缪子探测器位置灵敏读出电子学系统研制  

Development of Position Sensitive Readout Electronics System for Muon Detectors

作　　者：黄明[1] 张镇 张家赫 杨富华 HUANG Ming;ZHANG Zhen;ZHANG Jiahe;YANG Fuhua(North China University of Technology,Beijing 100144,China)

机构地区：[1]北方工业大学,北京100144

出　　处：《工业技术创新》2022年第6期87-96,共10页Industrial Technology Innovation

摘　　要：缪子探测具有探测范围广、适用领域宽等优势,但野外探测等需求对其小型化、低功耗、扩展性等提出了挑战。以硅光电倍增管(SiPM)和闪烁体为主要元器件,研制一套缪子探测器的核心系统——位置灵敏读出电子学系统。开展系统整体结构设计,将系统划分为前端采集板、数据处理板、主控板以及电源板。数据处理板在系统功能逻辑处理中起到核心作用,通过降噪、校时、温度读取、温度电压转换、数据成帧、数据发送等模块化、流程化设计,实现信号数字化甄别、稳压补偿、数据上报等功能。经实测,该系统实现了双层共400路通道信号数据稳定读出,温度电压曲线图的温度系数为0.021,与SiPM偏压随温度变化的规定值0.0215 V/相差不大,较好实现了环境温度补偿。系统实现了小型化、易扩展性、实用性强等需求,为缪子探测任务提供了一种灵活的解决方案。Muon detection has the advantages such as wide detection range and wide application field,but its miniaturization,low power consumption and expansibility are challenged by the requirements of field detection.With silicon photomultiplier(SiPM)and scintillator as main components,a set of position sensitive readout electronics system,the core system of Muon detector,was developed.The overall structure design of the system was carried out,and the system was divided into front-end acquisition board,data processing board,main control board and power board.The data processing board played a key role in the logic processing of the system function,and achieved the functions such as digital signal discrimination,voltage stabilization compensation,data reporting,etc.,by introducing modular and process designs such as noise reduction,time calibration,temperature reading,temperature-voltage conversion,data framing and data transmission.The actual measurement shows that such a system can stably read out the signal data of 400 channels in two layers,and the temperature coefficient of the temperature-voltage curve is 0.021,which is not much different from the specified value of SiPM bias voltage(0.0215 V/□)which varies with temperature,thus realizing the environmental temperature compensation.The system meets the requirements of miniaturization,easy expansibility and strong practicability,and provides a flexible solution for Muon detection.

关 键 词：缪子探测器 位置灵敏读出电子学 硅光电倍增管(SiPM) 温度电压转换 环境温度补偿 

分 类 号：TL82[核科学技术—核技术及应用]