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    • 1. 发明授权
    • Hybrid x-ray detector
    • 混合x射线探测器
    • US07105828B2
    • 2006-09-12
    • US10708127
    • 2004-02-10
    • Christopher D. UngerBrian David Yanoff
    • Christopher D. UngerBrian David Yanoff
    • G01T1/24
    • G01T1/2018H04N5/32
    • A hybrid x-ray detector includes: a first detector that is adapted to receive x-rays, the first detector absorbs a first portion of the x-rays and allows a second portion of the x-rays to pass through the first detector; and a second detector that is adapted to receive the second portion of the x-rays. A radiation imaging system includes: an x-ray source that produces x-rays; and an image detector assembly that is adapted to receive the x-rays, the image detector assembly having a hybrid x-ray detector that includes: a first detector that is adapted to receive the x-rays, the first detector absorbs a first portion of the x-rays and allows a second portion of the x-rays to pass through the first detector; a second detector that is adapted to receive the second portion of the x-rays; and an x-ray source. A method of operating a hybrid x-ray detector, the method includes: receiving x-rays at a first detector; absorbing a first portion of the x-rays; passing a second portion of the x-rays through the first detector; and receiving the second portion of the x-rays at a second detector.
    • 混合X射线检测器包括:适于接收x射线的第一检测器,第一检测器吸收X射线的第一部分并允许X射线的第二部分通过第一检测器; 以及适于接收x射线的第二部分的第二检测器。 辐射成像系统包括:产生X射线的x射线源; 以及适于接收所述X射线的图像检测器组件,所述图像检测器组件具有混合x射线检测器,所述混合X射线检测器包括:适于接收所述x射线的第一检测器,所述第一检测器吸收所述X射线的第一部分 X射线并且允许X射线的第二部分穿过第一检测器; 适于接收x射线的第二部分的第二检测器; 和x射线源。 一种操作混合x射线检测器的方法,所述方法包括:在第一检测器处接收X射线; 吸收x射线的第一部分; 使X射线的第二部分通过第一检测器; 以及在第二检测器处接收x射线的第二部分。
    • 4. 发明授权
    • Particle-in-binder X-ray sensitive coating using polyimide binder
    • 使用聚酰亚胺粘合剂的粒子粘合剂X射线敏感涂层
    • US07507512B2
    • 2009-03-24
    • US11288554
    • 2005-11-29
    • Brian David YanoffZhaoping WuKun TaoYunfeng SunJun XiaoLiping ZhengWenqing PengJing Li
    • Brian David YanoffZhaoping WuKun TaoYunfeng SunJun XiaoLiping ZhengWenqing PengJing Li
    • G03G5/00C09K11/00
    • G01T1/24
    • An X-ray sensitive coating (22) for a flat panel direct conversion X-ray detector for medical or industrial imaging. A composite particle-in-binder (PIB) material (22) may contain X-ray photoconductive particles (23) such as PbO (lead monoxide) in a binder of polyimide (23). This PIB material may be prepared in precursor paste form, and applied as a coating (22) onto a thin film transistor array (26) having a storage capacitor (31) at each pixel (30). The coating (22) is cured, and an electrically conducting layer (34) is applied to the exposed surface of the coating (22), to provide a bias voltage. X-ray photons striking the photoconductive particles (23) cause localized electrical conduction proportional to the number of photons. This charges respective capacitors (31) that provide image data input to a computer.
    • 用于医疗或工业成像的平板直接转换X射线检测器的X射线敏感涂层(22)。 复合粒子 - 粘合剂(PIB)材料(22)可以在聚酰亚胺(23)的粘合剂中含有X射线光电导颗粒(例如PbO(一氧化铅))。 该PIB材料可以以前体浆料形式制备,并作为涂层(22)施加到在每个像素(30)处具有存储电容器(31)的薄膜晶体管阵列(26)上。 固化涂层(22),并且将导电层(34)施加到涂层(22)的暴露表面,以提供偏置电压。 撞击光导电颗粒(23)的X射线光子引起与光子数成比例的局部电传导。 这样,向计算机提供输入图像数据的各个电容器(31)。
    • 9. 发明授权
    • Method and apparatus for selectively attenuating a radiation source
    • 用于选择性地衰减辐射源的方法和装置
    • US06920203B2
    • 2005-07-19
    • US10308704
    • 2002-12-02
    • Jonathan ShortJohn Eric TkaczykBrian David YanoffLoucas Tsakalakos
    • Jonathan ShortJohn Eric TkaczykBrian David YanoffLoucas Tsakalakos
    • G21K1/04G21K1/02
    • G21K1/04
    • A technique for selectively attenuating a radiation exposure in which a configurable collimator is employed between the radiation source and the radiation target. The configurable collimator typically comprises an array of independently addressable elements each of which has at least a high and a low attenuation state, though intermediate states may also be accommodated. The elements of the array may be selectively addressed to determine their state and to determine the attenuation profile of the collimator. One embodiment of the technique employs an array of microactuated attenuating louvers which may be selectively actuated to determine their radiation transmittance. A second embodiment of the technique employs a suspension of attenuating nematic colloids which may be ordered by the application of an electric or magnetic field. The ordered state of the nematic colloids within an element determine the radiation transmittance of that element. A third embodiment of the technique employs microfluidics to fill an array of fluid chambers with an attenuating fluid. The level of filling within each chamber determines the attenuation produced by that array element.
    • 一种用于选择性地衰减辐射照射的技术,其中在辐射源和辐射目标之间采用可配置的准直仪。 可配置的准直器通常包括独立可寻址元件的阵列,每个元件具有至少高的和低的衰减状态,尽管也可以容纳中间状态。 可以选择性地寻址阵列的元件以确定其状态并确定准直仪的衰减曲线。 该技术的一个实施例采用可被选择性地致动以确定其辐射透射率的微致动衰减百叶窗阵列。 该技术的第二个实施方案采用可通过施加电场或磁场来排序的衰减向列胶体的悬浮液。 元素内的向列胶体的有序状态决定了该元件的辐射透射率。 该技术的第三实施例采用微流体填充具有衰减流体的流体室阵列。 每个室内的填充水平决定了该阵列元件产生的衰减。