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1.发明授权公开(公告)号：US10794845B2
公开(公告)日：2020-10-06
申请号：US16216384
申请日：2018-12-11
申请人： Bruker AXS GmbH
发明人： Frank Filsinger , Uwe Metka
IPC分类号： G01N23/20091 , G21K1/02 , G01N23/207 , G01N23/223
摘要： X-ray spectrometer comprising an X-ray source emitting X-ray radiation onto a sample, a collimator arrangement for collimating X-ray radiation that has passed through a diaphragm arrangement, the collimator arrangement comprising a modified Soller slit with mutually parallel lamellae forming a plurality of slit-shaped passages, at least a portion of the slit-shaped passages having partition walls aligned substantially perpendicularly to the slit-shaped passages, the partition walls being non-transmissive to X-ray radiation and restricting the transverse divergence of the X-ray radiation passing through the collimator arrangement in a direction transversely with respect to the diffraction plane of the X-ray radiation coming from the sample. Significantly faster spatially resolved measurements can thus be carried out.
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公开(公告)号：US10094790B2
公开(公告)日：2018-10-09
申请号：US15617154
申请日：2017-06-08
申请人： Bruker AXS GmbH
IPC分类号： G01N23/20 , G01N23/207 , G01N23/20016 , G01N23/223 , G01N23/2209
摘要： A measurement chamber of an x-ray spectrometer for analyzing x-ray fluorescence radiation from a measuring sample has an entrance opening for the entry of x-ray fluorescence radiation into the measurement chamber, a first goniometer arm for holding and adjusting an analyzer crystal, and a second goniometer arm for holding and adjusting an x-ray detector. The measurement chamber and entrance opening are sealed in a vacuum-tight manner by way of a window. The chamber contains a bearing block for receiving and holding both goniometer arms in a concentric and rotatable manner, the arms each being mechanically adjustable by means of a piezo-motor, which is securely connected to the bearing block or a drive plate of the respective goniometer arm. The measurement chamber contains all mechanical components of the goniometer and allows for a more compact, lighter and more stable x-ray spectrometer with a rotatable goniometer and little heat influx into the system.
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公开(公告)号：US11742104B2
公开(公告)日：2023-08-29
申请号：US17667822
申请日：2022-02-09
申请人： Bruker AXS GmbH
摘要： A collimator assembly for an x-ray optical system having a Soller slit for collimation of x-ray radiation with respect to a direction of an axis (z) of the Soller slit, wherein the Soller slit has a plurality of lamellae spaced apart from one another and having lamella planes parallel to one another, is characterized in that the Soller slit comprises a plurality of segments which are arranged along the axis and are separated from one another. The arrangement also has a collimator frame for enclosing and guiding the plurality of segments, and at least one of the plurality of segments is displaceable with respect to the collimator frame and relative to other segments. A simple but nonetheless accurate adjustment of the spectral resolution of an x-ray spectrometer to a respective different analytical application is thus enabled in a compact and cost-effective manner.
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