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1. 发明公开

EP1738389A1 A DEVICE FOR GENERATING X-RAYS HAVING A LIQUID METAL ANODE 有权
标题翻译：用于产生具有液态金属阳极的X射线的装置
公开(公告)号：EP1738389A1
公开(公告)日：2007-01-03
申请号：EP05718604.1
申请日：2005-03-31
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： BARSCHORF, Hans , DAVID, Bernd, R. , THRAN, Axel
IPC分类号： H01J35/08
CPC分类号： H01J35/08 , H01J2235/082
摘要： The invention relates to a device for generating X-rays (18) comprising an electron source (3) for emitting electrons accommodated in a vacuum space (2), a liquid metal circuit including a liquid metal for emitting X-rays as a result of the incidence of electrons and a pumping means (11) for causing a flow of the liquid metal through a constriction (7) where the electrons emitted by the electron source (3) impinge upon the liquid metal, and a radiation window (12) bounding said constriction (7), which is transparent to electrons and X-rays and separates the constriction (7) from the vacuum space (2). To provide a device for generating X-rays in which a cross-sectional area of the constriction substantially corresponds to an intended, desired cross-sectional area due to a self-regulating process without the need for external or additional components or electronics, it is proposed that said constriction (7) being bounded by a compensation window (13) opposite of said radiation window (12), which separates the constriction (7) from a pressure chamber (14) containing liquid metal provided by said liquid metal circuit via a connection (15), and which, during operation, has a profile (p') as a result of a deformation caused by a pressure in the pressure chamber (14) different from the pressure in the constriction (7) which substantially matches a profile (p) which the radiation window (12) has, during operation, as a result of a deformation of the radiation window (12) caused by a pressure of the liquid metal in the constriction (7).
摘要翻译：本发明涉及一种用于产生X射线的装置（18），其包括用于发射容纳在真空空间（2）中的电子的电子源（3），液态金属电路，其包括用于发射X射线的液态金属，电子的发生率以及用于使液态金属流过电子源（3）发射的电子撞击液态金属的收缩部分（7）的泵送装置（11），以及辐射窗口（12）所述收缩部（7）对电子和X射线是透明的，并将收缩部（7）与真空空间（2）分开。为了提供用于产生X射线的装置，其中缩颈的横截面面积基本上对应于由于自调节过程而不需要外部或附加部件或电子器件的期望的期望横截面面积，所以它是（7）由与所述辐射窗口（12）相对的补偿窗口（13）界定，所述补偿窗口将收缩部分（7）与包含由所述液体金属电路提供的液体金属的压力腔室（14）隔开连接（15），并且在运行过程中由于压力室（14）中的压力不同于收缩部（7）中的压力而导致变形的结果（p'）基本上匹配轮廓（12）在所述收缩部（7）中由于所述液态金属的压力引起的所述辐射窗（12）的变形而在操作期间具有所述辐射窗（12）

2. 发明公开

EP2255374A2 CIRCULAR TOMOSYNTHESIS X-RAY TUBE 审中-公开
标题翻译：圆形断层合成X射线管
公开(公告)号：EP2255374A2
公开(公告)日：2010-12-01
申请号：EP09720022.4
申请日：2009-03-06
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： THRAN, Axel , ERHARD, Klaus
IPC分类号： H01J35/06 , H01J35/14
CPC分类号： H01J35/065 , H01J35/14 , H01J2235/062 , H01J2235/066 , H01J2235/068
摘要： Tomosynthesis system with a rotating anode X-ray tube enabling a circular scan trajectory, wherein the X-ray tube 1 may be equipped witha large number ofcathodes (21, 22) distributed around an anode. This allows to generate X-rays (41, 42) at focal spot positions (11, 12), for example evenly distributed on a for example circular line (14) on the surface (15) of an anode (10). The object (61) may be located on the (10) axis of rotation (6) of the anode at some distance to the source. For an examination, the object (61) may be exposed to X-ray beams (41, 42) generated successively on all focal spot positions (11, 12), wherein no movement of the X-ray tube 1 is necessary. The transmitted X-ray intensities may be measured by a flat panel detector (50) to achieve a reconstructed three-dimensional image data.

3. 发明公开

EP2052282A2 SYSTEM AND METHOD FOR ACQUIRING IMAGE DATA 审中-公开
标题翻译：系统和方法图像数据的取得
公开(公告)号：EP2052282A2
公开(公告)日：2009-04-29
申请号：EP07805334.5
申请日：2007-08-07
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： SCHLOMKA, Jens-Peter , THRAN, Axel
IPC分类号： G01V5/00 , G01T1/164
CPC分类号： G01V5/0025 , G01T1/1644 , G01V5/005
摘要： According to an exemplary embodiment an imaging system (100) for examining an object under examination comprises a scanning unit, wherein the scanning unit comprises a radiation source (106, 108), and a detection unit (107, 109), wherein the scanning unit is adapted to emit a radiation beam (123), which radiation beam follows a linear movement of the object under examination such that a predetermined region of the object under examination is scanned while the object under examination moves.

4. 发明公开

EP1934586A2 ACQUISITION PARAMETER OPTIMIZATION FOR CSCT 审中-公开
标题翻译：优化进行收购事项之CSCT参数的
公开(公告)号：EP1934586A2
公开(公告)日：2008-06-25
申请号：EP06809497.8
申请日：2006-10-04
申请人： Philips Intellectual Property & Standards GmbH , Koninklijke Philips Electronics N.V.
发明人： SCHLOMKA, Jens-Peter , VAN STEVENDAAL, Udo , THRAN, Axel , GREWER, Rüdiger
IPC分类号： G01N23/201 , G01N23/04
CPC分类号： G01V5/0025 , G01V5/005
摘要： Whereas the CT image can be acquired in a single revolution, the CSCT image acquisition may require several revolutions. According to an exemplary embodiment of the present invention, a CT/CSCT apparatus may be provided which uses CT data acquired during the first revolution to optimize acquisition parameters for the subsequent revolutions. Furthermore, projection data acquired with a pre-scanner may also be used for determining current modulation or setting an optimum voltage for the subsequent CSCT scan.

5. 发明授权

EP1738389B1 A DEVICE FOR GENERATING X-RAYS HAVING A LIQUID METAL ANODE 有权
标题翻译：器具，用于产生的X射线与液态金属阳极
公开(公告)号：EP1738389B1
公开(公告)日：2007-08-29
申请号：EP05718604.1
申请日：2005-03-31
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： BARSCHORF, Hans , DAVID, Bernd, R. , THRAN, Axel
IPC分类号： H01J35/08
CPC分类号： H01J35/08 , H01J2235/082
摘要： The invention relates to a device for generating X-rays (18) comprising an electron source (3) for emitting electrons accommodated in a vacuum space (2), a liquid metal circuit including a liquid metal for emitting X-rays as a result of the incidence of electrons and a pumping means (11) for causing a flow of the liquid metal through a constriction (7) where the electrons emitted by the electron source (3) impinge upon the liquid metal, and a radiation window (12) bounding said constriction (7), which is transparent to electrons and X-rays and separates the constriction (7) from the vacuum space (2). To provide a device for generating X-rays in which a cross-sectional area of the constriction substantially corresponds to an intended, desired cross-sectional area due to a self-regulating process without the need for external or additional components or electronics, it is proposed that said constriction (7) being bounded by a compensation window (13) opposite of said radiation window (12), which separates the constriction (7) from a pressure chamber (14) containing liquid metal provided by said liquid metal circuit via a connection (15), and which, during operation, has a profile (p') as a result of a deformation caused by a pressure in the pressure chamber (14) different from the pressure in the constriction (7) which substantially matches a profile (p) which the radiation window (12) has, during operation, as a result of a deformation of the radiation window (12) caused by a pressure of the liquid metal in the constriction (7).

6. 发明公开

EP2633498A1 APPARATUS AND METHOD FOR HYBRID RECONSTRUCTION OF AN OBJECT FROM PROJECTION DATA 有权转让
标题翻译：装置和方法的对象从投影数据混合重建
公开(公告)号：EP2633498A1
公开(公告)日：2013-09-04
申请号：EP11776580.0
申请日：2011-10-17
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： KOEHLER, Thomas , THRAN, Axel
IPC分类号： G06T11/00
CPC分类号： G06T5/001 , G06T11/006 , G06T2211/421 , G06T2211/424
摘要： The invention relates to an imaging apparatus for imaging an object of interest. An analytical reconstruction unit (12) analytically reconstructs an analytical image of the object from detection data, in particular, from projection data, and an iterative reconstruction unit (13) iteratively reconstructs an iterative image of the object from the detection data, wherein a combination unit (14) combines the analytical image and the iterative image for generating a combination image. An iterative image can comprises shading artifacts, which may be caused by preprocessing the detection data before performing the iterative reconstruction. An analytical image shows reduced shading artifacts, in particular, shows no shading artifacts at all. Thus, by combining the analytical image and the iterative image a combination image can be generated, in which the shading artifacts are reduced in comparison to an iterative image, thereby improving the quality of the reconstructed final image of the object of interest.

7. 发明授权

EP2271263B1 SOURCE AND/OR DETECTOR POSITIONING SYSTEM 有权转让
标题翻译：源和/或探测器定位系统
公开(公告)号：EP2271263B1
公开(公告)日：2011-11-30
申请号：EP09738543.9
申请日：2009-04-30
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： THRAN, Axel , BONTUS, Claas , FORTHMANN, Peter , PROKSA, Roland , SHARPLESS, Ronald, B. , HEUSCHER, Dominic, J. , PEETERS, Felix , SOETENS, Johannes, Bathazar, Maria
IPC分类号： A61B6/03
CPC分类号： A61B6/4447 , A61B6/06 , A61B6/4021
摘要： A medical imaging system includes a generally stationary gantry (102) and a rotating gantry (106), rotatably supported by the generally stationary gantry (102), that rotates about a longitudinal axis around an examination region. The medical imaging system further includes a radiation source (112) that emits a radiation beam that traverses the examination region. The radiation source (112) is moveably affixed to the rotating gantry (106) so as to translate in a direction of the longitudinal axis with respect to the rotating gantry (106) while scanning a subject in the examination region. The medical imaging system further includes a detector array (120) that detects the radiation beam that traverses the examination region and generates a signal indicative thereof. The detector array (120) is moveably affixed to the rotating gantry (106) so as to move in coordination with the radiation source (112) while scanning the subject in the examination region.

8. 发明公开

EP2271263A1 SOURCE AND/OR DETECTOR POSITIONING SYSTEM 有权转让
标题翻译：源和/或探测器定位系统
公开(公告)号：EP2271263A1
公开(公告)日：2011-01-12
申请号：EP09738543.9
申请日：2009-04-30
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： THRAN, Axel , BONTUS, Claas , FORTHMANN, Peter , PROKSA, Roland , SHARPLESS, Ronald, B. , HEUSCHER, Dominic, J. , PEETERS, Felix , SOETENS, Johannes, Bathazar, Maria
IPC分类号： A61B6/03
CPC分类号： A61B6/4447 , A61B6/06 , A61B6/4021
摘要： A medical imaging system includes a generally stationary gantry (102) and a rotating gantry (106), rotatably supported by the generally stationary gantry (102), that rotates about a longitudinal axis around an examination region. The medical imaging system further includes a radiation source (112) that emits a radiation beam that traverses the examination region. The radiation source (112) is moveably affixed to the rotating gantry (106) so as to translate in a direction of the longitudinal axis with respect to the rotating gantry (106) while scanning a subject in the examination region. The medical imaging system further includes a detector array (120) that detects the radiation beam that traverses the examination region and generates a signal indicative thereof. The detector array (120) is moveably affixed to the rotating gantry (106) so as to move in coordination with the radiation source (112) while scanning the subject in the examination region.
摘要翻译：医学成像系统包括由大体上固定的机架（102）可旋转地支撑的大致静止的机架（102）和旋转机架（106），其绕着围绕检查区域的纵向轴线旋转。医学成像系统还包括发射穿过检查区域的辐射束的辐射源（112）。辐射源（112）可移动地固定到旋转机架（106），以便在扫描检查区域中的对象的同时相对于旋转机架（106）沿纵向轴线的方向平移。医学成像系统还包括探测器阵列（120），探测器阵列（120）检测穿过检查区域并产生指示其的信号的辐射束。检测器阵列（120）可移动地固定到旋转机架（106），以便在扫描检查区域中的对象的同时与辐射源（112）协调地移动。

9. 发明授权

EP2102871B1 BEAM FILTER, PARTICULARLY FOR X-RAYS, THAT DOES NOT CHANGE THE BEAM'S SPECTRAL COMPOSITION 有权
标题翻译：辐射的光谱组成辐射FILTER没有改变
公开(公告)号：EP2102871B1
公开(公告)日：2011-01-12
申请号：EP07827089.9
申请日：2007-11-30
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： THRAN, Axel , SCHLOMKA, Jens-Peter
IPC分类号： G21K1/02 , G21K1/10
CPC分类号： G21K1/02 , G21K1/10
摘要： The invention relates to a beam filter (10) that can particularly be used in spectral CT-applications for producing a desired intensity profile of a radiation beam without changing its spectral composition. In a preferred embodiment, the beam filter (10) comprises a stack of absorbing sheets (111) that are separated by wedge-shaped spaces (112) and focused to a radiation source (1). Furthermore, the absorbing sheets have a varying width in direct ion of the radiation. Different fractions of the radiation source (1) area are therefore masked by the beam filter (10) at different points (A, B) on a detector area (2). The absorbing sheets preferably comprise a material that is highly absorbing for the radiation to be filtered.

10. 发明公开

EP2234541A1 STEREO TUBE ATTENUATION FILTER 有权转让
标题翻译： STEREO TUBE阻尼FILTER
公开(公告)号：EP2234541A1
公开(公告)日：2010-10-06
申请号：EP08869040.9
申请日：2008-12-12
申请人： Koninklijke Philips Electronics N.V. , Philips Intellectual Property & Standards GmbH
发明人： FORTHMANN, Peter , PROKSA, Roland , THRAN, Axel
IPC分类号： A61B6/03 , G21K1/10
CPC分类号： H01J35/10 , A61B6/027 , A61B6/032 , A61B6/4007 , A61B6/4014 , A61B6/4021 , A61B6/4028 , A61B6/4035 , A61B6/4266 , G21K1/10 , H01J35/26 , H01J2235/068 , H01J2235/086
摘要： A computed tomography apparatus (10) includes spaced radiation sources (82, 84), such as anodes, which each propagate a cone -beam of radiation (40, 50) into an examination region (14). A detector (22) detects radiation which has passed through the examination region. An attenuation system (55) interposed between the radiation sources and the examination region for cone-angle dependent filtering of the cone beams. The attenuation system allows rays which contribute little to a reconstructed image to be attenuated more than rays which contribute more.

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