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1. 发明授权

US4395635A Gamma ray coincidence analysis system 失效
标题翻译：伽马射线符合分析系统
公开(公告)号：US4395635A
公开(公告)日：1983-07-26
申请号：US228681
申请日：1981-01-26
申请人： Walter S. Friauf , Rodney A. Brooks , Victor J. Sank , Horace E. Cascio
发明人： Walter S. Friauf , Rodney A. Brooks , Victor J. Sank , Horace E. Cascio
IPC分类号： G01T1/29 , G01T1/20
CPC分类号： G01T1/2985 , A61B6/037
摘要： A gamma ray coincidence analysis system for a multichannel nuclear imaging device of the type employing scintillation detectors in ring-like arrays, with the detectors arranged in quadrants of the rings. The scintillation detectors in a ring have output circuits including respective timing discriminators and OR gates, and respective energy discriminators providing delayed energy pulses, and wherein timing pulses from the respective quadrants are fed via the OR gates to the inputs of a four-input coincidence detector without any delay except for a small delay internal to the discriminators and the very small delay of the OR gates. The delay of the energy pulses at the energy discriminators is for an energy validation period of 500 nsec. The output pulse from the coincidence detector is subsequently delayed for a similar period for verification of the energy levels of the two channels causing the coincidence. A data output signal is generated responsive to the concurrence of the delayed coincidence signal and the delayed energy verification pulses.
摘要翻译：一种用于使用环状阵列中的闪烁检测器的多通道核成像装置的伽马射线符合分析系统，其中检测器布置在环的象限中。环中的闪烁检测器具有包括各自的定时鉴别器和或门的输出电路，以及提供延迟的能量脉冲的各自的能量鉴别器，并且其中来自相应象限的定时脉冲经由或门馈送到四输入重合检测器没有任何延迟，除了鉴别器内部的小延迟和OR门的非常小的延迟。在能量鉴别器处的能量脉冲的延迟是在500nsec的能量验证周期。随后将来自重合检测器的输出脉冲延迟相同的周期，以验证两个通道的能量水平导致重合。响应于延迟符合信号和延迟能量验证脉冲的同时产生数据输出信号。

2. 发明授权

US4415807A Cross-slice data acquisition system for pet scanner 失效
标题翻译：宠物扫描仪的横切片数据采集系统
公开(公告)号：US4415807A
公开(公告)日：1983-11-15
申请号：US250840
申请日：1981-04-03
申请人： Walter S. Friauf , Rodney A. Brooks , Horace E. Cascio , Victor Sank
发明人： Walter S. Friauf , Rodney A. Brooks , Horace E. Cascio , Victor Sank
IPC分类号： G01T1/29 , G01T1/20
CPC分类号： G01T1/2985 , A61B6/037
摘要： A positron emission tomographic scanner is provided with cross-slice event data handling capability by adding only a coincidence detector and register in common to the circuitry for two adjacent planar detector arrays and adding an OR gate to the circuitry for each array. The improvement permits the same circuitry to be utilized for both cross-slice event processing and intra-slice event processing. Selection of the identification code for a detector is determined by a first coincidence detector in the case of an intra-slice event and the added coincidence detector in the case of an inter-slice event.
摘要翻译：正电子发射断层扫描仪具有跨切片事件数据处理能力，通过仅将一致检测器和寄存器公共地注册到两个相邻的平面检测器阵列的电路中，并将或门加到每个阵列的电路上。该改进允许将相同的电路用于跨切片事件处理和片内事件处理。在片内事件的情况下由第一重合检测器确定检测器的识别码的选择，并且在片间事件的情况下由添加的重合检测器确定。

3. 发明授权

US4200806A Scanning flow indicator for rotameters 失效
标题翻译：扫描流量指示器进行旋转
公开(公告)号：US4200806A
公开(公告)日：1980-04-29
申请号：US900641
申请日：1978-04-25
申请人： Elijah C. Walker , Horace E. Cascio
发明人： Elijah C. Walker , Horace E. Cascio
IPC分类号： G01F1/24 , G01N21/26
CPC分类号： G01F1/24
摘要： A flow indicating attachment for a transparent rotameter column containing a visible float movable in accordance with the rate of fluid flow through the column consists of a reciprocating scanner moving parallel to the column in a flow rate range including the range of float movement and coupled to a potentiometer forming a synchronous analog scanning signal which is furnished to a recorder. The scanner has a photoelectric float-sensing assembly including a photocell connected in the analog scanning signal circuit. When the sensing assembly is shaded by the rotameter float, it produces an abrupt dip in the recorded analog scanning signal, thus providing a recorded indication of the float's position in the range covered by the track of the reciprocating scanner.
摘要翻译：用于透明转杯指示器的流动指示附件包含可移动的可见浮子，其可根据流过该柱的流体流量而移动，该方法包括：在包括浮动运动范围的流速范围内平行于塔移动的往复式扫描器，电位器形成同步模拟扫描信号，该信号被提供给记录器。扫描仪具有光电浮选检测组件，其包括连接在模拟扫描信号电路中的光电管。当感测组件被转子流量计浮子遮蔽时，其在记录的模拟扫描信号中产生突然下降，从而在往复扫描器的轨道覆盖的范围内提供浮动位置的记录指示。

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