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1.发明申请Method and apparatus for signal processing in a sensor system for use in spectroscopy 有权用于光谱学的传感器系统中的信号处理方法和装置公开(公告)号：US20050246140A1
公开(公告)日：2005-11-03
申请号：US10835092
申请日：2004-04-29
CPC分类号： H03K5/1532 , G01J1/44 , G01J3/2803 , G01J2001/4238 , G01R19/04
摘要： A method for processing pulses arriving randomly in time on at least one channel using multiple peak detectors includes asynchronously selecting a non-busy peak detector (PD) in response to a pulse-generated trigger signal, connecting the channel to the selected PD in response to the trigger signal, and detecting a pulse peak amplitude. Amplitude and time of arrival data are output in first-in first-out (FIFO) sequence. An apparatus includes trigger comparators to generate the trigger signal for the pulse-receiving channel, PDs, a switch for connecting the channel to the selected PD, and logic circuitry which maintains the write pointer. Also included, time-to-amplitude converters (TACs) convert time of arrival to analog voltage and an analog multiplexer provides FIFO output. A multi-element sensor system for spectroscopy includes detector elements, channels, trigger comparators, PDs, a switch, and a logic circuit with asynchronous write pointer. The system includes TACs, a multiplexer and analog-to-digital converter.
摘要翻译： 一种用于处理使用多个峰值检测器在至少一个信道上随机随机到达的脉冲的方法包括响应于脉冲产生的触发信号来异步地选择非忙峰值检测器（PD），以响应于所选择的PD将信道连接到所选择的PD 触发信号，并检测脉冲峰值振幅。 幅度和到达时间数据以先进先出（FIFO）序列输出。 一种装置包括触发比较器，用于产生用于脉冲接收通道的触发信号，PD，用于将通道连接到所选择的PD的开关，以及维持写指针的逻辑电路。 还包括时间到幅度转换器（TAC）将到达时间转换为模拟电压，模拟多路复用器提供FIFO输出。 用于光谱的多元素传感器系统包括检测器元件，通道，触发比较器，PD，开关和具有异步写指针的逻辑电路。 该系统包括TAC，多路复用器和模数转换器。
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公开(公告)号：US06927396B2
公开(公告)日：2005-08-09
申请号：US10399810
申请日：2001-10-24
CPC分类号： G01T1/1644 , G01T1/1647 , G01T1/2928
摘要： A gamma ray camera A includes a crystal array S which includes a plurality of pixels 4 each of which outputs a pixel signal in response to receiving a gamma ray. A first circuit (6, 8, 10, 12, 14 and 22) outputs for each pixel 4 of the crystal array S, when a pixel signal output by the pixel 4 has a predetermined relation to a reference signal, a threshold signal related to the position of the pixel 4 in the crystal array S. A second circuit (18, 20, 24, 26, 28, 30 and 32) outputs a counter value for each pixel signal having a predetermined relation to its threshold signal. Lastly, a third circuit 34 accumulates for each pixel 4 of the crystal array S a count of the counter values output by the second circuit (18, 20, 24, 26, 28, 30 and 32) for the pixel 4.
摘要翻译： 伽马射线照相机A包括晶体阵列S，其包括多个像素4，每个像素4响应于接收伽马射线而输出像素信号。 当由像素4输出的像素信号与参考信号具有预定关系时，第一电路（6,8,10,12,14和22）输出晶体阵列S的每个像素4， 像素4在晶体阵列S中的位置。第二电路（18,20,24,26,28,30和32）输出与其阈值信号具有预定关系的每个像素信号的计数器值。 最后，第三电路34对于晶体阵列S的每个像素4累积由像素4的第二电路（18,20,24,26,28,30和32）输出的计数器值的计数。
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3.发明授权Method and apparatus for signal processing in a sensor system for use in spectroscopy 有权用于光谱学的传感器系统中的信号处理方法和装置公开(公告)号：US07378637B2
公开(公告)日：2008-05-27
申请号：US10835092
申请日：2004-04-29
CPC分类号： H03K5/1532 , G01J1/44 , G01J3/2803 , G01J2001/4238 , G01R19/04
摘要： A method for processing pulses arriving randomly in time on at least one channel using multiple peak detectors includes asynchronously selecting a non-busy peak detector (PD) in response to a pulse-generated trigger signal, connecting the channel to the selected PD in response to the trigger signal, and detecting a pulse peak amplitude. Amplitude and time of arrival data are output in first-in first-out (FIFO) sequence. An apparatus includes trigger comparators to generate the trigger signal for the pulse-receiving channel, PDs, a switch for connecting the channel to the selected PD, and logic circuitry which maintains the write pointer. Also included, time-to-amplitude converters (TACs) convert time of arrival to analog voltage and an analog multiplexer provides FIFO output. A multi-element sensor system for spectroscopy includes detector elements, channels, trigger comparators, PDs, a switch, and a logic circuit with asynchronous write pointer. The system includes TACs, a multiplexer and analog-to-digital converter.
摘要翻译： 一种用于处理使用多个峰值检测器在至少一个信道上随机随机到达的脉冲的方法包括响应于脉冲产生的触发信号异步地选择非忙峰值检测器（PD），以响应于所选择的PD将信道连接到所选择的PD 触发信号，并检测脉冲峰值振幅。 幅度和到达时间数据以先进先出（FIFO）序列输出。 一种装置包括触发比较器，用于产生用于脉冲接收通道的触发信号，PD，用于将通道连接到所选择的PD的开关，以及维持写指针的逻辑电路。 还包括时间到幅度转换器（TAC）将到达时间转换为模拟电压，模拟多路复用器提供FIFO输出。 用于光谱的多元素传感器系统包括检测器元件，通道，触发比较器，PD，开关和具有异步写入指针的逻辑电路。 该系统包括TAC，多路复用器和模数转换器。
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4.发明授权Multi-window signal processing electronics architecture for photon counting with multi-element sensors 有权多窗口信号处理电子结构用于多元素传感器的光子计数公开(公告)号：US08354650B2
公开(公告)日：2013-01-15
申请号：US12282607
申请日：2007-03-22
IPC分类号： G01T1/00
摘要： A radiation detection and counting system (2) includes a radiation detector element (5) for outputting a signal related to an energy of a radiation event received thereby and an amplifier (8) for amplifying the signal output by the detector element (5). A gain equalization circuit (10) adjusts the gain of the amplified output signal and a plurality of comparators (12) compare the gain adjusted amplified output signal to a like plurality of different valued threshold signals that are independently adjustable of each other A plurality of counters (20) is operative whereupon only the counter associated with the one comparator (12) that changes state in response to the peak of the gain adjusted amplified output signal exceeding the value of the trigger threshold signal thereof is incremented. A storage (24) stores the incremented value of each counter (20) accumulated over a sample time interval and data output logic circuit (26) transfers the stored accumulated counts out of the storage.
摘要翻译： 辐射检测和计数系统（2）包括用于输出与由其接收的辐射事件的能量相关的信号的放射线检测器元件（5）和用于放大由检测器元件（5）输出的信号的放大器（8）。 增益均衡电路（10）调节放大的输出信号的增益，并且多个比较器（12）将增益调整的放大输出信号与可以彼此独立调节的相似多个不同值阈值信号进行比较多个计数器 （20）可操作，因此只有与响应于超过其触发阈值信号值的增益调整放大输出信号的峰值改变状态的一个比较器（12）相关联的计数器增加。 存储器（24）存储在采样时间间隔上累积的每个计数器（20）的递增值，并且数据输出逻辑电路（26）将存储的累积计数从存储器传送出去。
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5.发明申请MULTI-WINDOW SIGNAL PROCESSING ELECTRONICS ARCHITECTURE FOR PHOTON COUNTING WITH MULTI-ELEMENT SENSORS 有权用于具有多元传感器的光子计数器的多窗口信号处理电子结构公开(公告)号：US20090302232A1
公开(公告)日：2009-12-10
申请号：US12282607
申请日：2007-03-22
IPC分类号： G01T1/00
摘要： A radiation detection and counting system (2) includes a radiation detector element (5) for outputting a signal related to an energy of a radiation event received thereby and an amplifier (8) for amplifying the signal output by the detector element (5). A gain equalization circuit (10) adjusts the gain of the amplified output signal and a plurality of comparators (12) compare the gain adjusted amplified output signal to a like plurality of different valued threshold signals that are independently adjustable of each other A plurality of counters (20) is operative whereupon only the counter associated with the one comparator (12) that changes state in response to the peak of the gain adjusted amplified output signal exceeding the value of the trigger threshold signal thereof is incremented. A storage (24) stores the incremented value of each counter (20) accumulated over a sample time interval and data output logic circuit (26) transfers the stored accumulated counts out of the storage.
摘要翻译： 辐射检测和计数系统（2）包括用于输出与由其接收的辐射事件的能量相关的信号的放射线检测器元件（5）和用于放大由检测器元件（5）输出的信号的放大器（8）。 增益均衡电路（10）调节放大的输出信号的增益，并且多个比较器（12）将增益调整的放大输出信号与可以彼此独立调节的相似多个不同值阈值信号进行比较多个计数器 （20）可操作，因此只有与响应于超过其触发阈值信号值的增益调整放大输出信号的峰值改变状态的一个比较器（12）相关联的计数器增加。 存储器（24）存储在采样时间间隔上累积的每个计数器（20）的递增值，并且数据输出逻辑电路（26）将存储的累积计数从存储器传送出去。
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公开(公告)号：US20090095915A1
公开(公告)日：2009-04-16
申请号：US12248359
申请日：2008-10-09
IPC分类号： G01T1/24
摘要： A radiation detection system includes a radiation detector and a DC/DC converter that induces an electric field in the radiation detector. A counter circuit outputs a pulse related to the energy of each incoming radiation event on the radiation detector. The peak amplitude of each pulse output by the counter circuit is converted into a digital equivalent value. A means for processing processes each digital equivalent value and counts a number of pulses output by the counter circuit over an interval of time. A port has one or more data lines connected to the means for processing and one or more power lines connected to the DC/DC converter. The port facilitates a connection to a host system which provides a single DC voltage to the DC/DC converter which converts the single DC voltage into a higher level voltage that induces the electric field in the radiation detector.
摘要翻译： 辐射检测系统包括辐射检测器和在辐射检测器中诱发电场的DC / DC转换器。 计数器电路输出与辐射检测器上的每个入射辐射事件的能量有关的脉冲。 由计数器电路输出的每个脉冲的峰值幅度被转换为数字等效值。 一种用于处理每个数字等效值并且在一段时间内对计数器电路输出的脉冲数进行计数的装置。 端口具有连接到用于处理的装置和连接到DC / DC转换器的一个或多个电力线的一个或多个数据线。 该端口便于连接到主机系统，该主机系统向DC / DC转换器提供单个DC电压，DC / DC转换器将单个DC电压转换为在辐射探测器中引起电场的较高电平电压。
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