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1.发明授权Apparatus for phase-contrast imaging comprising a displaceable X-ray detector element and method 有权包括可移位的X射线检测器元件和方法的用于相位对比成像的装置公开(公告)号：US09066649B2
公开(公告)日：2015-06-30
申请号：US13514383
申请日：2010-12-03
申请人： Ewald Roessl , Klaus Juergen Engel , Gereon Vogtmeier , Dieter Geller , Gerhard Martens , Sebastian Siegmund Schusser , Thomas Koehler
发明人： Ewald Roessl , Klaus Juergen Engel , Gereon Vogtmeier , Dieter Geller , Gerhard Martens , Sebastian Siegmund Schusser , Thomas Koehler
CPC分类号： A61B6/00 , A61B6/032 , A61B6/4021 , A61B6/4092 , A61B6/4291 , A61B6/484
摘要： An X-ray image acquisition apparatus employing phase-contrast imaging with enlarged field of view includes an X-ray source, an X-ray detector element having a detector size, a beam splitter grating and an analyzer grating. An object is arrangeable between the X-ray source and detector. The beam splitter grating and the analyzer grating are arrangeable between the X-ray source and detector. The X-ray source, the beam splitter grating, the analyzer grating and the X-ray detector are operatively coupled such that a phase-contrast image of the object is obtainable. The apparatus is configure to acquire a phase-contrast image having a field of view larger than the detector size. The X-ray detector element is displaceable where, by the displacement of the X-ray detector, a phase-contrast image of the enlarged field of view is obtainable.
摘要翻译： 采用具有放大视场的相位对比成像的X射线图像获取装置包括X射线源，具有检测器尺寸的X射线检测器元件，分束器光栅和分析器光栅。 X射线源和检测器之间可以配置一个物体。 分束器光栅和分析器光栅可以在X射线源和检测器之间布置。 X射线源，分束器光栅，分析器光栅和X射线检测器可操作地耦合，使得可以获得物体的相差图像。 该装置被配置为获取具有大于检测器尺寸的视场的相位对比度图像。 X射线检测器元件可移动，其中通过X射线检测器的位移可以获得放大视场的相位对比图像。
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2.发明申请APPARATUS FOR PHASE-CONTRAST IMAGING COMPRISING A DISPLACEABLE X-RAY DETECTOR ELEMENT AND METHOD 有权包含可移位X射线探测器元件和方法的相位对比成像装置公开(公告)号：US20120307966A1
公开(公告)日：2012-12-06
申请号：US13514383
申请日：2010-12-03
申请人： Ewald Roessl , Klaus Juergen Engel , Gereon Vogtmeier , Dieter Geller , Gerhard Martens , Sabastian Siegmund Schusser , Thomas Koehler
发明人： Ewald Roessl , Klaus Juergen Engel , Gereon Vogtmeier , Dieter Geller , Gerhard Martens , Sabastian Siegmund Schusser , Thomas Koehler
IPC分类号： G01N23/04
CPC分类号： A61B6/00 , A61B6/032 , A61B6/4021 , A61B6/4092 , A61B6/4291 , A61B6/484
摘要： The present invention relates to X-ray image acquisition technology in general. Employing phase-contrast imaging for X-ray image acquisition may significantly enhance the quality and information content of images acquired. However, phase-contrast information may only be obtainable in a small detector region, possibly being too small for a sufficient field of rotation view for specialized X-ray imaging applications. Accordingly, an apparatus for phase-contrast imaging is provided that may allow the acquisition of an enlarged field of view. According to the present invention an apparatus (1) for phase-contrast imaging is provided, comprising an X-ray source (2), an X-ray detector (12) element having a detector size, a beam splitter grating (8) and an analyzer grating (10). An object (6) is arrangeable between the X-ray source (2) and the X-ray detector (12). The beam splitter grating (8) and the analyzer grating (10) are arrangeable between the X-ray source (2) and the X-ray detector (12). X-ray source (2), the beam splitter grating (8), the analyzer grating (10) and the X-ray detector (12) are operatively coupled such that a phase-contrast image of the object (6) is obtainable. The apparatus (1) is adapted for acquiring a phase-contrast image having a field of view larger than the detector size. The X-ray detector element (12) is displaceable and by the displacement of the X-ray detector (12) a phase-contrast image of the field of view is obtainable.
摘要翻译： 本发明一般涉及X射线图像获取技术。 采用X射线图像获取的相位对比成像可显着提高获取图像的质量和信息内容。 然而，相位对比度信息只能在小的检测器区域中获得，对于专门的X射线成像应用，可能对于足够的旋转视场来说太小。 因此，提供了一种用于相位对比成像的装置，其可以允许获取放大的视场。 根据本发明，提供了一种用于相位对比成像的装置（1），包括具有检测器尺寸的X射线源（2），X射线检测器（12）元件，分束器光栅（8）和 分析器光栅（10）。 物体（6）可布置在X射线源（2）和X射线检测器（12）之间。 分束器光栅（8）和分析器光栅（10）可布置在X射线源（2）和X射线检测器（12）之间。 X射线源（2），分束器光栅（8），分析器光栅（10）和X射线检测器（12）可操作地耦合，使得可以获得物体（6）的相位对比度图像。 装置（1）适于获取具有大于检测器尺寸的视场的相位对比度图像。 X射线检测器元件（12）可移动，并且通过X射线检测器（12）的移位，可以获得视场的相位对比图像。
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公开(公告)号：US20120008747A1
公开(公告)日：2012-01-12
申请号：US13260380
申请日：2010-03-15
申请人： Ewald Roessl , Thomas Koehler , Gerhard Martens
发明人： Ewald Roessl , Thomas Koehler , Gerhard Martens
IPC分类号： G01N23/201 , G01N23/04
CPC分类号： G21K7/00 , A61B6/4291 , A61B6/484 , A61B6/502
摘要： The invention relates to an X-ray differential phase-contrast imaging system which has three circular gratings. The circular gratings are aligned with the optical axis of the radiation beam and a phase stepping is performed along the optical axis with the focal spot, the phase grating and/or the absorber grating. The signal measured is the phase-gradient in radial direction away from the optical axis.
摘要翻译： 本发明涉及一种具有三个圆形光栅的X射线差分相位对比成像系统。 圆形光栅与辐射束的光轴对准，并且沿着光轴与焦斑，相位光栅和/或吸收光栅一起执行相位步进。 测量的信号是远离光轴的径向相位梯度。
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公开(公告)号：US09269471B2
公开(公告)日：2016-02-23
申请号：US13260380
申请日：2010-03-15
申请人： Ewald Roessl , Thomas Koehler , Gerhard Martens
发明人： Ewald Roessl , Thomas Koehler , Gerhard Martens
CPC分类号： G21K7/00 , A61B6/4291 , A61B6/484 , A61B6/502
摘要： An X-ray differential phase-contrast imaging system has three circular gratings. The circular gratings are aligned with the optical axis of the radiation beam and a phase stepping is performed along the optical axis with the focal spot, the phase grating and/or the absorber grating. The signal measured is the phase-gradient in radial direction away from the optical axis.
摘要翻译： X射线差分相位成像系统具有三个圆形光栅。 圆形光栅与辐射束的光轴对准，并且沿着光轴与焦斑，相位光栅和/或吸收光栅一起执行相位步进。 测量的信号是远离光轴的径向相位梯度。
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5.发明申请METHOD AND DEVICE FOR ANALYSING A REGION OF INTEREST IN AN OBJECT USING X-RAYS 有权用于分析使用X-RAYS的对象中的兴趣区域的方法和装置公开(公告)号：US20130236079A1
公开(公告)日：2013-09-12
申请号：US13989507
申请日：2011-12-05
IPC分类号： G06T7/00
CPC分类号： G06T7/0012 , G01N23/046 , G01N2223/419
摘要： A method and a device for analyzing a region of interest in an object is proposed. The method comprises: (a) providing measurement data by a differential phase contrast X-ray imaging system, and (b) analyzing characteristics of the object in the region of interest. Therein, the measurement data comprise a 2-dimensional or 3-dimensional set of pixels wherein for each pixel the measurement data comprises three types of image data spatially aligned with each other, including (i) absorption representing image data A, (ii) differential phase contrast representing image data D, and (iii) coherence representing image data C. The analyzing step is based, for each pixel, on a combination of at least two of information comprised in the absorption representing image data A and information comprised in the differential phase contrast representing image data D and information comprised in the coherence representing image data C.
摘要翻译： 提出了一种用于分析对象中的感兴趣区域的方法和装置。 该方法包括：（a）通过差分相位X射线成像系统提供测量数据，以及（b）分析感兴趣区域中物体的特征。 其中，测量数据包括2维或3维像素集合，其中对于每个像素，测量数据包括彼此空间对准的三种类型的图像数据，包括（i）表示图像数据A的吸收，（ii）差分 表示图像数据D的相位对比度和（iii）表示图像数据C的相干性。分析步骤基于每个像素，包括在表示图像数据A的吸收中包括的信息中的至少两个信息和差分中包含的信息 表示图像数据D的相位对比度和表示图像数据C的相干性中包含的信息。
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公开(公告)号：US09767550B2
公开(公告)日：2017-09-19
申请号：US13989507
申请日：2011-12-05
CPC分类号： G06T7/0012 , G01N23/046 , G01N2223/419
摘要： A method and a device for analyzing a region of interest in an object is proposed. The method comprises: (a) providing measurement data by a differential phase contrast X-ray imaging system, and (b) analyzing characteristics of the object in the region of interest. Therein, the measurement data comprise a 2-dimensional or 3-dimensional set of pixels wherein for each pixel the measurement data comprises three types of image data spatially aligned with each other, including (i) absorption representing image data A, (ii) differential phase contrast representing image data D, and (iii) coherence representing image data C. The analyzing step is based, for each pixel, on a combination of at least two of information comprised in the absorption representing image data A and information comprised in the differential phase contrast representing image data D and information comprised in the coherence representing image data C.
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7.发明申请Method and imaging system for imaging the spatial distrubution of an x-ray fluorescence marker 失效用于对X射线荧光标记的空间分布进行成像的方法和成像系统公开(公告)号：US20060182217A1
公开(公告)日：2006-08-17
申请号：US10547588
申请日：2004-03-02
IPC分类号： G01N23/223 , G01T1/36
CPC分类号： A61B6/485 , A61B6/00 , A61B6/4092 , G01N23/223 , G01N2223/076
摘要： The invention describes a method of generating metabolic images of an investigation region (3) of a body (1) by irradiating an X-ray fluorescence marker in that region and detecting the resulting X-ray fluorescence with a fluorescence detector (30). A fan beam (12) is used as a source of primary X-radiation, thus allowing the scanning of a whole body slice (3) in one step. The fluorescence image may be directly measured, e.g. by mapping voxels (104) of the investigation region onto pixels (134) of the detector (130) with the help of a pinhole collimator (132), or it may be reconstructed by procedures of computed tomography. Moreover, a morphological image may be generated by simultaneously recording X-ray transmission through the body (1).
摘要翻译： 本发明描述了通过在该区域中照射X射线荧光标记物并用荧光检测器（30）检测所得X射线荧光来产生身体（1）的调查区域（3）的代谢图像的方法。 扇形光束（12）被用作初级X辐射源，从而允许在一个步骤中扫描全身切片（3）。 可以直接测量荧光图像，例如。 通过借助于针孔准直器（132）将调查区域的体素（104）映射到检测器（130）的像素（134）上，或者可以通过计算机断层摄影的程序来重构。 此外，可以通过同时记录穿过身体（1）的X射线透射来产生形态学图像。
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公开(公告)号：US06301327B1
公开(公告)日：2001-10-09
申请号：US09388711
申请日：1999-09-02
IPC分类号： G01N2304
CPC分类号： G01V5/0016
摘要： A method and an apparatus for examining luggage by X-ray scanning, wherein the pieces of luggage to be examined are moved on a conveyor belt into a scanner which contains the X-ray components, i.e., an X-ray unit and a detector unit. The scanner together with the X-ray unit and the detector unit is moved over the piece of luggage which stands still. After each scanning process, the piece of luggage is moved on the conveyor belt in a timed manner and the step of scanning the piece of luggage is repeated.
摘要翻译： 一种用于通过X射线扫描检查行李的方法和装置，其中待检查的行李在传送带上移动到包含X射线成分的扫描仪中，即X射线单元和检测器单元 。 扫描仪与X射线单元和检测器单元一起移动到静止的行李上。 在每次扫描处理之后，行李箱以定时的方式在传送带上移动，重复扫描行李的步骤。
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9.发明授权Method of stress-optical force measurement and measurement device for performing the method 失效用于执行该方法的应力光学测量方法和测量装置
公开(公告)号：US5028130A
公开(公告)日：1991-07-02
申请号：US407519
申请日：1989-09-15
摘要： A method of stress-optical force measurement where a linearly polarized light ray is guided into a stress-optical measurement array consisting of several measurement members on which the force to be measured acts in a distributed manner. The light ray successively traverses the measurement members while being influenced in a force-dependent manner and is applied to a subsequent evaluation unit for evaluation. The invention also relates to a measurement device for performing the method, comprising a measurement array and an evaluation unit between two plates which are arranged in parallel at a distance from one another. The measurement array consists of at least three spaced stress-optical measurement members which keep the plates at a distance from one another, influence the light ray in a force-dependent manner, and guide the light ray into the evaluation unit arranged between two measurement members.
摘要翻译： 一种应力 - 光度测量方法，其中线性偏振光线被引导到由几个测量构件组成的应力光学测量阵列中，待测量的作用力以分布方式作用。 光线在受力影响的同时依次穿过测量构件，并被应用于随后的评估单元进行评估。 本发明还涉及一种用于执行该方法的测量装置，包括测量阵列和两个板之间的距离彼此平行地布置的评估单元。 测量阵列由至少三个间隔的应力 - 光学测量构件组成，其保持板彼此间隔一定距离，以依赖于力的方式影响光线，并将光线引导到布置在两个测量构件之间的评估单元 。
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公开(公告)号：US5004912A
公开(公告)日：1991-04-02
申请号：US410695
申请日：1989-09-21
申请人： Gerhard Martens , Jurgen Kordts , Georg Weidinger
发明人： Gerhard Martens , Jurgen Kordts , Georg Weidinger
CPC分类号： G01D5/35351 , G01D5/268
摘要： The invention relates to a fiber-optical sensor, comprising a light transmitter device (6) which couples transmitted light into at least one first ligthwave conductor (3,4) and also comprising a light receiver device (7) which receives light from the first lightwave conductor and at least one second lightwave conductor (4,3). The lightwave conductors (3,4) comprise adjacently situated portions (1) which can contact one another in a light-transferring manner at given areas and which are accommodated together in an envelope (5) at this area, a force or a pressure being applied to the lightwave conductor via said envelope. The light transmitter device (6) also couples a first transmitted light into the first lightwave conductor (3,4) and a second transmitted light into the second lightwave conductor (4,3).
摘要翻译： 本发明涉及一种光纤传感器，其包括光发射器装置（6），其将透射光耦合到至少一个第一导波（3,4）中，并且还包括光接收装置（7），该光接收装置从第一 光波导体和至少一个第二光波导体（4,3）。 光波导体（3,4）包括相邻定位的部分（1），其可以在给定区域处以光传递方式彼此接触并且一起容纳在该区域的封套（5）中，力或压力 通过所述信封施加到光波导。 光发射器装置（6）还将第一透射光耦合到第一光波导（3,4）中，并将第二透射光耦合到第二光波导（4,3）中。
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