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1. 发明授权

EP0564292B1 Ring tube CT scanner 失效
标题翻译： CT扫描仪与环形管
公开(公告)号：EP0564292B1
公开(公告)日：1998-12-02
申请号：EP93302599.1
申请日：1993-04-01
申请人： PICKER INTERNATIONAL, INC.
发明人： Brunnett, Carl J. , Mattson, Rodney A. , Burke, James E. , Miller, Lester , Resnick, Theodore A.
IPC分类号： A61B6/03 , G01T1/29 , H05G1/04
CPC分类号： A61B6/035 , A61B6/032 , A61B6/4028 , A61B6/405 , A61B6/4275 , A61B6/4488 , A61B6/482 , A61B6/56 , H01J35/02 , H01J35/06 , H01J35/10 , H01J35/165 , H01J35/24 , H01J2235/162 , H05G1/025 , H05G1/06 , H05G1/08 , H05G1/20 , H05G1/26 , H05G1/34 , H05G1/52 , H05G1/60 , H05G1/66

2. 发明公开

EP0564292A2 Ring tube CT scanner 失效
标题翻译： CT扫描仪mitringförmigerRöhre。
公开(公告)号：EP0564292A2
公开(公告)日：1993-10-06
申请号：EP93302599.1
申请日：1993-04-01
申请人： PICKER INTERNATIONAL, INC.
发明人： Brunnett, Carl J. , Mattson, Rodney A. , Burke, James E. , Miller, Lester , Resnick, Theodore A.
IPC分类号： A61B6/03 , G01T1/29 , H05G1/04
CPC分类号： A61B6/035 , A61B6/032 , A61B6/4028 , A61B6/405 , A61B6/4275 , A61B6/4488 , A61B6/482 , A61B6/56 , H01J35/02 , H01J35/06 , H01J35/10 , H01J35/165 , H01J35/24 , H01J2235/162 , H05G1/025 , H05G1/06 , H05G1/08 , H05G1/20 , H05G1/26 , H05G1/34 , H05G1/52 , H05G1/60 , H05G1/66
摘要： A toroidal x-ray tube (I) is supported (II) for rotation about a horizontal axis (170) , translation along a vertical axis (172) , and translation along a horizontal axis (174) . The x-ray tube includes a toroidal housing (A) , an annular anode (B) , and a cathode (C) which rotates a beam of electrons around the annular anode. A plurality of parallel connected voltage sources (90₁, 90₂, ..., 90 n ) provide a sufficiently high bias voltage between the electron source and the anode that x-rays are generated. The x-ray beam passes through a compensator crystal (62) , an annular window (20) , a collimator (132) , through a subject received in a central bore (26) of the x-ray tube, and impacts an arc segment of radiation detectors (130) . The x-ray detectors are stationarily mounted outside of the plane of the annular window (FIGURES 2 and 7), nutate into the plane of the windows opposite of the origin of the x-ray beam (FIGURE 6), rotate in part (FIGURE 9) or rotate in full (FIGURE 8). Angular position monitors (58, 154) determine the angular position of the cathode assembly, hence the x-ray beam, and the angular position of the detectors in the rotating detector embodiment.
摘要翻译：环形X射线管（I）被支撑（II），用于围绕水平轴线（170）旋转，沿着垂直轴线（172）平移并且沿着水平轴线（174）平移。 X射线管包括使环形阳极周围的电子束旋转的环形壳体（A），环形阳极（B）和阴极（C）。多个并联的电压源（901,902，...，90n）在产生x射线的电子源和阳极之间提供足够高的偏置电压。 x射线束穿过受体在X射线管的中心孔（26）中的受试者通过补偿晶体（62），环形窗（20），准直器（132），并撞击弧段的辐射探测器（130）。 x射线探测器固定安装在环形窗的平面外面（图2和7），并形成与X射线束原点相反的窗口平面（图6），部分旋转 9）或完全旋转（图8）。角位置监视器（58,154）确定阴极组件的角度位置，因此确定旋转探测器实施例中的X射线束和检测器的角位置。

3. 发明公开

EP0980196A2 X-ray radiation stabilization 有权
标题翻译： Röntgenstrahlungsstabilisierung
公开(公告)号：EP0980196A2
公开(公告)日：2000-02-16
申请号：EP99305708.2
申请日：1999-07-20
申请人： PICKER INTERNATIONAL, INC.
发明人： Resnick, Theodore A. , Mattson, Rodney A.
IPC分类号： H05G1/32
CPC分类号： H05G1/32
摘要： An x-ray radiation stabilization system is provided including an x-ray tube (20) which emits x-ray radiation (22) . The x-ray tube (20) has an anode (52) , a cathode (50) , and a vacuum envelope (54) which houses the anode (52) and the cathode (50) . A high-voltage generator (40) is connected to the x-ray tube (20) . It supplies a high-voltage electric potential between the cathode (50) and anode (52) such that an electron beam flows therebetween. The electron beam strikes the anode (52) producing the x-ray radiation (22) . A reference radiation detector (60) samples a representative portion of the x-ray radiation (22) emitted by the x-ray tube (20) and generates a signal in response to an intensity of the sampled x-ray radiation (22) . A feedback circuit (80) is connected between the reference radiation detector (60) and the high-voltage generator (40) . The feedback circuit (80) generates an error signal and in response thereto directs the high-voltage generator (40) to adjust the high-voltage electric potential supplied to the x-ray tube (20) so that in the x-ray radiation (22) ripple having a predetermined frequency range is substantially cancelled.
摘要翻译：提供了包括发射x射线辐射（22）的X射线管（20）的X射线辐射稳定系统。 x射线管（20）具有阳极（52），阴极（50）和容纳阳极（52）和阴极（50）的真空外壳（54）。高压发生器（40）连接到X射线管（20）。它在阴极（50）和阳极（52）之间提供高电压电位，使得电子束在其间流动。电子束撞击产生X射线辐射（22）的阳极（52）。参考辐射检测器（60）对由x射线管（20）发射的x射线辐射（22）的代表部分进行采样，并响应于采样的X射线辐射（22）的强度产生信号。反馈电路（80）连接在参考辐射检测器（60）和高压发生器（40）之间。反馈电路（80）产生误差信号，响应于此引导高电压发生器（40）调节提供给X射线管（20）的高压电位，使得在x射线辐射（ 22）具有预定频率范围的波动基本上被取消。

4. 发明授权

EP0676911B1 X-ray tubes for CT scanners 失效
标题翻译： X射线管用于计算机断层摄影扫描仪
公开(公告)号：EP0676911B1
公开(公告)日：2000-09-20
申请号：EP95301500.5
申请日：1995-03-08
申请人： PICKER INTERNATIONAL, INC.
发明人： Mattson, Rodney A. , Resnick, Theodore A.
IPC分类号： H05G1/04 , H05G1/26 , H05G1/36 , H05G1/44 , H01J35/24 , A61B6/03
CPC分类号： A61B6/4488 , A61B6/4028 , A61B6/56 , H01J35/24 , H05G1/04 , H05G1/26 , H05G1/32 , H05G1/64

5. 发明公开

EP0676911A1 X-ray tubes for CT scanners 失效
标题翻译： RöntgenröhrenfürrechnergestützteTomographie-Abtaster。
公开(公告)号：EP0676911A1
公开(公告)日：1995-10-11
申请号：EP95301500.5
申请日：1995-03-08
申请人： PICKER INTERNATIONAL, INC.
发明人： Mattson, Rodney A. , Resnick, Theodore A.
IPC分类号： H05G1/04 , H05G1/26 , H05G1/36 , H05G1/44 , H01J35/24 , A61B6/03
CPC分类号： A61B6/4488 , A61B6/4028 , A61B6/56 , H01J35/24 , H05G1/04 , H05G1/26 , H05G1/32 , H05G1/64
摘要： A toroidal x-ray tube (I) is supported and selectively positioned by a CT gantry (II). The x-ray tube includes a toroidal housing (A) in which a rotor (30) is rotatably mounted. One or more cathodes (C) are mounted on the rotor for generating an electron beam which strikes an anode (B) to generate a beam of x-rays which passes through a window (20) and strikes an annular ring of detectors (160). A grid bias control circuit (100) selectively applies a continuously adjustable bias to a grid (32) for regulating the electron current, and hence the intensity of the x-ray beam. A scintillating optical fibre (110) extends around the exterior of the window. The scintillation optical fibre includes fluorescent dopant (116) which converts a very small fraction of the x-rays into light which is transmitted along the fibre to an optoelectric transducer (118). The opto-electric transducer is connected with the grid bias control circuit. The opto-electrical transducer (118) can also be connected with an intensity compensator (162) for adjusting the signals from the detector ring before they are reconstructed (164) into an image representation.
摘要翻译：环形X射线管（I）由CT龙门架（II）支撑并选择性定位。 X射线管包括环形壳体（A），转子（30）可旋转地安装在壳体中。一个或多个阴极（C）安装在转子上以产生撞击阳极（B）的电子束，以产生穿过窗口（20）并撞击检测器（160）的环形环的X射线束，。栅极偏置控制电路（100）选择性地向网格（32）施加连续可调的偏压，用于调节电子电流，并因此调节X射线束的强度。闪烁的光纤（110）围绕窗户的外部延伸。闪烁光纤包括荧光掺杂剂（116），其将非常小部分的X射线转换成沿着光纤传输到光电换能器（118）的光。光电传感器与电网偏置控制电路连接。光电换能器（118）也可以与强度补偿器（162）连接，用于在检测器环被重构（164）之前调整来自检测器环的信号（164）成为图像表示。

6. 发明公开

EP0564292A3 Ring tube CT scanner 失效
标题翻译：环形CT扫描仪
公开(公告)号：EP0564292A3
公开(公告)日：1995-03-15
申请号：EP93302599.1
申请日：1993-04-01
申请人： PICKER INTERNATIONAL, INC.
发明人： Brunnett, Carl J. , Mattson, Rodney A. , Burke, James E. , Miller, Lester , Resnick, Theodore A.
IPC分类号： A61B6/03 , G01T1/29 , H05G1/04
CPC分类号： A61B6/035 , A61B6/032 , A61B6/4028 , A61B6/405 , A61B6/4275 , A61B6/4488 , A61B6/482 , A61B6/56 , H01J35/02 , H01J35/06 , H01J35/10 , H01J35/165 , H01J35/24 , H01J2235/162 , H05G1/025 , H05G1/06 , H05G1/08 , H05G1/20 , H05G1/26 , H05G1/34 , H05G1/52 , H05G1/60 , H05G1/66
摘要： A toroidal x-ray tube (I) is supported (II) for rotation about a horizontal axis (170) , translation along a vertical axis (172) , and translation along a horizontal axis (174) . The x-ray tube includes a toroidal housing (A) , an annular anode (B) , and a cathode (C) which rotates a beam of electrons around the annular anode. A plurality of parallel connected voltage sources (90₁, 90₂, ..., 90 n ) provide a sufficiently high bias voltage between the electron source and the anode that x-rays are generated. The x-ray beam passes through a compensator crystal (62) , an annular window (20) , a collimator (132) , through a subject received in a central bore (26) of the x-ray tube, and impacts an arc segment of radiation detectors (130) . The x-ray detectors are stationarily mounted outside of the plane of the annular window (FIGURES 2 and 7), nutate into the plane of the windows opposite of the origin of the x-ray beam (FIGURE 6), rotate in part (FIGURE 9) or rotate in full (FIGURE 8). Angular position monitors (58, 154) determine the angular position of the cathode assembly, hence the x-ray beam, and the angular position of the detectors in the rotating detector embodiment.

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