基于ZYNQ的γ能谱采集系统研制  

Development of a Gamma Spectrum Acquisition System Based on ZYNQ

作　　者：熊绪文 孟献才 洪兵 顾威 李帅 梁君筱 刘源煜 XIONG Xuwen;MENG Xiancai;HONG Bing;GU Wei;LI Shuai;LIONG Junxiao;LIU Yuanyu(School of Materials Science and Engineering,Anhui University of Science and Technology,Huainan 232000,China;Energy Research Institute,Energy Research Institute of Hefei Comprehensive National Science Center(Anhui Energy Laboratory),Hefei 230031,China)

机构地区：[1]安徽理工大学材料科学与工程学院,安徽淮南232000 [2]合肥综合性国家科学中心能源研究院(安徽省能源实验室),安徽合肥230031

出　　处：《核电子学与探测技术》2024年第6期1069-1077,共9页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金青年项目(12305200);合肥综合性国家科学中心能源研究院(安徽省能源实验室)项目(21KZS202、21KZS208);安徽省住房城乡建设科学技术计划项目(2023-RK043)。

摘　　要：本文设计了一种基于ZYNQ的γ能谱测量系统,用于瞬发中子活化分析仪中NaI探测器的γ能谱测量。γ能谱采集系统主要包括高压电源、数字多道幅度分析系统以及上位机等,可实现高达130 Msps的采集频率以及千兆以太网的数据传输及控制。经^(137)Cs、^(60)Co、^(152)Eu等放射源的测试,γ能谱采集系统能谱响应线性拟合优度为0.999,能量分辨率为8.76%(@0.662 keV)。结果表明,该γ能谱采集系统性能达到煤质成分检测的能谱测量要求。This article presents aγ-ray spectrum measurement system based on ZYNQ,designed forγ-ray spectrum measurement of NaI detectors in transient neutron activation analyzers.Theγ-ray spectrum acquisition system mainly includes a high-voltage power supply,a digital multi-channel amplitude analysis system,and an upper computer,capable of achieving a sampling frequency of up to 130Msps and data transmission and control via Gigabit Ethernet.Through tests with ^(137)Cs,^(60)Co,and ^(152)Eu radioactive sources,theγ-ray spectrum acquisition system exhibits a linear fitting goodness of 0.999,with an energy resolution of 8.76%(@0.662 keV).The results demonstrate that the performance of thisγ-ray spectrum acquisition system meets the spectrum measurement requirements for coal quality component detection.

关 键 词：ZYNQ 碘化钠 多道幅度分析系统 放射源 

分 类 号：TL8[核科学技术—核技术及应用]