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21. 发明申请

US20070189449A1 Method and measuring arrangement for nondestructive analysis of an examination object by means of x-radiation 有权
标题翻译：通过x射线对检查对象进行非破坏性分析的方法和测量装置
公开(公告)号：US20070189449A1
公开(公告)日：2007-08-16
申请号：US11700061
申请日：2007-01-31
申请人： Joachim Baumann , Martin Engelhardt , Jorg Freudenberger , Eckhard Hempel , Martin Hoheisel , Thomas Mertelmeier , Stefan Popescu , Manfred Schuster
发明人： Joachim Baumann , Martin Engelhardt , Jorg Freudenberger , Eckhard Hempel , Martin Hoheisel , Thomas Mertelmeier , Stefan Popescu , Manfred Schuster
IPC分类号： G01N23/223 , G01T1/36
CPC分类号： G01N23/20 , A61B6/4021 , A61B6/4092 , A61B6/482 , A61B6/484 , G01N23/22 , G21K2207/005
摘要： A method and a measuring arrangement are disclosed for nondestructive analysis of an examination object. In at least one embodiment of the method, x-radiation having a specific energy spectrum is generated by an x-ray source, with the aid of at least one x-ray/optical grating in the beam path of the x-radiation there is generated a standing wave field of this x-radiation that is positioned at least partially in the examination object, and the radiation excited by the x-ray standing wave field in the examination object is measured as a function of at least one relative position between the examination object and the x-ray standing wave field. Further, a material distribution in the examination object is inferred from the measurement result of the radiation excited by the x-ray standing wave field.
摘要翻译：公开了用于检查对象的非破坏性分析的方法和测量装置。在该方法的至少一个实施例中，具有特定能谱的x射线由x射线源产生，借助于X辐射的光束路径中的至少一个x射线/光栅，产生至少部分地位于检查对象中的该X射线的驻波场，并且由检查对象中的x射线驻波场激发的辐射作为至少一个相对位置检查对象和X射线驻波场。此外，从X射线驻波激励的辐射的测量结果推断检查对象中的材料分布。

22. 发明申请

US20070183582A1 Focus-detector arrangement for generating projective or tomographic phase contrast recordings with X-ray optical gratings 有权
标题翻译：用于使用X射线光栅产生投影或断层相位对比记录的焦点检测器布置
公开(公告)号：US20070183582A1
公开(公告)日：2007-08-09
申请号：US11700154
申请日：2007-01-31
申请人： Joachim Baumann , Christian David , Martin Engelhardt , Jorg Freudenberger , Eckhard Hempel , Martin Hoheisel , Thomas Mertelmeier , Franz Pfeiffer , Stefan Popescu , Manfred Schuster
发明人： Joachim Baumann , Christian David , Martin Engelhardt , Jorg Freudenberger , Eckhard Hempel , Martin Hoheisel , Thomas Mertelmeier , Franz Pfeiffer , Stefan Popescu , Manfred Schuster
IPC分类号： G21K1/00
CPC分类号： G01N23/046 , A61B6/4092 , A61B6/4291 , A61B6/484 , G01N2223/419 , G01N2223/612 , G21K1/06 , G21K2207/005
摘要： A focus-detector arrangement of an X-ray apparatus is disclosed for generating projective or tomographic phase contrast recordings with a phase grating. According to at least one embodiment of the invention, in the gaps between its bars, the phase grating includes a filler material whose linear attenuation coefficient in the relevant energy range is greater than that of the bars. The height of the filler material in the gaps is dimensioned on the one hand so that the X-radiation with the energy used for measuring the phase shift generates a phase shift in the X-radiation such that, after the phase grating, the rays which pass through the bars are phase shifted by one half wavelength relative to the rays which pass through the gaps with the filler material. Further, the height of the filler material in the gaps on the other hand is dimensioned so that the attenuation of the X-radiation, at least in relation to the energy used for measuring the phase shift, is the same when passing through the bars and when passing through the filler material.
摘要翻译：公开了一种用于利用相位光栅产生投射或断层相位对比度记录的X射线装置的聚焦检测器装置。根据本发明的至少一个实施例，在其杆之间的间隙中，相位光栅包括其相关能量范围内的线性衰减系数大于棒的线性衰减系数的填充材料。间隙中的填充材料的高度一方面确定尺寸，使得具有用于测量相移的能量的X射线在X辐射中产生相移，使得在相位光栅之后，射线通过条相对于通过填充材料的间隙的光线相移一半波长。此外，另一方面，间隙中的填充材料的高度的尺寸被设计成使得至少相对于用于测量相移的能量的X射线的衰减在通过杆时是相同的，并且当通过填料时。

23. 发明申请

US20070183579A1 X-ray optical transmission grating of a focus-detector arrangement of an X-ray apparatus for generating projective or tomographic phase contrast recordings of a subject 有权
标题翻译：用于产生对象的投影或层析相位对比记录的X射线装置的聚焦检测器装置的X射线光透射光栅
公开(公告)号：US20070183579A1
公开(公告)日：2007-08-09
申请号：US11700139
申请日：2007-01-31
申请人： Joachim Baumann , Christian David , Martin Engelhardt , Jorg Freudenberger , Eckhard Hempel , Martin Hoheisel , Thomas Mertelmeier , Franz Pfeiffer , Stefan Popescu , Manfred Schuster
发明人： Joachim Baumann , Christian David , Martin Engelhardt , Jorg Freudenberger , Eckhard Hempel , Martin Hoheisel , Thomas Mertelmeier , Franz Pfeiffer , Stefan Popescu , Manfred Schuster
IPC分类号： G03F1/00 , G21K1/00
CPC分类号： G21K1/06 , A61B6/4092 , A61B6/4291 , A61B6/484 , G21K2207/005
摘要： An X-ray optical transmission grating of a focus-detector arrangement of an X-ray apparatus is disclosed, for generating projective or tomographic phase contrast recordings of a subject. In at least one embodiment, the grating includes a multiplicity of grating bars and grating gaps arranged periodically on at least one surface of at least one wafer, wherein the X-ray optical transmission grating includes at least two sub-gratings arranged in direct succession in the beam direction.
摘要翻译：公开了一种用于产生被摄体的投影或层析相位对比记录的X射线装置的聚焦检测器装置的X射线光传输光栅。在至少一个实施例中，光栅包括在至少一个晶片的至少一个表面周期性地布置的多个光栅条和光栅间隙，其中X射线光传输光栅包括直接相继布置的至少两个子光栅光束方向。

24. 发明申请

US20070092123A1 Method and device for movement correction when imaging the heart 审中-公开
标题翻译：心脏成像时运动矫正的方法和装置
公开(公告)号：US20070092123A1
公开(公告)日：2007-04-26
申请号：US11581361
申请日：2006-10-17
申请人： Stefan Popescu
发明人： Stefan Popescu
IPC分类号： G06K9/00
CPC分类号： A61B5/04011 , A61B6/032 , A61B6/541
摘要： A method and a device are disclosed for movement correction when imaging the heart. In an embodiment of the method, a number of pictures of at least one region of the heart, that are subsequently combined with one another to generate a combined image data record, are recorded with the aid of an imaging unit in a space of time comprising a number of heart periods. In an embodiment of the method, an additional measuring device is used to acquire, during the recordings, measured data from which it is possible to calculate a variation in a spatial position of the heart between heart periods. The measured data are used to calculate the variation in the spatial position of the heart between the heart periods, in order to reduce errors in the image data record that are caused by the variation. The method, in an embodiment, renders possible combined image data records of the heart with reduced image artifacts.
摘要翻译：公开了一种用于在对心脏进行成像时的运动校正的方法和装置。在该方法的实施例中，借助于成像单元在时间空间中记录随后彼此组合以产生组合图像数据记录的心脏的至少一个区域的多个图像，包括：一些心脏周期。在该方法的一个实施例中，附加测量装置用于在记录期间获取测量数据，从该数据可以计算心脏在心脏周期之间的心脏的空间位置的变化。测量数据用于计算心脏在心脏周期之间的心脏空间位置的变化，以便减少由变化引起的图像数据记录中的误差。在一个实施例中，该方法使心脏的可能的组合图像数据记录具有减少的图像伪影。

25. 发明申请

US20070086571A1 Device for generation of x-ray radiation with a cold electron source 失效
标题翻译：用于产生具有冷电子源的X射线辐射的装置
公开(公告)号：US20070086571A1
公开(公告)日：2007-04-19
申请号：US11529102
申请日：2006-09-28
申请人： Eckhard Hempel , Detlef Mattern , Stefan Popescu
发明人： Eckhard Hempel , Detlef Mattern , Stefan Popescu
IPC分类号： H01J35/00
CPC分类号： H01J35/065 , H01J3/00 , H01J35/14 , H01J35/26 , H01J35/305 , H01J2235/062 , H01J2235/066 , H01J2235/1212 , H01J2235/162 , H01J2235/168
摘要： A device for generation of x-ray radiation has one or more cold electron sources as a cathode and at least one x-ray target as an anode that are arranged in an evacuable housing. Upon application of an electrical voltage between cathode and anode, electrons emitted from the electron source are accelerated in an electron beam onto the x-ray target. A device for reduction of the proportion of positive ions in the region of the electron source is arranged between the electron source and the x-ray target in the housing. The device exhibits a long lifespan with good focusing capability and fast modulation capability of the electron beam.
摘要翻译：用于产生x射线辐射的装置具有一个或多个冷电子源作为阴极，并且至少一个x射线靶作为阳极布置在可抽出的壳体中。在阴极和阳极之间施加电压时，从电子源发射的电子以电子束的速度被加速到x射线靶上。电子源区域中的正离子的比例减少的装置被布置在壳体中的电子源和x射线靶之间。该器件具有长的寿命，具有良好的聚焦能力和电子束的快速调制能力。

26. 发明申请

US20070030947A1 X-ray device with improved efficiency 审中-公开
标题翻译： X射线装置效率提高
公开(公告)号：US20070030947A1
公开(公告)日：2007-02-08
申请号：US10557118
申请日：2004-07-06
申请人： Stefan Popescu
发明人： Stefan Popescu
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： A61B6/032 , A61B6/022 , A61B6/4021 , A61B6/4028
摘要： An x-ray computed tomography apparatus has at least one x-ray source, one or more first x-ray detector elements disposed opposite the x-ray source, with an examination volume disposed therebetween, one or more x-ray deflection elements, and one or more second x-ray detector elements. The ray deflection elements respectively deflect x-rays emitted by said x-ray source in different spatial angular ranges onto the respective x-ray detector elements. The deflected x-rays proceed either through the first region of the examination volume as well, or through different regions of the examination volume. Faster scanning times and reduced artifacts in multi-layer computed tomography scanning are thereby achieved.
摘要翻译： x射线计算机断层摄影装置具有至少一个x射线源，与x射线源相对设置的一个或多个第一x射线检测器元件，其间设置有检查体积，一个或多个x射线偏转元件，以及一个或多个第二x射线检测器元件。射线偏转元件分别将由所述x射线源发射的x射线在不同的空间角度范围内偏转到相应的X射线探测器元件上。偏转的X射线也可以通过检查体积的第一区域，或者通过检查体积的不同区域进行。从而实现了多层计算机断层摄影扫描中更快的扫描时间和减少的伪影。

27. 发明申请

US20060245537A1 System for producing CT image data records and for irradiating a tumor patient 有权
标题翻译：用于产生CT图像数据记录和照射肿瘤患者的系统
公开(公告)号：US20060245537A1
公开(公告)日：2006-11-02
申请号：US11406387
申请日：2006-04-19
申请人： Annemarie Bakai , Dieter Cherek , Joachim Grottel , Stefan Popescu
发明人： Annemarie Bakai , Dieter Cherek , Joachim Grottel , Stefan Popescu
IPC分类号： A61B6/00 , G01N23/00 , G21K1/12 , H05G1/60
CPC分类号： A61B6/06 , A61B6/032 , A61B6/481 , A61N5/10 , A61N2005/1061 , A61N2005/1091 , A61N2005/1098 , G06F19/00
摘要： A system is disclosed for producing CT image data records and for irradiating a patient. The system includes exactly one rotary frame for holding at least one x-ray tube, and one radiation detector that is situated opposite, the x-ray tube being equipped with a diaphragm that can be dynamically adjusted during the rotation of the rotary frame. The system includes a first operating mode for imaging in which during the revolution of the rotary frame the x-ray tube radiate a ray fan of constant fan angle onto the oppositely situated detector, and CT image data records are calculated from the measured data of the detector. It includes a second operating mode for irradiation in which by using at least one imaging x-ray tube used in the first operating mode radiates an x-ray fan that varies with reference to alignment during the rotation of the rotary frame, is narrower perpendicular to the system axis, and remains aligned with the site of at least one tumor in the patient independently of the angular position of the rotary frame.
摘要翻译：公开了一种用于产生CT图像数据记录和照射患者的系统。该系统包括仅一个用于保持至少一个X射线管的旋转框架，以及位于相对的一个辐射检测器，X射线管配备有可在旋转框架旋转期间动态调整的隔膜。该系统包括用于成像的第一操作模式，其中在旋转框架的旋转期间，x射线管将恒定扇角的射线风扇辐射到相对位置的检测器上，并且根据测量数据计算CT图像数据记录探测器。它包括用于照射的第二操作模式，其中通过使用在第一操作模式中使用的至少一个成像x射线管照射相对于在旋转框架旋转期间的对准而变化的X射线风扇，其垂直于系统轴线，并且与患者的至少一个肿瘤部位保持一致，而与旋转框架的角位置无关。

28. 发明申请

US20060159221A1 X-ray computed tomography apparatus for fast image acquisition 失效
标题翻译：用于快速图像采集的X射线计算机断层摄影装置
公开(公告)号：US20060159221A1
公开(公告)日：2006-07-20
申请号：US11312793
申请日：2005-12-20
申请人： Stefan Popescu
发明人： Stefan Popescu
IPC分类号： A61B6/00 , G01N23/00 , G21K1/12 , H05G1/60
CPC分类号： A61B6/4275 , A61B6/032 , A61B6/4028 , G01N23/046 , G01N2223/419 , G01N2223/612
摘要： An x-ray computed tomography apparatus has a stationary device (3) for generating x-ray radiation from an x-ray focus that moves around the examination volume on a target that at least partially surrounds an examination volume of the apparatus in one plane. From the x-ray focus an x-ray beam is directed through the examination volume onto respective, momentarily opposite detector elements of a stationary x-ray detector that at least partially surrounds the examination volume. One or more shaping elements for influencing one or more beam parameters of the x-ray beam are arranged between the target and the detector elements. One or more of the shaping elements is/are arranged on a carrier frame that can rotate around a system axis in synchronization with the movement of the x-ray focus. The shaping elements rotating with the x-ray focus enable an optimal beam shaping and/or suppression of scatter radiation.
摘要翻译： X射线计算机断层摄影装置具有用于从X射线焦点产生X射线辐射的固定装置（3），所述x射线焦点围绕在一个平面中至少部分地围绕所述装置的检查体积的目标上的检查体积移动。从x射线焦点，X射线束被引导通过检查体积到至少部分地围绕检查体积的固定x射线检测器的相应的瞬时相对的检测器元件。用于影响x射线束的一个或多个束参数的一个或多个成形元件被布置在靶和检测器元件之间。一个或多个成形元件被布置在载体框架上，其可以与x射线焦点的运动同步地围绕系统轴线旋转。用x射线焦点旋转的成形元件能够实现最佳的束形成和/或抑制散射辐射。

29. 发明申请

US20050238137A1 Multi-slice computer tomography system with data transfer system with reduced transfer bandwidth 有权
标题翻译：具有降低传输带宽的数据传输系统的多层计算机断层摄影系统
公开(公告)号：US20050238137A1
公开(公告)日：2005-10-27
申请号：US11109324
申请日：2005-04-19
申请人： Stefan Popescu
发明人： Stefan Popescu
IPC分类号： A61B6/00 , A61B6/03 , G01N23/00 , G01N23/06 , G21K1/12 , H04N1/21 , H05G1/60
CPC分类号： A61B6/032
摘要： A computed tomography system has a stationary part and a part that is rotatable around an examination axis that carries at least one x-ray source, a detector unit opposite the x-ray source and a data acquisition unit connected to the detector unit. A data transfer device for transfer of measurement data (acquired with the data acquisition unit) to an image reconstruction device connected with the stationary part is disposed between the stationary part and the rotatable part. The rotatable part has a storage unit for buffering at least a part of the measurement data acquired with the data acquisition unit before their transfer. This storage unit is connected to the data acquisition unit. The computed tomography system enables operation with a high data rate without the data transfer device having to adapt to the maximal data rate.
摘要翻译：计算机断层摄影系统具有静止部分和可围绕检测轴旋转的部分，所述检查轴承载至少一个x射线源，与x射线源相对的检测器单元和连接到检测器单元的数据获取单元。用于将测量数据（由数据获取单元获取）传送到与静止部分连接的图像重建装置的数据传送装置设置在固定部分和可旋转部分之间。可旋转部分具有用于在传送之前缓冲由数据获取单元获取的测量数据的至少一部分的存储单元。该存储单元连接到数据采集单元。计算机断层摄影系统使得能够以高数据速率进行操作，而数据传输设备必须适应最大数据速率。

30. 发明授权

US10182741B2 Device for positioning an examination object, method for creating an image with the aid of an imaging system, and imaging system 有权
公开(公告)号：US10182741B2
公开(公告)日：2019-01-22
申请号：US14607896
申请日：2015-01-28
申请人： Stefan Popescu
发明人： Stefan Popescu
IPC分类号： A61B8/00 , A61B5/055 , A61B5/11 , A61B5/00 , A61B5/113 , G01R33/28 , A61B6/04 , A61B6/00 , A61B6/03 , G01R33/36 , G01R33/48
摘要： The embodiments relate to a device for positioning an examination object when using an imaging system. The device includes a positioning device for the purpose of positioning the examination object for data capture by the imaging system, and at least one sensor fixed to the positioning device. The at least one sensor is configured to capture a movement of the examination object relative to the positioning device. The device is configured to provide the movement to the imaging system.

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