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    Measuring arrangement for x-ray radiation having reduced parallax effects
    7.
    发明授权
    Measuring arrangement for x-ray radiation having reduced parallax effects 有权

    公开(公告)号：US11788975B2

    公开(公告)日：2023-10-17

    申请号：US17622738

    申请日：2020-06-17

    申请人： Bruker AXS GmbH

    发明人： Jürgen Fink ,  Christian Maurer ,  Lutz Brügemann ,  Cristian Venanzi

    IPC分类号： G01N23/207

    CPC分类号： G01N23/207 ,  G01N2223/056

    摘要： A measuring arrangement (20) for x-ray radiation, comprising—a sample position (3), which can be illuminated by xray radiation (2) and—an x-ray detector (13) for detecting x-ray radiation emitted from the sample position (3), comprising at least one detector module (21-24), wherein the detector module (21-24) has a plurality of sensor elements (14; 14a-14e) arranged successively in a measuring direction (MR), each sensor element having a centroid (18), wherein the sensor elements (14; 14a-14e) are arranged in a common sensor plane (16) of the detector module (21-24), is characterized in that at least a majority of the sensor elements (14; 14a-14e) of the detector module (21-24), preferably all the sensor elements (14; 14a-14e) of the detector module (21-24), are designed as uniformly spaced sensor elements (14; 14a-14e), wherein the centroids (18) of the sensor elements (14; 14a-14e) have an equal distance R0 from the sample position (3). The measuring arrangement according to the invention can be implemented having flat detector modules, in particular semiconductor detector modules, and is less susceptible to measurement errors.

    METHOD AND APPARATUS FOR EXTENDING ANGULAR COVERAGE FOR A SCANNING TWO-DIMENSIONAL X-RAY DETECTOR
    8.
    发明申请
    METHOD AND APPARATUS FOR EXTENDING ANGULAR COVERAGE FOR A SCANNING TWO-DIMENSIONAL X-RAY DETECTOR 审中-公开

    公开(公告)号：US20180292334A1

    公开(公告)日：2018-10-11

    申请号：US15479335

    申请日：2017-04-05

    申请人： Bruker AXS, Inc.

    发明人： Bob Baoping HE

    IPC分类号： G01N23/207

    CPC分类号： G01N23/207 ,  G01N2223/056 ,  G01N2223/1016 ,  G01N2223/33 ,  G01N2223/62

    摘要： A method and apparatus for performing an X-ray diffraction measurement with a diffractometer having an X-ray beam directed at a sample and a two-dimensional X-ray detector includes the performance of a physical scan during which the detector is moved through a scanning range in an angular direction about the sample position. To provide a uniform exposure time, the detector, when located at an extreme of the scanning range, is controlled to progressively change the portion of the detected X-ray energy that is used at a rate that maintains a uniform exposure time for each angular position in the scanning range. Alternatively, when located at an extreme of the range, the detector is kept stationary until a desired minimum exposure time is obtained for each angular position, after which the collected diffraction data is normalized relative to exposure time.

    X-ray diffraction method and portable X-ray diffraction apparatus using same
    10.
    发明授权
    X-ray diffraction method and portable X-ray diffraction apparatus using same 有权
    X射线衍射法和使用其的便携式X射线衍射装置

    公开(公告)号：US09518940B2

    公开(公告)日：2016-12-13

    申请号：US13812556

    申请日：2011-07-28

    申请人： Asao Nakano ,  Yoshinori Ueji

    发明人： Asao Nakano ,  Yoshinori Ueji

    IPC分类号： G01N23/20 ,  G01N23/207

    CPC分类号： G01N23/20 ,  G01N23/20008 ,  G01N23/207 ,  G01N2223/056 ,  G01N2223/301 ,  G01N2223/33

    摘要： A portable X-ray diffraction apparatus is provided which can be held by a person and on which an image of a spot to be measured can be viewed. The portable X-ray diffraction apparatus includes: X-ray irradiation means that irradiates a sample with collimated X-rays; diffracted X-ray detection means that detects a collimated portion of diffracted X-rays among X-rays diffracted from the sample by the irradiation of the X-rays with the X-ray irradiation means; and signal processing means that processes a signal outputted from the diffracted X-ray detection means. An X-ray diffraction method is used which includes: irradiating a sample with collimated continuous-wavelength X-rays; extracting a collimated portion of diffracted X-rays diffracted from the sample irradiated with the X-rays and condensing the extracted collimated portion of the diffracted X-rays; detecting, using an energy dispersive detection element, the condensed diffracted X-rays; and processing a signal detected by the detection element.

    摘要翻译： 提供了一种便携式X射线衍射装置，其可以由人保持，并且可以在其上观察要测量的点的图像。 便携式X射线衍射装置包括：X射线照射装置，其用准直X射线照射样品; 衍射X射线检测装置，其通过用X射线照射装置照射X射线来检测从样品衍射的X射线中的衍射X射线的准直部分; 以及处理从衍射X射线检测装置输出的信号的信号处理装置。 使用X射线衍射法，其包括：用准直的连续波长X射线照射样品; 提取从X射线照射的样本衍射的衍射X射线的准直部分，并将衍射的X射线的提取的准直部分聚焦; 使用能量色散检测元件检测冷凝的衍射X射线; 以及处理由所述检测元件检测到的信号。