的信噪比，而较大的信号存储在较大的电容器中或以较低的灵敏度读出，从而不会丢失信息。

公开(公告)号：US20110260066A1

公开(公告)日：2011-10-27

申请号：US13129310

申请日：2009-11-12

Applicant: Gérard Vieux

Inventor： Gérard Vieux

IPC: G01T1/20 ,  B32B37/12 ,  B32B37/14 ,  B32B37/02

CPC classification number: G01T1/2018 ,  Y10T156/10

Abstract: A solid-state radiation detector comprises a photosensitive sensor associated with a radiation converter or scintillator. The fields of application of this type of detector are notably radiology: radiography, fluoroscopy and mammography, but also nondestructive testing. The detector comprises a rigid entrance window passed through by the first radiation upstream of the scintillator, the scintillator being placed between the sensor and the entrance window, the sensor comprising a substrate and photosensitive elements placed on the substrate. According to the invention, the entrance window is shaped so as to closely fit the form of the scintillator and is fixed in a moisture-tight manner on the substrate of the sensor.

Abstract translation: 固体辐射检测器包括与辐射转换器或闪烁体相关联的感光传感器。 这种检测器的应用领域特别是放射学：放射摄影，荧光透视和乳房X线照相术，还可以进行非破坏性检测。 检测器包括由闪烁体上游的第一辐射通过的刚性入口窗口，闪烁体被放置在传感器和入口窗口之间，传感器包括衬底和放置在衬底上的感光元件。 根据本发明，入口窗口被成形为紧密地配合闪烁体的形状，并以湿气方式固定在传感器的基片上。

公开(公告)号：US20100328508A1

公开(公告)日：2010-12-30

申请号：US12739794

申请日：2008-10-27

Applicant: Jean-Michel Vignolle ,  Thibaut Wirth

Inventor： Jean-Michel Vignolle ,  Thibaut Wirth

IPC: H04N5/335

CPC classification number: H04N5/335 ,  H04N5/32

Abstract: The present invention relates to a method of processing images arising from a photosensitive detector of the type in particular made by techniques of depositing semiconductor materials. The method consists in correcting an image acquired (INPUT(T)) by the detector by a gain image (Gain(T)). According to the invention, an image for correcting drifting gain in terms of temperature (C(T1), C(T2)) as a function of a temperature (T) measured by the detector during the acquisition of the image (INPUT(T)) is applied to the image acquired. The invention also relates to a photosensitive detector in which the means for correcting drifting gain in terms of temperature are included, independently of the gain image (Gain(T)).

Abstract translation: 本发明涉及一种处理由特别是通过沉积半导体材料的技术制成的类型的光敏检测器产生的图像的方法。 该方法包括通过增益图像（Gain（T））校正由检测器获取的图像（INPUT（T））。 根据本发明，用于在采集图像（INPUT（T））期间根据由检测器测量的温度（T）的函数来校正温度（C（T1），C（T2））的漂移增益的图像， ）应用于获取的图像。 本发明还涉及一种光敏检测器，其中包括与增益图像（Gain（T））无关的用于校正温度漂移增益的装置。

公开(公告)号：US20100291726A1

公开(公告)日：2010-11-18

申请号：US12600908

申请日：2008-05-22

Applicant: Gerard Vieux ,  Jean-Michel Vignolle ,  Pierre Rohr ,  David Couder ,  Dubois Sebastien

Inventor： Gerard Vieux ,  Jean-Michel Vignolle ,  Pierre Rohr ,  David Couder ,  Dubois Sebastien

IPC: H01L31/18

CPC classification number: H01L27/14663 ,  H01L27/14618 ,  H01L2924/0002 ,  H01L2924/00

Abstract: The present invention relates to a method of fabricating a radiation detector comprising a photosensitive sensor assembly (1, 4), a scintillator (6) that converts the radiation into radiation to which the photosensitive sensor assembly (1, 4) is sensitive, the scintillator (6) being fastened by adhesive bonding to the sensor assembly, the sensor assembly comprising a substrate (4) and several attached sensors (1), the sensors (1) each having two faces (11, 12), a first face (11) of which is bonded to the substrate (4) and a second face (12) of which is bonded to the scintillator (6). The method consists in linking the following operations: the sensors (1) are deposited via their second face (12) on an adhesive film (13); and the sensors (1) are bonded via their first face (11) to the substrate (4).

Abstract translation: 本发明涉及一种制造辐射探测器的方法，该辐射探测器包括光敏传感器组件（1,4），将辐射转换成光敏传感器组件（1,4）敏感的辐射的闪烁体（6），闪烁体 （6）通过粘合剂粘合固定到传感器组件，传感器组件包括基底（4）和几个附接的传感器（1），传感器（1）各自具有两个面（11,12），第一面（11,12） ）结合到基板（4）上，第二面（12）与闪烁体（6）接合。 该方法包括以下操作：将传感器（1）经由其第二面（12）沉积在粘合膜（13）上; 并且传感器（1）经由其第一面（11）接合到基板（4）。

公开(公告)号：US07728889B2

公开(公告)日：2010-06-01

申请号：US10575985

申请日：2004-10-13

Applicant: Paul Apard ,  David Couder

Inventor： Paul Apard ,  David Couder

IPC: H04N3/14 ,  H04N5/335

CPC classification number: H04N5/378 ,  H04N5/3577 ,  H04N5/374

Abstract: The present invention relates to a method of driving a photosensitive device comprising a matrix of photosensitive pixels distributed at the intersections of rows and columns of the matrix. The invention relates more particularly to the control of such devices used for the detection of radiological images. The method consists in subjecting the matrix to an image cycle that includes a reset phase prior to an image acquisition phase. The rows of the matrix are distributed in several groups, and during the reset phase, the method consists in resetting all the rows in any one group simultaneously and in resetting each group of rows in succession.

Abstract translation: 本发明涉及一种驱动感光装置的方法，该感光装置包括分布在矩阵的行和列的交点处的感光像素矩阵。 本发明更具体地涉及用于检测放射图像的这种装置的控制。 该方法包括对矩阵进行包括图像采集阶段之前的复位阶段的图像周期。 矩阵的行分布在几个组中，并且在复位阶段期间，该方法包括同时重置任何一个组中的所有行，并在每个组中重新连接。

公开(公告)号：US20100045234A1

公开(公告)日：2010-02-25

申请号：US12516558

申请日：2007-11-14

Applicant: Thibaut Wirth ,  Nicolas Demartinecourt ,  Robert Neyret

Inventor： Thibaut Wirth ,  Nicolas Demartinecourt ,  Robert Neyret

IPC: H02J7/00

CPC classification number: H02J7/0045 ,  A61B6/4405 ,  H01R13/2471 ,  H01R13/62905

Abstract: The present invention relates to a device for recharging a battery of a portable ionizing-radiation sensor resting on a recharging base. The sensor includes, on one or more accessible faces, a plurality of electrical-contact areas connected to the battery that powers the sensor. The recharging base comprises a device for mobilizing one or more mobile contacts. The mobile contacts are connected to a power source. The mobile contacts mechanically enter the body (i.e., housing) of the recharging base and mechanically protrude from the body of the recharging base through one or more openings made in the body of the recharging base. The mobile contacts are electrically in contact with the plurality of electrical-contact areas of the sensor if one or more of the plurality of electrical-contact areas are positioned facing the openings when the mobile contacts protrude from the recharging base. An embodiment of the invention may be used for X-ray or Gamma-ray medical imaging.

Abstract translation: 本发明涉及一种用于为依靠充电基座的便携式电离辐射传感器的电池再充电的装置。 所述传感器在一个或多个可接近的面上包括连接到所述电池的多个电接触区域，所述多个电接触区域为所述传感器供电。 充电基座包括用于动员一个或多个移动触点的装置。 移动触点连接到电源。 移动触点机械地进入充电基座的主体（即壳体），并且通过在充电基座的主体中制成的一个或多个开口机械地从充电基座的主体突出。 如果移动触点从充电基座突出，多个电接触区域中的一个或多个面向开口定位，则移动触点与传感器的多个电接触区域电接触。 本发明的实施例可用于X射线或γ射线医学成像。

公开(公告)号：USD601254S1

公开(公告)日：2009-09-29

申请号：US29280462

申请日：2007-05-29

Applicant: Sven Weichert

Designer： Sven Weichert

公开(公告)号：US06885397B1

公开(公告)日：2005-04-26

申请号：US09555517

申请日：1998-12-04

Applicant: Thierry Ducourant

Inventor： Thierry Ducourant

IPC: G06T1/00 ,  G06T5/20 ,  H04N1/409 ,  H04N5/217 ,  H04N5/335 ,  H04N9/64

CPC classification number: G06T5/20

Abstract: A process for correcting noise level of an image detector including photosensitive points arranged in rows and in columns. Within each row, the points are distributed into detector points and into corrector points. The detector points deliver a measurement value dependent on a luminous cue to which they are exposed. The corrector points deliver a dark value serving in the correction of the measurement values. Within at least one row, the detector points are distributed into at least two groups and the measurement values are corrected with a first or a second correction value depending on the group from which they originate. Such a process may find application to digitized-image detectors.

Abstract translation: 一种用于校正包括以列和列布置的感光点的图像检测器的噪声电平的处理。 在每一行中，点被分布到检测点和校正点。 检测器点提供取决于它们所暴露的发光提示的测量值。 校正点在校正测量值时提供一个暗值。 在至少一行内，检测点被分配到至少两个组中，并且根据它们起源的组利用第一或第二校正值校正测量值。 这样的处理可以应用于数字化图像检测器。

公开(公告)号：US20010004328A1

公开(公告)日：2001-06-21

申请号：US09736121

申请日：2000-12-15

Applicant: TRIXELL S.A.S.

Inventor： Thierry Ducourant

IPC: G11C005/00

CPC classification number: G11C27/026

Abstract: A circuit for the reading of charges injected at its input comprises a read MOS transistor, the type of which conditions the polarity of the charges that the read circuit is capable of reading without getting blocked, and an integration capacitor mounted between a first electrode of the drain-source pair of the read MOS transistor and a reference potential. The input of the circuit is at the second electrode of the drain-source pair of the read MOS transistor. The injected charges must cross the read MOS transistor to be integrated by the capacitor. The read MOS transistor is controlled by a control voltage that varies in a manner that is substantially inversely proportional to the input voltage. The circuit has means to detect the arrival, at the input, of charges with a polarity opposite to the polarity of the charges that it is capable of reading and means for the imposing, on the input voltage, after a detection of this kind, of an equilibrium value equal or close to a basic value that it takes between two successive operations of integrating charges with the desired polarity so as to prevent a prolonged blocking of the read MOS transistor at the arrival of charges with a desired polarity

Abstract translation: 用于读取在其输入处注入的电荷的电路包括读取MOS晶体管，其类型决定了读取电路能够读取而不被阻塞的电荷的极性，以及集成电容器，安装在第一电极 读取MOS晶体管的漏 - 源对和参考电位。 电路的输入位于读取MOS晶体管的漏 - 源对的第二电极。 注入的电荷必须穿过读取的MOS晶体管才能被电容器集成。 读出的MOS晶体管是以与输入电压基本上成反比的方式变化的控制电压来控制的。 该电路具有在这种检测之后，在输入端检测与输入电压相反极性与其能够读取的电荷极性相反的电荷到达输入电压的装置的装置， 平衡值等于或接近基本值，该基本值在两个相继的操作之间积分所需的极性电荷，以防止在所需极性的电荷到达时读取的MOS晶体管被长期阻塞