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1. 发明申请

WO2007149749A3 MULTI-TUBE IMAGING SYSTEM SCATTER CORRECTION 审中-公开
公开(公告)号：WO2007149749A3
公开(公告)日：2007-12-27
申请号：PCT/US2007/071095
申请日：2007-06-13
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , U.S. PHILIPS CORPORATION , DAVID, Bernd , GRASS, Michael , LEWALTER, Astrid, Fatou , PIETIG, Rainer
发明人： DAVID, Bernd , GRASS, Michael , LEWALTER, Astrid, Fatou , PIETIG, Rainer
IPC分类号： A61B6/03
摘要： A computed tomography reconstruction method includes concurrently emitting radiation from at least two x-ray sources (14), switching the output state of each of the at least two x-ray sources (14) within a plurality of respective cross scatter sampling intervals (50, 52, 54, 56) and detecting with a corresponding one of the sets of detectors (24) cross scatter radiation emitted by the other at least two x-ray sources (14), wherein the cross scatter sampling intervals are angularly spaced over a plurality of frames to allow the at least two x-ray sources (14) to concurrently emit radiation throughout at least one frame, deriving scatter correction data for each set of detectors (24) from corresponding cross scatter samples, scatter correcting the projection data with corresponding scatter correction data, and reconstructing the scatter corrected projection data to generate at least one image.

2. 发明申请

WO2007066243A3 SYSTEMS AND METHODS FOR SCANNING AND DATA ACQUISITION IN COMPUTED TOMOGRAPHY (CT) APPLICATIONS 审中-公开
公开(公告)号：WO2007066243A3
公开(公告)日：2007-06-14
申请号：PCT/IB2006/053331
申请日：2006-09-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , U.S. PHILIPS CORPORATION , LEWALTER, Astrid , PIETIG, Rainer , ZEITLER, Guenter , ECK, Kai , HERRMANN, Christoph , KIEWITT, Rainer , LOEF, Christoph , MUELHENS, Oliver , RIBBING, Carolina , MATTHIAS, Simon , WISCHHUSEN, Olaf , ROSE, Georg
发明人： LEWALTER, Astrid , PIETIG, Rainer , ZEITLER, Guenter , ECK, Kai , HERRMANN, Christoph , KIEWITT, Rainer , LOEF, Christoph , MUELHENS, Oliver , RIBBING, Carolina , MATTHIAS, Simon , WISCHHUSEN, Olaf , ROSE, Georg
IPC分类号： A61B6/03
摘要： Systems and methods for data acquisition in computed tomography (CT) applications are provided. The systems and methods are particularly adapted for scanning and acquiring/processing data in connection with high-power cone-beam CT applications. The electron beam is moved/scanned along the anode surface to multiple focal positions. Data acquisition for a full projection at one focus position and one view angle is achieved by activating each focus position multiple times during the data acquisition for one angle of the gantry. The detector array and associated data processing system are adapted to rapidly switch between the different focus positions during the acquisitions for one view angle and to collect all data belonging to the same projection into the same data set. Adaptive electron optics are utilized to move/scan the electron beam along the anode surface to the various focus positions. Alternatively, a plurality of cathodes may be provided for respective focus positions and the system may support fast switching therebetween to achieve desirably short spot times. The disclosed CT system permits greater power densities without risk of heat damage to the anode and effectively increases the track velocity of the electron beam on the anode surface. The CT system and associated data acquisition methods have particular utility in CT applications requiring increased time resolution and/or spatial resolution, e.g., cardiac CT applications.

3. 发明申请

WO2009115982A1 COMPUTED TOMOGRAPHY SCANNER APPARATUS AND METHOD FOR CT-BASED IMAGE ACQUISITION BASED ON SPATIALLY DISTRIBUTED X-RAY MICROSOURCES OF THE CONE-BEAM TYPE 审中-公开
标题翻译：计算机图像扫描仪装置和基于CT的图像采集方法基于空间分布的锥形X射线微观结构
公开(公告)号：WO2009115982A1
公开(公告)日：2009-09-24
申请号：PCT/IB2009/051083
申请日：2009-03-17
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , VOGTMEIER, Gereon , BREDNO, Joerg , PIETIG, Rainer , GRASS, Michael , OVERDICK, Michael
发明人： VOGTMEIER, Gereon , BREDNO, Joerg , PIETIG, Rainer , GRASS, Michael , OVERDICK, Michael
IPC分类号： G01N23/04 , A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4085 , A61B6/503 , A61B6/508 , A61B6/587 , H01J35/065 , H01J2235/068
摘要： The present invention refers to distributed X-ray source computed tomography (CT) based imaging systems and, more particularly, to a CT scanner apparatus and method for a CT-based image acquisition and 3D reconstruction using stationary, partly stationary or non-stationary source-detector setup geometries with at least one detector ring fixedly attached to a gantry (101) and a number of contiguous or partly contiguous radiator arrays (RA 1 , RA 2 , …, RA N ),each comprising a number of spatially distributed X-ray microsources (R, MS) of the cone-beam type, which may preferably be fabricated in carbon nanotube (CNT) technology, thus allowing higher sampling rates for an improved temporal resolution of acquired CT images as needed for an exact reconstruction of fast moving objects (such as e.g. the myocard) from a set of acquired projection data. Different arrangements of CNT-type radiator or source arrays (RA 1 , RA 2 , …, RA N ) and detector arrays (DA 1 , DA 2 , …, DA N ) as described with reference to exemplary embodiments of the present invention are proposed which, within improved sampling constraints as mentioned above, serve to enhance the spatial resolution of the reconstructed images by reducing artifacts that may result from missing or partial available image acquisition data.
摘要翻译：本发明涉及基于分布式X射线源计算机断层摄影（CT）的成像系统，更具体地，涉及一种用于基于CT的图像采集和使用静止，部分静止或非静止源的3D重建的CT扫描仪装置和方法 - 检测器设置几何形状，其中至少一个检测器环固定地连接到台架（101）和多个连续或部分相邻的辐射器阵列（RA1，RA2，RAN），每个辐射器阵列包括多个空间分布的X射线微源锥形束类型，其可以优选地以碳纳米管（CNT）技术制造，因此允许更高的采样率，用于对快速移动物体的精确重建所需的所获得的CT图像的改善的时间分辨率（例如例如心肌）从一组获得的投影数据。提出了如参考本发明的示例性实施例所描述的CNT型散热器或源阵列（RA1，RA2，RAN）和检测器阵列（DA1，DA2，DAN）的不同布置，其在改进的采样约束如上所述，用于通过减少可能由缺失或部分可用图像采集数据导致的伪像来增强重建图像的空间分辨率。

4. 发明申请

WO2008053403A2 SWITCHING SCHEME FOR A STEREO ROTATING ANODE TUBE 审中-公开
标题翻译：立体旋转阳极管的切换方案
公开(公告)号：WO2008053403A2
公开(公告)日：2008-05-08
申请号：PCT/IB2007/054318
申请日：2007-10-24
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , PIETIG, Rainer , DAVID, Bernd , LEWALTER, Astrid
发明人： PIETIG, Rainer , DAVID, Bernd , LEWALTER, Astrid
IPC分类号： H05G1/70 , H01J35/26 , H01J35/10
CPC分类号： H05G1/70 , A61B6/027 , H01J35/10 , H01J35/26
摘要： For x-ray tubes the focal spot temperature is a critical factor. According to an exemplary embodiment of the present invention, an examination apparatus is provided which has a synchronisation unit providing an operation mode for a stereo tube in which the anode rotation frequency is synchronised with the switching frequency such that the switching frequency is a half integer multiple of the anode rotation frequency. This may lead to a significant reduction of the focal spot temperature.
摘要翻译：对于X射线管，焦点温度是关键因素。根据本发明的示例性实施例，提供了一种检查装置，其具有同步单元，该同步单元提供立体管的操作模式，其中阳极旋转频率与开关频率同步，使得开关频率为半个整数倍的阳极旋转频率。这可能导致焦点温度的显着降低。

5. 发明申请

WO2012168832A1 MULTIPLE FOCAL SPOT X-RAY RADIATION FILTERING 审中-公开
标题翻译：多重焦点点X射线辐射滤波
公开(公告)号：WO2012168832A1
公开(公告)日：2012-12-13
申请号：PCT/IB2012/052703
申请日：2012-05-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , VOGTMEIER, Gereon , PIETIG, Rainer , LOEF, Christoph , DUERR, Martin, Kimutai , CARLSON, Gerald, James
发明人： VOGTMEIER, Gereon , PIETIG, Rainer , LOEF, Christoph , DUERR, Martin, Kimutai , CARLSON, Gerald, James
IPC分类号： G21K1/04 , G21K1/10
CPC分类号： G21K1/08 , G01N23/04 , G21K1/025 , G21K1/10 , H01J35/08 , H01J35/30
摘要： The present invention relates to filtering of X-ray radiation generated at multiple focal spots. For the generation of multiple-energy X-ray radiation, an X-ray tube (10) for generating multiple-energy X-ray radiation is provided that comprises an anode (12) and a filter unit (14). The anode comprises at least a first (16) and a second focal spot position (18), which are offset from each other in an offset direction (20) transverse to an X-ray radiation projection direction. The filter unit comprises 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, wherein the filter unit is a directional filter adapted in a such a way that at least a first part of 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 at least a second part of a second X-ray beam (32) emanating from the second focal spot position passes the second portions when passing through the filter unit. The second part of the second X-ray beam is larger than the first part of the first X-ray beam. A portion of the parts of the first X-ray beam, which pass through the filter unit via the first portions, and a portion of the second X-ray beam, which passes the second portions when passing through the filter unit, pass through a common area of the filter unit.
摘要翻译：本发明涉及在多个焦斑处产生的X射线辐射的过滤。为了产生多能量X射线辐射，提供了一种用于产生多能量X射线辐射的X射线管（10），其包括阳极（12）和过滤器单元（14）。阳极包括至少第一焦点位置（18）和第二焦斑位置（18），它们在横向于X射线辐射投影方向的偏移方向（20）上彼此偏移。过滤器单元包括具有用于X射线辐射的第一滤波特性的第一部分（22）的第一多个（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），其中，过滤器单元是一种定向过滤器，其适于使得从第一焦斑位置发出的第一X射线束（30）的至少第一部分至少部分地经由第一部分通过过滤器单元，并且在从第二焦点位置发出的第二X射线束（32）的最少第二部分在通过过滤器单元时通过第二部分。第二X射线束的第二部分大于第一X射线束的第一部分。通过第一部分的第一X射线束的部分通过过滤器单元的部分和当通过过滤器单元时通过第二部分的第二X射线束的一部分穿过一个过滤器单元的公共区域。

6. 发明申请

WO2007110797A1 DUAL-COLOUR PYROMETRIC MEASUREMENT OF X-RAY FOCAL SPOT TEMPERATURE 审中-公开
标题翻译： X射线焦点温度的双色度色度测量
公开(公告)号：WO2007110797A1
公开(公告)日：2007-10-04
申请号：PCT/IB2007/050885
申请日：2007-03-15
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , PIETIG, Rainer , MARTINY, Christoph
发明人： PIETIG, Rainer , MARTINY, Christoph
IPC分类号： H01J35/10 , H01J35/14 , H01J35/24 , H05G1/36
CPC分类号： H05G1/36 , G01J5/602 , H01J35/26
摘要： An x-ray tube disclosed here in includes an emitter arranged to emit electrons on to a focal spot on a rotatable anode. The x-ray tube also includes a hollow tube arranged to receive electromagnetic radiation from the focal spot at one end of the hollow tube and transmit it to another end. The x-ray tube also includes two or more sensors arranged to detect the electromagnetic radiation through the hollow tube.
摘要翻译：这里公开的X射线管包括发射器，其发射电子到可旋转阳极上的焦斑上。 X射线管还包括中空管，该中空管布置成在中空管的一端处接收来自焦点的电磁辐射并将其传送到另一端。 X射线管还包括两个或更多个传感器，其布置成检测通过中空管的电磁辐射。

7. 发明申请

WO2003107481A1 MINIATURIZED MULTIBAND ANTENNA 审中-公开
标题翻译： MINIATURIZED多天线天线
公开(公告)号：WO2003107481A1
公开(公告)日：2003-12-24
申请号：PCT/IB2003/002224
申请日：2003-06-11
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , BRAMBILLA, Nora , HILGERS, Achim , PELZER, Heiko , PIETIG, Rainer , PURR, Thomas
发明人： BRAMBILLA, Nora , HILGERS, Achim , PELZER, Heiko , PIETIG, Rainer , PURR, Thomas
IPC分类号： H01Q5/00
CPC分类号： H01Q1/38 , H01Q1/243 , H01Q5/378
摘要： The invention relates to an antenna comprising a dielectric substrate (1) and two resonant printed wiring structures, more particularly for use in high-frequency and microwave domain. On an end face of the substrate (1) a first printed wiring structure (2) is arranged along a first edge and on an opposite, second edge of the same end face a second printed wiring structure (3). The arrangement of the printed wiring structures provides that resonances are developed which make the use of the proposed antennas in the four separate GPS, DCS/PCS, UMTS and Bluetooth applications possible.
摘要翻译：本发明涉及一种包括电介质基片（1）和两个共振印刷线路结构的天线，更具体地说是用于高频和微波领域。在基板（1）的端面上，第一印刷布线结构（2）沿着第一边缘布置在同一端面的与第二印刷布线结构（3）相对的第二边缘上。印刷布线结构的布置提供了共振，其使得可以在四个单独的GPS，DCS / PCS，UMTS和蓝牙应用中使用所提出的天线。

8. 发明申请

WO2009022292A2 HYBRID DESIGN OF AN ANODE DISK STRUCTURE FOR HIGH POWER X-RAY TUBE CONFIGURATIONS OF THE ROTARY-ANODE TYPE 审中-公开
标题翻译：旋转阳极型高功率X射线管配置的ANODE盘结构的混合设计
公开(公告)号：WO2009022292A2
公开(公告)日：2009-02-19
申请号：PCT/IB2008/053225
申请日：2008-08-12
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , TECHNISCHE UNIVERSITÄT DRESDEN , LEWALTER, Astrid , PIETIG, Rainer , LANGKAMP, Albert , RICHTER, Heiko , BEHNISCH, Thomas , HUFENBACH, Werner , BEHLING, Rolf, K., O. , BATHE, Christoph
发明人： LEWALTER, Astrid , PIETIG, Rainer , LANGKAMP, Albert , RICHTER, Heiko , BEHNISCH, Thomas , HUFENBACH, Werner , BEHLING, Rolf, K., O. , BATHE, Christoph
IPC分类号： H01J35/10
CPC分类号： H01J35/108 , H01J2235/081 , H01J2235/088 , H01J2235/1006
摘要： The present invention is related to high power X-ray sources, in particular to those ones that are equipped with rotating X-ray anodes capable of delivering a much higher short time peak power than conventional rotating X-ray anodes according to the prior art. The herewith proposed design principle thereby aims at overcoming thermal limitation of peak power by allowing extremely fast rotation of the anode and by introducing a lightweight material with high thermal conductivity (2) in the region adjacent to the focal track material (4). The extremely fast rotation is enabled by providing sections of the rotary anode disk made of anisotropic high specific strength materials with high thermal stability (1, 3, 6) which will be specifically adapted to the high stresses building up when the anode is operated, as for example fiber-reinforced ceramic materials. An X-ray system equipped with a high peak power anode according to the present invention will be capable of high speed image acquisition with high resolution and high coverage. Such a high-speed rotary anode disk can advantageously be applied in X-ray tubes for material inspection or medical radiography, for X-ray imaging applications which are needed for acquiring image data of moving objects in real-time, such as e.g. in the scope of cardiac CT, or for any other X-ray imaging application that requires high-speed image data acquisition. According to a further exemplary embodiment, the invention is directed to a rotary anode disk divided into distinct anode segments (10a, 10b) with adjacent anode segments which may e.g. be limited to each other by straight radial (14a) or S- shaped slits (14b) ranging from the inner anode bulk (1) to the inner radial edge of the anode disk's outer frame section (3). Other exemplary embodiments of the present invention relate to a rotary anode disk structure design which comprises liquid metal conductors (16a) between the inner anode bulk (1) and a rotary shaft (12) needed for rotating the rotary anode disk about its rotational axis (5), said liquid metal conductors (16a) providing a liquid metal connection between the rotary anode and its rotary shaft (12), or to a rotary anode disk structure which comprises a sliding radial connection (17) and a flexible heat conductor (18) between the inner anode bulk (1) and the rotary shaft (12).
摘要翻译：本发明涉及高功率X射线源，特别是与根据现有技术的传统旋转X射线阳极相比，能够传送高得多的短时峰值功率的旋转X射线阳极的X射线源。因此，本文提出的设计原理旨在通过允许阳极极快地旋转并且通过在邻近焦点轨道材料（4）的区域中引入具有高导热性的轻质材料（2）来克服峰值功率的热限制。通过提供由具有高热稳定性（1,3,6）的各向异性高比强度材料制成的旋转阳极盘的部分实现极快的旋转，这将特别适用于在阳极操作时建立的高应力，如例如纤维增强陶瓷材料。具有根据本发明的高峰值功率阳极的X射线系统将能够以高分辨率和高覆盖率进行高速图像采集。这样的高速旋转阳极盘可以有利地应用于用于材料检查或医学放射照相的X射线管中，用于实时获取移动物体的图像数据所需的X射线成像应用，例如。在心脏CT的范围内，或者需要高速图像数据采集的任何其他X射线成像应用。根据另一示例性实施例，本发明涉及一种旋转阳极盘，其分成具有相邻阳极段的不同阳极段（10a，10b）通过从内阳极体（1）到阳极盘的外框部（3）的内径向边缘的直径（14a）或S形狭缝（14b）彼此限制。本发明的其它示例性实施例涉及一种旋转阳极盘结构设计，其包括在内阳极体（1）和旋转阳极盘绕其旋转轴线旋转所需的旋转轴（12）之间的液态金属导体（16a） 5），所述液态金属导体（16a）在旋转阳极和其旋转轴（12）之间提供液态金属连接，或旋转阳极盘结构，其包括滑动径向连接（17）和柔性热导体（18））在内部阳极体（1）和旋转轴（12）之间。

9. 发明申请

WO2009019645A3 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
公开(公告)号：WO2009019645A3
公开(公告)日：2009-02-12
申请号：PCT/IB2008/053102
申请日：2008-08-04
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , DORSCHEID, Ralf , VOGTMEIER, Gereon , PIETIG, Rainer
发明人： DORSCHEID, Ralf , VOGTMEIER, Gereon , PIETIG, Rainer
IPC分类号： H01J35/08
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).

10. 发明申请

WO2003003507A1 PHASED ARRAY ANTENNA 审中-公开
标题翻译：天线阵列
公开(公告)号：WO2003003507A1
公开(公告)日：2003-01-09
申请号：PCT/IB2002/002673
申请日：2002-06-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS CORPORATE INTELLECTUAL PROPERTY GMBH , PIETIG, Rainer , PURR, Thomas
发明人： PIETIG, Rainer , PURR, Thomas
IPC分类号： H01Q1/24
CPC分类号： H01Q21/062 , H01Q1/243 , H01Q21/065 , H01Q21/24
摘要： The invention relates to a miniaturized phased array antenna with a plurality of individual radiator elements (10xy), which antenna is designed in particular for use in the microwave frequency range. The antenna is characterized in particular that the radiator elements (10xy) are each aligned in dependence on their positions in the array so as to achieve a current distribution over the antenna as determined for a desired antenna characteristic. This renders it possible to realize a very strongly miniaturized antenna without the efficiency of the antenna being appreciably reduced.
摘要翻译：本发明涉及具有多个单独散热器元件（10xy）的小型化相控阵天线，该天线特别设计用于微波频率范围。特别地，天线的特征在于，散热器元件（10xy）各自依赖于它们在阵列中的位置而对准，以便根据期望的天线特性确定天线上的电流分布。这使得可以实现非常强的小型化天线，而天线的效率明显降低。

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