TIERED DETECTOR ASSEMBLY
    3.
    发明公开
    TIERED DETECTOR ASSEMBLY 有权
    GESTUFTE DETEKTORANORDNUNG

    公开(公告)号:EP1119290A4

    公开(公告)日:2001-12-19

    申请号:EP99953007

    申请日:1999-09-30

    CPC分类号: G01T1/243 H01L27/14676

    摘要: An x-ray detector (60), useful in x-ray imaging systems comprising a plurality of detector elements (608) comprising a plurality of detector sub-elements (612). A plurality of X-ray detectors (608) are arranged in a multi-dimensional array (604), each array of detectors tiered (310) with respect to the next array of detectors. A compact electronics circuitry (800) is contained in each of the plurality of detector sub-elements (608). The compact electronics circuitry comprises a photon sensor (804), an amplifier (808), a discriminator (812) and an analog-to-digital converter (824). Finally, a method for generating X-ray transmissiveness information is also provided.

    摘要翻译: 一种用于X射线成像系统的X射线探测器(60),所述X射线成像系统包括多个包括多个探测器子元件(612)的探测器元件(608)。 多个X射线探测器(608)布置在多维阵列(604)中,每个探测器阵列相对于下一个探测器阵列分层(310)。 紧凑的电子电路(800)包含在多个检测器子元件(608)中的每一个中。 紧凑型电子电路包括光子传感器(804),放大器(808),鉴别器(812)和模数转换器(824)。 最后,还提供了用于生成X射线透射性信息的方法。

    X-RAY DETECTOR FOR A LOW DOSAGE SCANNING BEAM DIGITAL X-RAY IMAGING SYSTEM
    4.
    发明公开
    X-RAY DETECTOR FOR A LOW DOSAGE SCANNING BEAM DIGITAL X-RAY IMAGING SYSTEM 失效
    香港特别行政区政府财政司司长芬兰数码公司,NIEDERDOSEN-RASTER-ROENTGENBILDWANDLER

    公开(公告)号:EP0693225A4

    公开(公告)日:1999-06-23

    申请号:EP94927433

    申请日:1994-04-05

    摘要: A scanning beam digital x-ray imaging system according to the present invention includes an x-ray tube (10) having an electron beam source (161) and a target anode (50). Circuitry is provided for focussing the beam (164) and scanning the beam (20, 30) across the target anode (50) in a predetermined pattern such as a serpentine scan pattern. A collimating element (90), preferably in the form of a perforated grid containing an array of apertures (140), is interposed between the x-ray source (50) and an object to be x-rayed (80). The apertures (140) are oriented to form x-ray beams (100) converging at a detector array (110) on a plane (270) located a selected distance from the collimating element (90). That distance is selected to allow placing the object to be x-rayed (80) in between the collimating element (90) and the detector array (110). A segmented x-ray detector array (110) containing a rectangular matrix of detector elements (170) is located in the detection plane (270). A focal plane (280) is created which gives optimal resolution at a particular, selectable distance from the x-ray source (50).

    摘要翻译: 根据本发明的扫描光束数字X射线成像系统包括具有电子束源(161)和目标阳极(50)的X射线管(10)。 提供电路用于聚焦光束(164)并且以预定图案(例如蛇形扫描图案)跨过目标阳极(50)扫描光束(20,30)。 优选以包含孔阵列(140)的穿孔网格的形式的准直元件(90)插入在x射线源(50)和要被x射线的物体(80)之间。 孔(140)被定向以形成在位于距准直元件(90)选定距离的平面(270)处会聚在检测器阵列(110)处的X射线束(100)。 选择该距离以允许将待X射线的物体(80)放置在准直元件(90)和检测器阵列(110)之间。 包含检测器元件(170)的矩形矩阵的分段x射线检测器阵列(110)位于检测平面(270)中。 创建焦平面(280),其在距离x射线源(50)的特定可选距离处提供最佳分辨率。