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1. 发明申请

WO2009127995A1 X-RAY TUBE WITH PASSIVE ION COLLECTING ELECTRODE 审中-公开
标题翻译： X射线管与被动离子收集电极
公开(公告)号：WO2009127995A1
公开(公告)日：2009-10-22
申请号：PCT/IB2009/051455
申请日：2009-04-07
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , BEHLING, Rolf, K. O. , HAUTTMANN, Stefan
发明人： BEHLING, Rolf, K. O. , HAUTTMANN, Stefan
IPC分类号： H01J35/16
CPC分类号： H01J35/16 , H01J2235/168 , H01J2235/205
摘要： An X-ray tube (1) comprising a cathode (3), an anode (5) and a further electrode (7) is proposed. Therein, the further electrode is arranged and adapted such that, due to impact of 'free electrons (27) coming from the anode (5), the further electrode (7) negatively charges to an electrical potential lying between a cathode's potential and an anode's potential. The further electrode (7) may be passive, i.e. substantially electrically isolated and not connected to an active external voltage supply. The further electrode (7) may act as an ion pump removing ions from within a primary electron beam (21) and furthermore also removing atoms of residual gas within the housing (11) of the X-ray tube (1). In order to further increase the ion pumping capability of the further electrode (7), a magnetic field generator (61) can be arranged adjacent to the further electrode (7).
摘要翻译：提出了包括阴极（3），阳极（5）和另外的电极（7）的X射线管（1）。其中，另外的电极被布置和适配成使得由于来自阳极（5）的自由电子（27）的冲击，另外的电极（7）负电荷到位于阴极电位和阳极潜在。另外的电极（7）可以是无源的，即基本上电隔离并且不连接到有源外部电压源。另外的电极（7）可以用作从一次电子束（21）内去除离子的离子泵，并且还去除X射线管（1）的壳体（11）内的残余气体的原子。为了进一步增加另一电极（7）的离子泵送能力，可以将磁场发生器（61）布置成与另外的电极（7）相邻。

2. 发明申请

WO2010061332A1 AUXILIARY GRID ELECTRODE FOR X-RAY TUBES 审中-公开
标题翻译：用于X射线管的辅助电极
公开(公告)号：WO2010061332A1
公开(公告)日：2010-06-03
申请号：PCT/IB2009/055282
申请日：2009-11-23
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , BEHLING, Rolf, K. O.
发明人： BEHLING, Rolf, K. O.
IPC分类号： H01J35/14 , H01J35/04
CPC分类号： H01J35/14 , H01J35/04 , H01J35/045 , H01J35/26 , H01J2235/06
摘要： The present invention refers to an X-ray tube of the rotary-anode type which comprises at least one temporarily negatively biased auxiliary grid electrode (1 19) with an aperture through which an electron beam (115) emitted by a tube cathode's thermoionic electron emitter (111) can pass. As an alternative thereto, the auxiliary grid electrode (119) may also be positively biased so as to enhance electron emission from a thermoionic electron emitter (111). The auxiliary grid electrode may thereby be connected to a supply voltage U AUX of a controllable voltage supply unit by means of a feedthrough cable (120) serving as a feeding line for providing the main control grid (112) with a grid supply voltage U G.
摘要翻译：本发明涉及一种旋转阳极型X射线管，其包括至少一个具有孔的暂时负偏置的辅助栅电极（119），电子束（115）由管阴极的热离子电子发射器（111）可以通过。作为替代方案，辅助栅电极（119）也可以被正偏置，以便增强来自热电子发射体（111）的电子发射。因此，辅助栅电极可以借助于作为馈电线的馈通电缆（120）连接到可控电压供应单元的电源电压UAUX，用于向主控电网（112）提供电网电源电压UG。

3. 发明申请

WO2011039662A1 BALANCING OF THE ROTARY ANODE OF AN X-RAY TUBE 审中-公开
标题翻译： X射线管的旋转阳极的平衡
公开(公告)号：WO2011039662A1
公开(公告)日：2011-04-07
申请号：PCT/IB2010/054038
申请日：2010-09-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , BEHLING, Rolf, K. O. , BATHE, Christoph
发明人： BEHLING, Rolf, K. O. , BATHE, Christoph
IPC分类号： H01J35/10 , G01M1/36
CPC分类号： H01J35/10 , G01M1/365 , H01J2235/1093
摘要： The invention relates to an X-ray tube (12) with a rotatable anode (30) for generating X-rays and an X-ray apparatus (10) with such an X-ray tube and a method for balancing a rotary anode of an X-ray tube. In order to provide a balancing of the rotary anode applicable to an anode mounted inside an X-ray tube, an X-ray tube with a rotatable anode (30) for generating X-rays is provided, wherein the anode comprises an anode disc (32) fixedly mounted to a rotatably driven support body (44, 46), which support body is rotatably supported by a bearing arrangement (34). The anode comprises at least one balancing cavity (70) to adjust the center of gravity of the anode, which balancing cavity (70) is partly filled with a balancing material (72) being solid at operating temperature of the X-ray tube and liquid at a higher temperature. Further, a method for balancing a rotary anode of an X-ray tube is provided, comprising the following steps: a) determining an imbalance of the anode; b) heating up a balancing material which is arranged inside at least one balancing cavity, which balancing material is solid at operating temperature of the X-ray tube and liquid at a higher temperature, such that the balancing material becomes liquid; c) dislocating at least a part of the balancing material inside the balancing cavity such that the imbalance of the anode is at least partially compensated; and d) cooling the balancing material, such that the balancing material becomes solid.
摘要翻译：本发明涉及具有用于产生X射线的可旋转阳极（30）和具有这种X射线管的X射线装置（10）的X射线管（12）和用于平衡 X光管。为了提供适用于安装在X射线管内的阳极的旋转阳极的平衡，提供了具有用于产生X射线的可旋转阳极（30）的X射线管，其中阳极包括阳极盘 32），其固定地安装到可旋转地驱动的支撑体（44,46）上，所述支撑体由轴承装置（34）可旋转地支撑。阳极包括至少一个平衡腔（70）以调节阳极的重心，该平衡腔（70）部分地填充有在X射线管和液体的操作温度下是固体的平衡材料（72）在较高的温度。此外，提供了一种用于平衡X射线管的旋转阳极的方法，包括以下步骤：a）确定阳极的不平衡; b）加热布置在至少一个平衡腔内的平衡材料，所述平衡材料在所述X射线管的操作温度和在较高温度下的液体是固体的，使得所述平衡材料变成液体; c）使所述平衡腔内的所述平衡材料的至少一部分脱位，使得所述阳极的不平衡被至少部分地补偿; 和d）冷却平衡材料，使得平衡材料变得固体。

4. 发明申请

WO2010067260A1 COMPENSATION OF ANODE WOBBLE FOR X-RAY TUBES OF THE ROTARY-ANODE TYPE 审中-公开
标题翻译：旋转阳极型X射线管阳极纤维的补偿
公开(公告)号：WO2010067260A1
公开(公告)日：2010-06-17
申请号：PCT/IB2009/055436
申请日：2009-12-01
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , BEHLING, Rolf, K. O.
发明人： BEHLING, Rolf, K. O.
IPC分类号： H01J35/10 , H01J35/14 , H05G1/30
CPC分类号： H01J35/14 , H01J35/10 , H05G1/30
摘要： The present invention refers to X-ray tubes of the rotary-anode type for generating a fan beam of X-rays. More particularly, the invention is concerned with a system and method for compensating a class of system-related disturbances of the focal spot position FS on a target area AT of the rotating anode RA and particularly for compensating the anode wobble in an X-ray tube XT of the aforementioned type, which occurs as a periodically wobbling inclination angle of the anode disk's rotational plane with respect to an ideal rotational plane (z = 0) which is oriented normal to the rotational axis z of the rotary shaft S on which the anode disk RA is inclinedly mounted due to an inaccuracy during its production process. For this purpose, the electron beam generated by a thermoionic or other type of electron emitter of the tube's cathode C and thus the focal spot position FS on a target area AT of the anode disk's X-ray generating surface (anode target) are steered such that the focal spot FS stays within the plane P CXB of the central X-ray fan beam CXB.
摘要翻译：本发明涉及用于产生X射线扇形光束的旋转阳极型X射线管。更具体地说，本发明涉及用于补偿旋转阳极RA的目标区域AT上的焦点位置FS的系统相关干扰类别的系统和方法，特别是用于补偿X射线管中的阳极摆动 XT，其作为阳极盘的旋转平面相对于理想旋转平面（z = 0）的周期性摆动倾斜角发生，该理想旋转平面（z = 0）垂直于旋转轴S的旋转轴线z，其中阳极磁盘RA在其生产过程中由于不准确而倾斜地安装。为此，由阴极C的热离子或其它类型的电子发射体产生的电子束和阳极盘的X射线产生表面（阳极靶）的目标区域AT上的焦点位置FS被转向焦点FS停留在中央X射线扇形束CXB的平面PCXB内。

5. 发明申请

WO2010018502A1 MULTI-SEGMENT ANODE TARGET FOR AN X-RAY TUBE OF THE ROTARY ANODE TYPE WITH EACH ANODE DISK SEGMENT HAVING ITS OWN ANODE INCLINATION ANGLE WITH RESPECT TO A PLANE NORMAL TO THE ROTATIONAL AXIS OF THE ROTARY ANODE AND X-RAY TUBE COMPRISING A ROTARY ANODE WITH SUCH A MULTI-SEGMENT ANODE TARGET 审中-公开
标题翻译：旋转阳极类型的X射线管的多部分阳极靶与每个阳极盘区有相关的阳极阳极角度相对于旋转阳极和包含旋转ANO的X射线管的旋转轴的平面相对于平面
公开(公告)号：WO2010018502A1
公开(公告)日：2010-02-18
申请号：PCT/IB2009/053448
申请日：2009-08-06
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , BEHLING, Rolf, K. O.
发明人： BEHLING, Rolf, K. O.
IPC分类号： H01J35/10
CPC分类号： H01J35/10 , H01J2235/086
摘要： The present invention refers to X-ray tubes for use in imaging applications with an improved power rating and, more particularly, to a multi-segment anode target (102') for an X-ray based scanner system using an X-ray tube of the rotary anode type, said X-ray tube comprising a rotatably supported essentially disk-shaped rotary anode (102) with an anode target (102') for emitting X-radiation when being exposed to an electron beam (105a) incident on a surface of said anode target (102'), wherein said rotary anode disk (102) is divided into at least two anode disk segments (102a and 102b) with each of said anode disk segments having a conical surface inclined by a distinct acute angle (α) with respect to a plane normal to the rotational axis (103a) of said rotary anode disk (102) and thus having its own focal track width. A control unit for pulsing the electron beam (105a) is provided which is adapted for pulsing the electron beam (105 a) such that the electron beam has a duty cycle which takes on its switched on state only when incident on a selectable anode disk segment (102a or 102b) with an inclination angle (α) from a given angular range or on a anyone from a selectable set of these anode disk segments (102a or 102b). Controlling the electron beam's pulse sequence thereby allows to select the optimal segment of the focal spot track (106b) with the smallest possible inclination angle (α) dependent on the angular size (β) of a desired field of view and helps to achieve a maximum brightness of the focal spot (106) as well as a maximized power rating. An advantage of the invention consists in an enhanced image quality compared to conventional rotary anodes as known from the prior art.
摘要翻译：本发明涉及用于具有改进的额定功率的成像应用的X射线管，更具体地，涉及一种用于基于X射线的扫描仪系统的多段阳极靶（102'），其使用X射线管旋转阳极型，所述X射线管包括可旋转地支撑的基本盘形的旋转阳极（102），阳极靶（102'）当暴露于入射在表面上的电子束（105a）时用于发射X射线的所述阳极靶（102'），其中所述旋转阳极盘（102）被分成至少两个阳极盘段（102a和102b），其中每个所述阳极盘段具有以不同的锐角倾斜的锥形表面）相对于垂直于所述旋转阳极盘（102）的旋转轴线（103a）的平面，并且因此具有其自己的焦点轨迹宽度。提供用于脉冲电子束（105a）的控制单元，其适于脉冲电子束（105a），使得电子束具有占空比，该占空比仅在入选在可选择的阳极盘段（102a或102b），其具有从给定角度范围的倾斜角度（a）或者来自这些阳极盘段（102a或102b）的可选择的任何一个。控制电子束的脉冲序列从而允许以取决于期望视场的角尺寸（ß）的最小可能倾斜角（a）来选择焦点轨迹（106b）的最佳段，并且有助于实现最大焦点（106）的亮度以及最大的额定功率。与现有技术中已知的常规旋转阳极相比，本发明的优点在于增强的图像质量。

6. 发明申请

WO2009136349A2 X-Ray Examination System with Integrated Actuator Means for Performing Translational and/or Rotational Disuplacement Movements of at Least One X-Radiation Emitting Anode's Focal Spot Relative to a Stationary Reference Position and Means for Compensating Resulting Parallel and/or Angular Shifts of the Emitted X-Ray Beams 审中-公开
标题翻译：具有集成执行器装置的X射线检查系统，用于执行相对于固定参考位置和补偿装置的至少一个X射线发射阳极焦点的平移和/或旋转放大运动
公开(公告)号：WO2009136349A2
公开(公告)日：2009-11-12
申请号：PCT/IB2009/051814
申请日：2009-05-04
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , VOGTMEIER, Gereon , PIETIG, Rainer , LEWALTER, Astrid , BEHLING, Rolf K. O.
发明人： VOGTMEIER, Gereon , PIETIG, Rainer , LEWALTER, Astrid , BEHLING, Rolf K. O.
IPC分类号： A61B6/03 , H01J35/24
CPC分类号： H01J35/14 , A61B6/032 , A61B6/4021 , A61B6/4028 , A61B6/4085 , A61B6/4488 , H01J35/26 , H01J35/30
摘要： The present invention refers to X-ray systems for use in high-resolution imaging applications with an improved power rating and, more particularly, to a variety of system configurations for an X-ray based image acquisition system using an X-ray source of the rotary anode type or, alternatively, an array of spatially distributed X-ray sources 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 2D projection data. According to the present invention, each 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, wherein the latter may e.g. be given by a mounting plate (207, 207a or 207b) or an electron beam emitting cathode (201, 201a or 201b) which provides an electron beam (202, 202a or 202b) impinging on said anode. 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：本发明涉及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，更具体地，涉及使用X射线源的基于X射线的图像采集系统的各种系统配置旋转阳极类型或者替代地，以碳纳米管（CNT）技术制造的空间分布的X射线源的阵列，从而允许更高的采样速率，以用于快速移动物体的精确重建所需的所获取CT图像的时间分辨率（例如心肌）从一组获取的2D投影数据中获取。根据本发明，每个X射线源包括至少一个集成致动器单元（206,206'，206a或206b），用于通过移动X射线源的阳极的位置来执行至少一个平移和/或旋转位移（204,204'，204a'或204b'），其中后者可以例如由安装板（207,207a或207b）或电子束发射阴极（201,201a或201b）提供，其提供撞击在所述阳极上的电子束（202,202a或202b）。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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