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    • 92. 发明申请
    • MULTI-WINDOW SIGNAL PROCESSING ELECTRONICS ARHITECTURE FOR PHOTON COUNTING WITH MULTI-ELEMENT SENSORS
    • 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
    • WO2007111912A2
    • 2007-10-04
    • PCT/US2007/007058
    • 2007-03-22
    • II-VI INCORPORATEDBROOKHAVEN SCIENCE ASSOCIATES, LLCGROSHOLZ, Joseph, Jr.O'CONNOR, PaulDEGERONIMO, Gianluigi
    • GROSHOLZ, Joseph, Jr.O'CONNOR, PaulDEGERONIMO, Gianluigi
    • G06F19/00
    • G01T1/17G01T7/005
    • 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.
    • 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)被操作,因此只有与响应于超过其触发阈值信号的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。