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公开(公告)号：US20040065837A1
公开(公告)日：2004-04-08
申请号：US10315266
申请日：2002-12-10
IPC分类号： G01T001/24
CPC分类号： G01T1/246 , G01T1/244 , G01T1/247 , G01T7/00 , H04N5/23203 , H04N5/23241 , H04N5/32
摘要： An electronic image sensor includes a first subsystem that has a radiation sensitive sensor array that captures an image upon the presence of incident radiation, a second subsystem that provides signals to control the reading out of data from the sensor array; and a third subsystem that provides electrical power to the first and second subsystems. A fourth subsystem has a controller that provides control signals to the third subsystem, to selectively control the provision of electrical power to the first subsystem and the second subsystem.
摘要翻译： 电子图像传感器包括具有辐射敏感传感器阵列的第一子系统，所述辐射敏感传感器阵列在存在入射辐射时捕获图像;第二子系统，其提供信号以控制从所述传感器阵列读出的数据; 以及向第一和第二子系统提供电力的第三子系统。 第四子系统具有向第三子系统提供控制信号的控制器，以选择性地控制向第一子系统和第二子系统提供电力。
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72.发明授权公开(公告)号：US06469312B2
公开(公告)日：2002-10-22
申请号：US09822210
申请日：2001-04-02
申请人： Toshitaka Agano
发明人： Toshitaka Agano
IPC分类号： G01T116
摘要： In an energetic-beam detection apparatus having a selenium detector which includes a substrate and an energetic-beam absorber being formed on the substrate and containing selenium, a temperature detecting unit detects a temperature of the selenium detector, and a temperature control unit controls the temperature of the selenium detector so that the temperature is maintained in a predetermined range when the selenium detector is in operation. Alternatively, when the temperature of the selenium detector is outside a predetermined range, an operation suppressing unit suppresses the operation of the selenium detector, or a notification unit notifies a user of the deviation of the temperature of the selenium detector from the predetermined range.
摘要翻译： 在具有含硒检测器的能量束检测装置中，温度检测部检测硒检测器的温度，温度控制部控制温度，该硒检测器包括基板和在基板上形成有硒的能量吸收体， 的硒检测器，使得当硒检测器运行时，温度保持在预定范围内。 或者，当硒检测器的温度在预定范围之外时，操作抑制单元抑制硒检测器的操作，或者通知单元将硒检测器的温度偏差从预定范围通知给用户。
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公开(公告)号：US5986278A
公开(公告)日：1999-11-16
申请号：US179078
申请日：1998-10-26
IPC分类号： G01T1/24 , G01N23/04 , G01T1/26 , G01T1/29 , G03G5/043 , G03G5/082 , G03G5/14 , H01L27/146 , G03G5/04
CPC分类号： H01L27/14676 , G01N23/04 , G01T1/246 , G03G5/0433 , G03G5/08207 , G03G5/144
摘要： Filmless photon imaging sensor plates and apparatus which are particularly effective in medical radiology and industrial applications including, but not limited to high resolution mammography. In combination, the sensor plates and apparatus provide rapid production of high resolution images which exhibit higher sensitivity and wider dynamic range than contemporary X-ray systems. Novel sensor plate structures provide images having attributes of increased sensitivity; dual plate design providing increased pixel read-out speed and differential dual energy image production; and electrically isolated segments by which a plurality of pixels are read concurrently to reduce overall image processing time. Generally, the plates employ a homogeneous photoconductive material such as amorphous selenium and are read by exposing each pixel sized area to a small diameter scanning light beam. Using light beam scanning, resulting plate design promises low cost manufacture of both sensor plates and associated apparatus. Novel application of electric fields during plate preparation, exposure and read-out provides improved sensor plate performance. A plurality of precisely-positioned light beams are scanned across the sensor through the use of a novel optical system employing an elongated light source disposed within a rotating drum, the drum being generally opaque with a helical transparent pattern which in combination with a series of lenses and a slit provides the plurality of precisely-positioned scanning light beams. By changing slit and beam widths, variable resolution operation is achieved.
摘要翻译： 在医学放射学和工业应用中特别有效的无膜光子成像传感器板和装置，包括但不限于高分辨率乳腺摄影术。 组合在一起，传感器板和设备提供了高分辨率图像的快速生产，其表现出比当代X射线系统更高的灵敏度和更宽的动态范围。 新型传感器板结构提供具有增加灵敏度属性的图像; 双板设计提供增加的像素读出速度和差分双能量图像制作; 以及同时读取多个像素以减少整体图像处理时间的电隔离段。 通常，板采用均匀的光电导材料，例如非晶硒，并且通过将每个像素尺寸的区域暴露于小直径扫描光束来读取。 使用光束扫描，得到的板设计有利于传感器板和相关设备的低成本制造。 在制版，曝光和读取期间电场的新颖应用提供了改进的传感器板性能。 多个精确定位的光束通过使用设置在旋转滚筒内的细长光源的新型光学系统跨越传感器进行扫描，滚筒通常为不透明的，具有与一系列透镜相结合的螺旋透明图案 并且狭缝提供多个精确定位的扫描光束。 通过改变狭缝和光束宽度，实现可变分辨率操作。
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公开(公告)号：US5880472A
公开(公告)日：1999-03-09
申请号：US827512
申请日：1997-03-28
IPC分类号： G01T1/00 , G01T1/24 , G01T1/29 , G03B42/02 , G03G5/043 , G03G5/08 , G03G5/082 , G03G5/14 , H01L27/146 , H01L31/0376 , H01L31/08 , H01L31/0272 , H01L31/115
CPC分类号： H01L31/085 , G01T1/246 , G03G5/0433 , G03G5/08207 , G03G5/144 , H01L27/14676 , H01L31/0376 , Y02E10/50
摘要： A multilayer plate for X-ray imaging is provided, which includes a substrate, a biasing electrode and a selenium-based membrane sandwiched between the substrate and the biasing electrode. The selenium-based membrane comprises a thick photoconductive layer of doped amorphous selenium and one or two thin buffer layers. One of the buffer layers is an amorphous arsenic triselenide layer positioned between the photoconductive layer and the substrate, and the other buffer layer is a unipolar conducting layer of alkali doped selenium positioned between the photoconductive layer and the biasing electrode. Preferably both layers are included. A method of producing such multilayer plates is also disclosed.
摘要翻译： 提供了一种用于X射线成像的多层板，其包括基板，偏置电极和夹在基板和偏置电极之间的硒基膜。 硒基膜包括掺杂的非晶硒的厚的光电导层和一个或两个薄的缓冲层。 缓冲层中的一个是位于光电导层和衬底之间的非晶砷三硒化物层，另一个缓冲层是位于光电导层和偏置电极之间的碱性掺杂硒的单极导电层。 优选地包括两层。 还公开了制造这种多层板的方法。
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75.发明授权Method and apparatus for acquiring an X-ray image using a thin film transistor array 失效使用薄膜晶体管阵列获取X射线图像的方法和装置
公开(公告)号：US5331179A
公开(公告)日：1994-07-19
申请号：US44428
申请日：1993-04-07
申请人： Denny L. Y. Lee , Lothar S. Jeromin
发明人： Denny L. Y. Lee , Lothar S. Jeromin
摘要： The present invention relates to an X-ray image capturing element comprising a panel having a layered structure, including a conductive layer comprising a plurality of discrete microplates having dimensions coextensive with an image pixel and a plurality of access electrodes and electronic components built on the panel, which allow access to the microplates for capturing and reading out a latent radiographic image captured in the panel in the form of stored electrical charges.
摘要翻译： 本发明涉及一种包括具有层状结构的面板的X射线图像捕获元件，该面板包括导电层，该导电层包括具有与图像像素共同延伸的尺寸的多个离散微板，以及多个存取电极和构成在该面板上的电子元件 ，其允许访问微板用于以存储的电荷的形式捕获和读出在面板中捕获的潜在放射照相图像。
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76.发明授权Element, device and associated method for capturing a latent radiographic image 失效用于捕获潜在放射照相图像的元件，装置和相关方法
公开(公告)号：US5166524A
公开(公告)日：1992-11-24
申请号：US723311
申请日：1991-06-28
申请人： Denny L. Y. Lee , Lothar S. Jeromin
发明人： Denny L. Y. Lee , Lothar S. Jeromin
IPC分类号： G01T1/26 , G01T1/29 , G03G15/054
CPC分类号： G03G15/054 , G01T1/246
摘要： An element, a device and an associated method for capturing radiographic images. More particularly, the present invention uses a unique microcapacitor matrix structure to hold varying electrical charges representing a latent radiographic image. The microcapacitor matrix structure or element comprises a first, electrically conductive, backing layer, a second photoconductive layer, a third dielectric layer and a plurality of conductive microplates having dimensions coextensive with a minimum resolvable picture element. The method comprises (a) preventing actinic radiation from impinging on the element, (b) applying an electric potential difference between the plurality of microplates and the backing layer, (c) impinging imagewise modulated X-ray radiation for a first time period onto the element, and (d) after the first time period, stopping the applying step.
摘要翻译： 用于捕获放射照相图像的元件，装置和相关联的方法。 更具体地，本发明使用独特的微电容器矩阵结构来保持表示潜在放射线图像的不同电荷。 微电容器矩阵结构或元件包括第一导电背衬层，第二光电导层，第三电介质层和具有与最小可解析图像元素共同延伸的尺寸的多个导电微板。 该方法包括：（a）防止光化辐射撞击到元件上，（b）在多个微孔板和背衬层之间施加电位差，（c）将图像调制的X射线辐射第一时间段照射到 元素，以及（d）在第一时间段之后，停止施加步骤。
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77.发明授权Electrostatic image sensor having an electret which polarizes a photoconductive layer 失效具有使光电导层极化的驻极体的静电图像传感器
公开(公告)号：US4818857A
公开(公告)日：1989-04-04
申请号：US106262
申请日：1987-10-09
IPC分类号： G03B42/02 , A61B6/00 , G01T1/14 , G01T1/29 , H01L31/08 , H04N1/113 , H04N5/335 , H01J31/50 , H01J40/14
CPC分类号： G01T1/14 , G01T1/246 , G01T1/2935 , H01L31/085
摘要： An embodiment of the electrostatic image sensor comprises essentially two electrodes, one layer of photoconductive material and one dielectric layer comprising an electret designed to polarize the photoconductive layer without requiring a voltage source during the recording of an image. During a recording stage, a change-over switch short-circuits the electrodes. Photocarriers are released by the X-rays that have crossed an object to be radiographed. The said photocarriers move in the electrical field created by the electret and tend to cancel the electrical field at the interface between the two layers. During a reading stage, the change-over switch connects the electrodes to the inputs of a current amplifer while a light beam scans the layer of photoconductive material. The photocarriers move and completely cancel the electrical field at every point of the interface between the two layers. The current detected by the amplifier makes it possible to display an image on a cathode ray tube. During an initialization stage, the layer of photoconductive material is brought to the neutral state by means of a direct voltage generator connected to the electrodes by the change-over switch.
摘要翻译： 静电图像传感器的一个实施例基本上包括两层电极，一层光电导材料和一层介电层，其中包括驻极体，该驻极体被设计成使光电导层极化，而在记录图像期间不需要电压源。 在记录阶段，切换开关短路电极。 照片载体被X射线释放，X射线已经穿过要被放射照相的物体。 所述光载流子在由驻极体产生的电场中移动，并且倾向于消除两层之间的界面处的电场。 在读取阶段，转换开关将电极连接到电流放大器的输入端，同时光束扫描光电导材料层。 光载体在两层之间的界面的每个点移动并完全消除电场。 由放大器检测的电流使得可以在阴极射线管上显示图像。 在初始化阶段期间，光电导材料层通过转换开关连接到电极的直流电压发生器进入中立状态。
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公开(公告)号：US4554453A
公开(公告)日：1985-11-19
申请号：US594090
申请日：1984-03-28
申请人： Ingmar Feigt , Hans Heinrich , Karl Kempter
发明人： Ingmar Feigt , Hans Heinrich , Karl Kempter
CPC分类号： H01L31/141 , G01T1/2018 , G01T1/246
摘要： The invention relates to an apparatus for the taking of X-ray pictures, where there are between two radiation-transmitting electrodes two solid substance layers whose free sides lie in a charge storage layer. The first electrode is a photo-conducting layer which is impinged upon by image rays, while the second electrode is a photo-conducting layer which is impinged upon by an optical ray moved in a scanning raster, so that a reproducible signal is obtained. According to the invention, the time required per image is reduced and increased quantum yield is achieved at increased signal-to-noise ratio and greater dynamic range. There is correlated to the first photo-conducting layer a luminophor which transforms the image rays into light which is preferentially absorbed in this layer. An apparatus according to the invention is usable in particular in medical radio-diagnostics.
摘要翻译： 本发明涉及一种用于摄取X射线照片的设备，其中两个辐射透射电极之间有两个固体物质层，其自由侧位于电荷存储层中。 第一电极是通过图像射线照射的光导层，而第二电极是通过在扫描光栅中移动的光线照射的光导层，从而获得可再现的信号。 根据本发明，减少了每个图像所需的时间，并且在增加的信噪比和更大的动态范围内实现了增加的量子产量。 与第一光导层相关联的是将图像光线变换成优先吸收在该层中的光的发光体。 根据本发明的装置特别可用于医疗无线电诊断。
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公开(公告)号：US20230258831A1
公开(公告)日：2023-08-17
申请号：US18309010
申请日：2023-04-28
发明人： Peiyan CAO , Yurun Liu
IPC分类号： G01T1/24
摘要： An apparatus for detecting X-ray, comprising an X-ray absorption layer comprising an electrode, an electronics layer and a wall sealing a space among electrical connections between the X-ray absorption layer and the electronics layer. The electronics layer comprises: a first and second voltage comparators configured to compare a voltage of an electrode to a first and second thresholds respectively; a counter configured to register a number of X-ray photons absorbed by the X-ray absorption layer; and a controller configured to: start a time delay from a time at which an absolute value of the voltage equals or exceeds an absolute value of the first threshold; activate the second voltage comparator during the time delay; cause the number registered by the counter to increase by one, if, during the time delay, an absolute value of the voltage equals or exceeds an absolute value of the second threshold.
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公开(公告)号：US20160313456A1
公开(公告)日：2016-10-27
申请号：US15172584
申请日：2016-06-03
发明人： David Prendergast , Michael Anderson , Paul Downes , William Croydon , Christopher Boyce , Wayne Cranwell , Trevor McAlister , Zhuo Zhhang
摘要： An apparatus for spatially correcting an image frame is disclosed. In some embodiments, the apparatus stores a frame of pixel values and scans a multi-pixel correction window across the frame. Spatial correction is performed on pixels within the window at correction positions during the scan. The spatial correction comprises estimating pixel values at value estimation positions based on one or more pixel values within the window for pixels satisfying a logical condition. The value estimation positions correspond to pixel values which do not fall within the window again during the scan. Further disclosed is an apparatus for detecting high-energy radiation, in which integration circuitry is used for integrating charge responsive to radiation photon interaction events. The circuits are controllable in accordance with an exposure control signal to vary an exposure window duration according to an operating parameter of the apparatus.
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