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公开(公告)号：US20110051895A1
公开(公告)日：2011-03-03
申请号：US12990814
申请日：2009-05-04
CPC分类号： H01J35/14 , A61B6/032 , A61B6/4021 , A61B6/4028 , A61B6/4085 , A61B6/4488 , H01J35/26 , H01J35/30
摘要： X-ray systems for use in high-resolution imaging applications with an improved power rating are provided. An X-ray source comprises at least one integrated actuator unit (206, 206′, 206a or 206b) for performing at least one translational and/or rotational displacement by moving the position of the X-ray source's anode (204, 204′, 204a′ or 204b′) relative to a stationary reference position. This helps to overcome power limitations due to an overheating of the anode at its focal ̂spot position (205). In addition to that, a focusing unit (203) for allowing an adapted focusing of the anode's focal spot (205) which compensates deviations in the focal spot size resulting from said anode displacements and/or a deflection means (211, 21 Ia or 21 Ib) for generating an electric and/or magnetic field deflecting the electron beam (202, 202a or 202b) in a direction opposite to the direction of the rotary anode's displacement movement may be provided.
摘要翻译： 提供了用于具有改进的额定功率的高分辨率成像应用中的X射线系统。 X射线源包括至少一个用于通过移动X射线源的阳极（204,204'和206b）的位置来执行至少一个平移和/或旋转位移的集成致动器单元（206,206'，206a或206b） 204a'或204b'）。 这有助于克服由于阳极在其焦点位置（205）处的过热而引起的功率限制。 除此之外，聚焦单元（203）用于允许补偿阳极焦点（205）的适应聚焦，其补偿由所述阳极位移引起的焦点尺寸偏差和/或偏转装置（211,211a或21 可以提供用于产生沿着与旋转阳极的位移运动的方向相反的方向偏转电子束（202,202a或202b）的电和/或磁场的电流（Ib）。
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公开(公告)号：US09424958B2
公开(公告)日：2016-08-23
申请号：US14117869
申请日：2012-05-30
申请人： Gereon Vogtmeier , Rainer Pietig , Christoph Loef , Martin Kimutai Duerr , Gerald James Carlson
发明人： Gereon Vogtmeier , Rainer Pietig , Christoph Loef , Martin Kimutai Duerr , Gerald James Carlson
摘要： For the generation of multiple-energy X-ray radiation, an X-ray tube (10) for generating multiple-energy X-ray radiation includes an anode (12) and a filter (14). At least a first (16) and a second focal spot position (18) are offset from each other in an offset direction (20) transverse to an X-ray radiation projection direction. The filter includes a first plurality (22) of first portions (24) with first filtering characteristics for X-ray radiation and a second plurality (26) of second portions (28) with second filtering characteristics for X-ray radiation. The filter is a directional filter adapted in a such a way that at least a first X-ray beam (30) emanating from the first focal spot position at least partly passes through the filter unit via the first portions, and a second X-ray beam (32) emanating from the second focal spot position passes obliquely through the first and the second portions when passing through the filter unit.
摘要翻译： 为了产生多能量X射线辐射，用于产生多能X射线辐射的X射线管（10）包括阳极（12）和过滤器（14）。 至少第一（16）和第二焦斑位置（18）在横向于X射线辐射投影方向的偏移方向（20）上彼此偏移。 滤波器包括具有用于X射线辐射的第一滤波特性的第一多个第一部分（22）和具有用于X射线辐射的第二滤波特性的第二多个第二部分（26）。 过滤器是一种定向过滤器，其适于使得从第一焦点位置发出的至少第一X射线束（30）至少部分地经由第一部分穿过过滤器单元，并且第二X射线 从第二焦点位置发出的光束（32）在通过过滤器单元时倾斜地穿过第一和第二部分。
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3.发明申请METHOD AND APPARATUS FOR APPLYING MATERIAL TO A SURFACE OF AN ANODE OF AN X-RAY SOURCE, ANODE AND X-RAY SOURCE 审中-公开用于将材料应用于X射线源，阳极和X射线源的阳极表面的方法和装置公开(公告)号：US20110211676A1
公开(公告)日：2011-09-01
申请号：US12672306
申请日：2008-08-04
申请人： Ralf Dorscheid , Gereon Vogtmeier , Rainer Pietig
发明人： Ralf Dorscheid , Gereon Vogtmeier , Rainer Pietig
CPC分类号： H01J35/08 , H01J2235/083 , H01J2235/085
摘要： A method and an apparatus for locally applying material to the surface of an anode of an X-ray source as well as a corresponding anode is presented. Anode material such as a repair material for filling a recess (121) in an X-ray emitting surface (115) is applied to the X-ray emitting surface of an anode (101). The location where such material is to be applied may be detected using a laser beam (133). The applied repair material including particles (41) of anode material such as tungsten, rhenium or molybdenum, is subsequently locally sintered using a high-energy laser beam (151). The sintered material may then be melted using a high-energy electron beam (163). Using such method, a damaged surface of an anode may be locally repaired. Alternatively, structures of different anode materials or of protrusions having different levels can be provided on the X-ray emitting surface (115) in order to selectively manipulate the X-ray emitting characteristics of the anode (101).
摘要翻译： 提出了一种用于将材料局部施加到X射线源的阳极表面以及相应的阳极的方法和装置。 向阳极（101）的X射线发射面施加阳极材料，例如用于填充X射线发射表面（115）中的凹部（121）的修复材料。 可以使用激光束（133）来检测施加这种材料的位置。 随后使用高能激光束局部烧结包括诸如钨，铼或钼的阳极材料的颗粒（41）的施加的修复材料。 然后可以使用高能电子束（163）熔化烧结材料。 使用这种方法，可以局部地修复阳极损坏的表面。 或者，可以在X射线发射表面（115）上提供不同阳极材料或具有不同水平的突起的结构，以选择性地操纵阳极（101）的X射线发射特性。
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公开(公告)号：US09348067B2
公开(公告)日：2016-05-24
申请号：US13319196
申请日：2010-06-09
CPC分类号： G02B5/1857 , A61B6/484 , G21K2201/06 , G21K2207/005
摘要： The present invention relates to phase-contrast imaging which visualizes the phase information of coherent radiation passing a scanned object. Focused gratings are used which reduce the creation of trapezoid profile in a projection with a particular angle to the optical axis. A laser supported method is used in combination with a dedicating etching process for creating such focused grating structures.
摘要翻译： 本发明涉及相位成像，其可视化通过扫描对象的相干辐射的相位信息。 使用聚焦光栅，其减小了与光轴具有特定角度的投影中的梯形轮廓的产生。 激光支持的方法与用于产生这种聚焦光栅结构的专用蚀刻工艺组合使用。
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公开(公告)号：US08699657B2
公开(公告)日：2014-04-15
申请号：US13139308
申请日：2009-12-10
CPC分类号： A61B6/405 , A61B6/032 , A61B6/4007 , A61B6/4028 , A61B6/4035 , A61B6/4241 , A61B6/482
摘要： The present invention relates to an examination apparatus and a corresponding method to realize a Spectral x-ray imaging device through inverse-geometry CT. The proposed examination apparatus comprises: an X-ray source unit (14) comprising a plurality of X-ray sources (15) for emitting X-rays (24) at a plurality of locations, an X-ray detection unit (18) for detecting X-rays emitted from one or more of said X-ray sources (15) after penetration of an examination area (19) between said X-ray source unit (14) said X-ray detection unit (18) and for generating detection signals, a processing unit (36) for processing the generated detection signals, and—a control unit (26) for controlling said X-ray sources (15) to subsequently, alone or in groups emit X-rays at least two different energy spectra such that in the time interval, during which a particular X-ray source (15a) or said group of X-ray sources (15a,15d, 15g), is switched over to emit X-rays at a different energy spectrum, said particular X-ray source (15a) or said group of X-ray sources (15a, 15d, 15g) is switched off and one or more other X-ray sources (15b, 15c) or groups of X-ray sources (15b, 15e, 15h; 15c, 15f, 15i) are subsequently switched on to emit X-rays.
摘要翻译： 本发明涉及通过逆几何CT实现光谱X射线成像装置的检查装置和相应的方法。 所提出的检查装置包括：X射线源单元（14），包括用于在多个位置发射X射线（24）的多个X射线源（15）; X射线检测单元（18），用于 检测在所述X射线源单元（14）所述X射线检测单元（18）上的检查区域（19）穿透之后从一个或多个所述X射线源（15）发射的X射线，并且用于产生检测 信号，用于处理所生成的检测信号的处理单元（36），以及用于随后单独或分组地控制所述X射线源（15）的控制单元（26）发射X射线至少两个不同的能谱 使得在特定X射线源（15a）或所述X射线源组（15a，15d，15g）的切换期间以不同的能谱发射X射线的时间间隔中，所述特定 X射线源（15a）或X射线源组（15a，15d，15g）被切断，一个或多个X射线源（15b，15c）或X射线组 （15b，15e，15h; 15c，15f，15i）随后被接通以发射X射线。
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6.发明申请公开(公告)号：US20110122999A1
公开(公告)日：2011-05-26
申请号：US13055512
申请日：2009-08-06
申请人： Gereon Vogtmeier , Ralf Dorscheid
发明人： Gereon Vogtmeier , Ralf Dorscheid
CPC分类号： G21K1/025 , B22F3/114 , B22F7/002 , B22F2998/10 , B33Y70/00 , B33Y80/00 , Y02P10/295 , B22F3/1055
摘要： A grid (1) for selective transmission of electromagnetic radiation and a method for manufacturing such grid is proposed. Therein, the grid (1) comprises a structural element with walls (3) comprising a plurality of particles (19) of a radiation-absorbing material wherein the particles (19) are sintered together such that pores (21) are present between neighbouring particles (19). The pores (21) are at least partially filled with a second solid material. The filling of the pores (21) can be done by inserting the second material in a liquid, preferably molten form into the pores. The second material can be itself radiation-absorbing as well and may help to both, increase the mechanical stability of the grid and to enhance the radiation-absorbing properties.
摘要翻译： 提出了用于电磁辐射选择性传输的电网（1）及其制造方法。 其中，网格（1）包括具有壁（3）的结构元件，所述壁（3）包括多个辐射吸收材料的颗粒（19），其中所述颗粒（19）被烧结在一起，使得孔（21）存在于相邻颗粒 （19）。 孔（21）至少部分地填充有第二固体材料。 孔（21）的填充可以通过将第二材料以液体，优选熔融形式插入孔中来完成。 第二种材料本身也可以是吸收辐射的，并且可以帮助两者，增加电网的机械稳定性并增强辐射吸收性能。
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公开(公告)号：US20110079865A1
公开(公告)日：2011-04-07
申请号：US12996400
申请日：2009-06-09
IPC分类号： H01L31/0224 , H01L21/02
CPC分类号： G01T1/2928
摘要： The invention relates to a radiation detector (10), comprising an array of pixels (1), wherein each pixel (1) comprises a conversion layer of a semiconductor material (4) for converting incident radiation into electrical signals and wherein each pixel (1) is surrounded by a trench (3) that is at least partly filled with a barrier material that absorbs at least a part of photons generated by the incident radiation. The invention also relates to a method of manufacturing such a radiation detector (10).
摘要翻译： 本发明涉及一种包括像素阵列（1）的辐射检测器（10），其中每个像素（1）包括用于将入射辐射转换成电信号的半导体材料（4）的转换层，并且其中每个像素 ）由至少部分地填充有吸收入射辐射产生的光子的至少一部分的阻挡材料的沟槽（3）包围。 本发明还涉及一种制造这种辐射探测器（10）的方法。
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公开(公告)号：US20100008558A1
公开(公告)日：2010-01-14
申请号：US12518480
申请日：2007-12-11
IPC分类号： G06K9/00
摘要： The invention relates to an X-ray imaging device (100), particularly a Spectral-CT scanner, that comprises an X-ray source (10) for generating X-radiation with an energy spectrum (P(E,t)) which varies continuously during an observation period (T). In a preferred embodiment, the radiation (X) is attenuated in an object (1) according to an energy-dependent attenuation coefficient μ(E,r), the transmitted radiation is measured by sensor units (22) of a detector (20, 30), and the resulting measurement signal (i(t)) is sampled and A/D converted. This is preferably done by an oversampling A/D converter, for example a ΣΔ-ADC. The tube voltage (U(t)) that drives the X-ray source is sampled with high frequency. In an evaluation system (50), these sampled measurement values can be associated with corresponding effective energy spectra (Φ(E)) to determine the energy dependent attenuation coefficient μ(E,r).
摘要翻译： 本发明涉及一种X射线成像装置（100），特别是一种光谱CT扫描仪，其包括用于产生具有变化的能谱（P（E，t））的X射线的X射线源（10） 在观察期间（T）持续。 在优选实施例中，辐射（X）根据能量依赖衰减系数μ（E，r）在物体（1）中衰减，透射辐射由检测器（20,20）的传感器单元（22） 30），并且对所得到的测量信号（i（t））进行采样和A / D转换。 这最好由过采样A / D转换器，例如SigmaDelta-ADC完成。 驱动X射线源的管电压（U（t））以高频率进行采样。 在评估系统（50）中，这些采样的测量值可以与相应的有效能量谱（Phi（E））相关联，以确定能量依赖衰减系数μ（E，r）。
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公开(公告)号：US07627086B2
公开(公告)日：2009-12-01
申请号：US10596025
申请日：2004-11-19
申请人： Gereon Vogtmeier
发明人： Gereon Vogtmeier
IPC分类号： H05G1/64 , H01L27/146
CPC分类号： G01T1/2985 , G01T1/2018
摘要： A detector arrangement (10) for detecting and transferring detector signals to a processing unit is described. This detector arrangement is provided in particular for use in a computer tomograph for high-resolution detection of X-rays, the processing unit being in the form of a central processing unit or buffer memory (Z) on a rotatable portion of a gantry (1). To transfer the detector signals with the minimum number of contacts or plug-in connectors also in the case of a high-resolution detector arrangement (10), this comprises at least one detector module having a plurality of individual detector elements as well as an electrical unit having an electro-optical transducer for processing the signals of the detector elements and for generating optical detector module output signals.
摘要翻译： 描述了用于检测和传送检测器信号到处理单元的检测器装置（10）。 该检测器装置特别用于在X射线的高分辨率检测的计算机断层摄影机中使用，处理单元在台架的可旋转部分（1）上呈中央处理单元或缓冲存储器（Z）的形式 ）。 为了在具有高分辨率检测器装置（10）的情况下传送具有最小数量的触点或插入式连接器的检测器信号，这包括至少一个检测器模块，其具有多个单独的检测器元件以及电 单元具有用于处理检测器元件的信号并用于产生光学检测器模块输出信号的电光换能器。
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公开(公告)号：US07545912B2
公开(公告)日：2009-06-09
申请号：US10573743
申请日：2004-09-24
摘要： An X-ray unit according to the invention has a first arrangement (2) that is intended for the contactless and X-ray free measurement of first data of an object (1). A control unit (3) controls, on the basis of the first data of the object, a second arrangement (4) that measures X-ray data of the object by means of X-rays. With such an X-ray unit, first data 5 of the object can be obtained without using X-rays and control of the measurement of the X-ray data is made possible, with the result that, for the optimum quality of the X-ray data, only a minimum X-ray dose is applied to the object.
摘要翻译： 根据本发明的X射线单元具有用于对物体（1）的第一数据进行非接触式和无X射线测量的第一布置（2）。 控制单元（3）基于物体的第一数据来控制通过X射线测量物体的X射线数据的第二装置（4）。 利用这样的X射线单元，可以不使用X射线来获得物体的第一数据5，并且可以进行X射线数据的测量的控制，结果，对于X射线单元的最佳质量， 射线数据，只有最小X射线剂量被施加到物体。
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