公开(公告)号：DE602007011985D1

公开(公告)日：2011-02-24

申请号：DE602007011985

申请日：2007-11-30

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： THRAN AXEL ,  SCHLOMKA JENS-PETER

IPC: G21K1/02 ,  G21K1/10

公开(公告)号：DE602005002257T2

公开(公告)日：2008-05-29

申请号：DE602005002257

申请日：2005-03-31

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： BARSCHORF HANS ,  DAVID BERND R ,  THRAN AXEL

IPC: H01J35/08

Abstract: 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).

公开(公告)号：DE602005002257D1

公开(公告)日：2007-10-11

申请号：DE602005002257

申请日：2005-03-31

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： BARSCHORF HANS ,  DAVID BERND R ,  THRAN AXEL

IPC: H01J35/08

Abstract: 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).

公开(公告)号：WO2013084106A3

公开(公告)日：2013-11-21

申请号：PCT/IB2012056684

申请日：2012-11-23

Applicant: KONINKL PHILIPS NV ,  PHILIPS INTELLECTUAL PROPERTY

Inventor： RONDA CORNELIS REINDER ,  PROKSA ROLAND ,  THRAN AXEL

IPC: G01T1/20 ,  G01T1/202

CPC classification number: G01T1/2002 ,  G01N23/04 ,  G01T1/2006 ,  G01T1/2018 ,  G01T1/202

Abstract: The invention relates to a detection apparatus for detecting radiation. The detection apparatus comprises a GOS material (20) for generating scintillation light depending on the detected radiation (25), an optical filter (24) for reducing the intensity of a part of the scintillation light having a wavelength being larger than 650 nm, and a detection unit (21) for detecting the filtered scintillation light. Because of the filtering procedure relatively slow components, i.e. components corresponding to a relatively large decay time, of the scintillation light weakly constribute to the detection process or are not detected at all by the detection unit, thereby increasing the temporal resolution of the detection apparatus. The resulting fast detection apparatus can be suitable for kVp-switching computed tomography systems.

Abstract translation: 本发明涉及一种用于检测辐射的检测装置。 检测装置包括用于根据检测到的辐射（25）产生闪烁光的GOS材料（20），用于降低波长大于650nm的闪烁光的一部分的强度的滤光器（24），以及 用于检测滤波的闪烁光的检测单元（21）。 由于滤波过程，相对较慢的分量，即对应于较大衰减时间的分量，闪烁光弱地对于检测处理有贡献，或者根本不被检测单元检测，从而增加了检测装置的时间分辨率。 所得到的快速检测装置可适用于kVp切换计算机断层摄影系统。

公开(公告)号：WO2013080104A2

公开(公告)日：2013-06-06

申请号：PCT/IB2012056663

申请日：2012-11-23

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY

Inventor： ROESSL EWALD ,  THRAN AXEL ,  PROKSA ROLAND

CPC classification number: G01T1/20 ,  G01T1/2008

Abstract: Detection apparatus for detecting radiation The invention relates to a detection apparatus for detecting radiation. The detection apparatus comprises at least two scintillators (14, 15) having different temporal behaviors, each generating scintillation light upon reception of radiation, wherein the generated scintillation light is commonly detected by a scintillation light detection unit (16), thereby generating a common light detection signal. A detection values determining unit determines first detection values by applying a first determination process and second detection values by applying a second determination process, which is different to the first determination process, on the detection signal. The first determination process includes frequency filtering the detection signal. Since the scintillation light of the different scintilla- tors is collectively detected by the same scintillation light detection unit, detection arrangements with, for example, side-looking photodiodes for separately detecting the different scintillation light of the different scintillators are not necessarily required, thereby reducing the technical complexity of the detection apparatus.

Abstract translation: 用于检测辐射的检测装置技术领域本发明涉及一种用于检测辐射的检测装置。 检测装置包括具有不同时间行为的至少两个闪烁体（14,15），每个闪烁体在接收到辐射时产生闪烁光，其中所产生的闪烁光通常由闪烁光检测单元（16）检测，从而产生公共光 检测信号。 检测值确定单元通过对检测信号应用与第一确定处理不同的第二确定处理来应用第一确定处理和第二检测值来确定第一检测值。 第一确定处理包括对检测信号进行频率滤波。 由于不同的闪烁体的闪烁光被同一个闪烁光检测单元共同检测，所以不一定需要与用于分别检测不同的闪烁体的不同的闪烁光的例如侧视光电二极管的检测装置，从而减少 检测装置的技术复杂性。

公开(公告)号：WO2008018021A3

公开(公告)日：2008-08-14

申请号：PCT/IB2007053111

申请日：2007-08-07

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  SCHLOMKA JENS-PETER ,  THRAN AXEL

Inventor： SCHLOMKA JENS-PETER ,  THRAN AXEL

IPC: G01V5/00 ,  G01T1/164

CPC classification number: G01V5/0025 ,  G01T1/1644 ,  G01V5/005

Abstract: 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.

Abstract translation: 根据示例性实施例，用于检查被检查物体的成像系统（100）包括扫描单元，其中所述扫描单元包括辐射源（106,108）和检测单元（107,109），其中所述扫描单元 适于发射辐射束（123），该辐射束遵循检查对象的线性运动，使得被检查对象的被检查物体的预定区域被扫描，同时被检查物体移动。

公开(公告)号：WO2007039876A3

公开(公告)日：2007-08-09

申请号：PCT/IB2006053630

申请日：2006-10-04

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  SCHLOMKA JENS-PETER ,  VAN STEVENDAAL UDO ,  THRAN AXEL ,  GREWER RUEDIGER

Inventor： SCHLOMKA JENS-PETER ,  VAN STEVENDAAL UDO ,  THRAN AXEL ,  GREWER RUEDIGER

IPC: G01N5/00

CPC classification number: G01V5/0025 ,  G01V5/005

Abstract: 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.

Abstract translation: CT图像可以在一次旋转中获取，而CSCT图像采集可能需要几次旋转。 根据本发明的示例性实施例，可以提供一种CT / CSCT设备，其使用在第一次旋转期间获取的CT数据来优化随后旋转的采集参数。 此外，用预扫描器获取的投影数据也可用于确定当前的调制或为后续CSCT扫描设置最佳电压。

公开(公告)号：WO2012095713A9

公开(公告)日：2013-05-23

申请号：PCT/IB2011056004

申请日：2011-12-29

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  ROESSL EWALD ,  KOEHLER THOMAS ,  THRAN AXEL

Inventor： ROESSL EWALD ,  KOEHLER THOMAS ,  THRAN AXEL

IPC: G06T11/00

CPC classification number: G06T11/003 ,  G06T11/006 ,  G06T2211/408 ,  G06T2211/424

Abstract: The invention relates to an imaging system (30) for imaging an object. A projection data providing unit (31) provides acquired spectral projection data of an object comprising at least two components, and a reconstruction unit (10) iteratively reconstructs at least two final component images of the object by performing several iteration steps, in which at least two intermediate component images are updated based on the acquired spectral projection data and a penalty term, which is indicative of the correlated noise between the at least two intermediate component images. Since the at least two intermediate component images are updated based on the acquired spectral projection data and a penalty term, which is indicative of the correlated noise, correlated noise is penalized during the iterative reconstruction. The finally resulting component images of the object are therefore less corrupted by correlated noise and have an improved image quality.

Abstract translation: 本发明涉及一种用于对物体成像的成像系统（30）。 投影数据提供单元（31）提供包括至少两个分量的对象的获取的光谱投影数据，并且重建单元（10）通过执行几个迭代步骤来迭代地重构对象的至少两个最终分量图像，其中至少 基于所获取的光谱投影数据和惩罚项来更新两个中间分量图像，所述惩罚项指示所述至少两个中间分量图像之间的相关噪声。 由于基于所获取的频谱投影数据和指示相关噪声的罚分项来更新至少两个中间分量图像，所以在迭代重建期间相关噪声被惩罚。 因此，最终产生的对象的分量图像被相关噪声较少损坏并且具有改善的图像质量。

公开(公告)号：WO2009112986A3

公开(公告)日：2009-11-12

申请号：PCT/IB2009050922

申请日：2009-03-06

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  THRAN AXEL ,  ERHARD KLAUS

Inventor： THRAN AXEL ,  ERHARD KLAUS

IPC: H01J35/06 ,  H01J35/14

CPC classification number: H01J35/065 ,  H01J35/14 ,  H01J2235/062 ,  H01J2235/066 ,  H01J2235/068

Abstract: 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.

Abstract translation: 具有能够进行圆形扫描轨迹的旋转阳极X射线管的体系合成系统，其中X射线管1可以配备有分布在阳极周围的大量阴极（21,22）。 这允许在焦点位置（11,12）处产生例如均匀分布在阳极（10）的表面（15）上的例如圆形线（14）上的X射线（41,42）。 物体（61）可以位于阳极的（10）的旋转轴线（6）上，距离源极距离一定距离。 为了进行检查，物体（61）可以暴露于在所有焦斑位置（11,12）上连续生成的X射线束（41,42），其中不需要X射线管1的移动。 透射的X射线强度可以由平板检测器（50）测量以实现重构的三维图像数据。

公开(公告)号：WO2008068690A3

公开(公告)日：2008-08-14

申请号：PCT/IB2007054865

申请日：2007-11-30

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  THRAN AXEL ,  SCHLOMKA JENS-PETER

Inventor： THRAN AXEL ,  SCHLOMKA JENS-PETER

IPC: G21K1/02 ,  G21K1/10

CPC classification number: G21K1/02 ,  G21K1/10

Abstract: 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.

Abstract translation: 本发明涉及一种能够特别用于光谱CT应用中的光束滤波器（10），用于产生辐射束的期望强度分布而不改变其光谱组成。 在优选实施例中，束过滤器（10）包括由楔形空间（112）分离并聚焦到辐射源（1）的吸收片（111）的堆叠。 此外，吸收片在辐射的直接离子中具有变化的宽度。 辐射源（1）区域的不同部分因此在检测器区域（2）上的不同点（A，B）处被波束过滤器（10）掩蔽。 吸收片优选地包括对待过滤辐射具有高吸收性的材料。