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公开(公告)号：US20100099976A1
公开(公告)日：2010-04-22
申请号：US12527204
申请日：2008-02-15
CPC分类号： G01T1/185 , A61B6/037 , G01T1/1642 , G01T1/204
摘要： A medium area (S) filled with liquid xenon (2) is formed between an external cylindrical body (1a) and internal cylindrical body (1b), and a pair of anode pads (11, 12) are disposed in two-dimensional form in opposite end portions of the medium area (S) in the intersection direction with respect to the gamma-ray incident direction. An intermediate electrode (10) is disposed between a pair of anode pads (11, 12), and a plurality of photomultiplier tubes (5) is installed in two-dimensional form in the external cylindrical body (1a). Then, the gamma-ray reaction point within the liquid area (S) is identified from signals output from the anode pads (11, 12) and photomultiplier tubes (5).
摘要翻译： 在外筒体（1a）和内筒体（1b）之间形成有填充有液氙（2）的介质区域（S），并且一对阳极垫片（11,12）以二维形式设置在 介质区域（S）的相对于伽马射线入射方向的交叉方向的相对端部。 中间电极（10）设置在一对阳极焊盘（11,12）之间，多个光电倍增管（5）以二维形式安装在外筒体（1a）中。 然后，从从阳极焊盘（11,12）和光电倍增管（5）输出的信号来识别液体区域（S）内的伽马射线反应点。
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公开(公告)号：US4352018A
公开(公告)日：1982-09-28
申请号：US133895
申请日：1980-03-25
申请人： Eiichi Tanaka , Norimasa Nohara , Takehiro Tomitani , Mikio Yamamoto , Kenji Ishimatsu , Katsumi Takami
发明人： Eiichi Tanaka , Norimasa Nohara , Takehiro Tomitani , Mikio Yamamoto , Kenji Ishimatsu , Katsumi Takami
CPC分类号： G01T1/2985 , A61B6/037
摘要： An apparatus for effecting positron emission computed tomography comprises rows of a plurality of arrays of detectors arranged rotatably around a center of rotation in such way that at least one of the detectors in each array is disposed at an irregular position relative to the rest of detectors in the array, and that, for each revolution of the row through an angle of 360.degree./n (wherein: n represents an odd number of 3 or larger), each array of detectors will assume exactly the position occupied by its adjacent array till the revolution takes place.
摘要翻译： 用于实现正电子发射计算机断层摄影的装置包括多个检测器阵列的行，所述检测器阵列围绕旋转中心旋转，使得每个阵列中的至少一个检测器相对于其余检测器设置在不规则位置 阵列，并且对于360°/ n的角度（其中：n表示奇数为3或更大），行的每次旋转，每个检测器阵列将准确地假定其相邻阵列占据的位置，直到 革命发生。
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公开(公告)号：US08384040B2
公开(公告)日：2013-02-26
申请号：US12527204
申请日：2008-02-15
IPC分类号： G01T1/20
CPC分类号： G01T1/185 , A61B6/037 , G01T1/1642 , G01T1/204
摘要： A medium area (S) filled with liquid xenon (2) is formed between an external cylindrical body (1a) and internal cylindrical body (1b), and a pair of anode pads (11, 12) are disposed in two-dimensional form in opposite end portions of the medium area (S) in the intersection direction with respect to the gamma-ray incident direction. An intermediate electrode (10) is disposed between a pair of anode pads (11, 12), and a plurality of photomultiplier tubes (5) is installed in two-dimensional form in the external cylindrical body (1a). Then, the gamma-ray reaction point within the liquid area (S) is identified from signals output from the anode pads (11, 12) and photomultiplier tubes (5).
摘要翻译： 在外筒体（1a）和内筒体（1b）之间形成有填充有液氙（2）的介质区域（S），并且一对阳极垫片（11,12）以二维形式设置在 介质区域（S）的相对于伽马射线入射方向的交叉方向的相对端部。 中间电极（10）设置在一对阳极焊盘（11,12）之间，多个光电倍增管（5）以二维形式安装在外筒体（1a）中。 然后，从从阳极焊盘（11,12）和光电倍增管（5）输出的信号来识别液体区域（S）内的伽马射线反应点。
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公开(公告)号：US4426699A
公开(公告)日：1984-01-17
申请号：US125572
申请日：1980-02-28
CPC分类号： H03K19/21
摘要： A plurality of input signals are applied to input terminals of first and second priority encoders according to the order of priority in ascending and descending orders, respectively. The encoded output signals of the first and second priority encoders are exclusive-ORed for each corresponding pair of significant bits. A single event detection is executed only if exclusive OR is effected for all the corresponding pairs of significant bits.
摘要翻译： 多个输入信号分别按照升序和降序的优先级顺序施加到第一和第二优先级编码器的输入端。 第一和第二优先级编码器的编码输出信号对于每对相应的有效位对进行异或运算。 仅当对所有相应的有效位对进行异或运算时才执行单个事件检测。
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公开(公告)号：US4309611A
公开(公告)日：1982-01-05
申请号：US109252
申请日：1980-01-03
CPC分类号： G01T1/2985 , A61B6/037
摘要： A scanner for positron emission computed tomography comprising a rotary member rotatable within the plane of a slice about an axis lying perpendicular to this plane and having means for accommodating a subject for examination, a drive means for rotating this rotary member within the plane of slice, and a plurality of radiation detectors provided on the rotary member so as to substantially face each other relative to the subject to be examined, in which the radiation detectors are disposed so that at least some of them are either positioned with irregular spacing relative to each other, or positioned at irregular distances from the axis of rotation.
摘要翻译： 一种用于正电子发射计算机断层摄影的扫描器，包括旋转部件，该旋转部件可在片的平面内围绕垂直于该平面的轴线旋转，并具有用于容纳被检体的检查装置，用于在切片平面内旋转该旋转部件的驱动装置， 以及设置在所述旋转构件上的多个辐射检测器，以便相对于待检查对象基本上彼此面对，其中设置所述辐射检测器，使得所述辐射检测器中的至少一些相对于彼此以不规则的间隔定位 ，或者定位在与旋转轴线不规则的距离处。
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公开(公告)号：US4321474A
公开(公告)日：1982-03-23
申请号：US105925
申请日：1979-12-21
IPC分类号： H04B10/11 , H04B10/00 , H04B10/114 , H04B10/524 , H04B10/80 , G02B27/00
CPC分类号： H04B10/801
摘要： An apparatus for optically transmitting signals from a rotatable body to a stationary side or vice versa in a non-contact manner, includes a plurality of light emitting elements excited by a PCM signal from a signal source and a plurality of light receiving elements disposed in opposition with the light emitting elements for receiving light therefrom. A plurality of sets each including plural light receiving or emitting elements are provided at the stationary side in association with the respective light emitting or receiving elements disposed at the rotatable body side. Alternatively, a plurality of sets each including plural light emitting elements are provided at the rotatable body side in association with the respective light receiving elements disposed at the stationary side. The elements in such plural sets are selected in accordance with the rotation of the rotatable body.
摘要翻译： 一种用于以非接触方式将信号从可旋转体光学传输到静止侧或反之亦然的装置包括由来自信号源的PCM信号激励的多个发光元件和以对置方式设置的多个光接收元件 其中用于从其接收光的发光元件。 与设置在可旋转体侧的各个发光或接收元件相关联地，在固定侧设置有多个包含多个光接收或发光元件的组。 或者，与设置在固定侧的各个光接收元件相关联地，在可旋转体侧设置多个包括多个发光元件的组。 这些多组中的元件根据可旋转体的旋转来选择。
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7.发明授权
公开(公告)号：US4186307A
公开(公告)日：1980-01-29
申请号：US828811
申请日：1977-08-29
CPC分类号： G01T1/20
摘要： A scintillation type radiation-measuring apparatus comprising a radiation-detecting scintillator, wherein a scintillation given off from the scintillator is converted into current by a photomultiplier tube; a current amplifier generates a plurality of pulses each proportional to the intensity of said converted current; the pulses have the width clipped by a clipped pulse generating circuit; the clipped form of the pulses is delayed by a delay circuit and integrated by an integrator; the wave height value of the outputs from the integrator is sampled by a sampling circuit to provide a sampled output; and means are provided to supply instructions to start and reset the operation of the integrator and to commence the operation of the sampling circuit in accordance with the interval between successively detected current pulses.
摘要翻译： 一种闪烁型辐射测量装置，包括放射线检测闪烁器，其中从闪烁体发出的闪烁由光电倍增管转换成电流; 电流放大器产生与所述转换电流的强度成比例的多个脉冲; 脉冲具有被限制脉冲发生电路限幅的宽度; 脉冲的限制形式被延迟电路延迟并由积分器集成; 来自积分器的输出的波高值由采样电路采样以提供采样输出; 并且提供装置以提供指令以启动和复位积分器的操作，并且根据连续检测的电流脉冲之间的间隔开始采样电路的操作。
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