一种仿^(252)Cf中子源脉冲信号频谱分析的FPGA设计与实现  

A Design and Realization of Simulated ^(252)Cf Nuclear Pulse Spectrum Analysis System Based on FPGA

作　　者：李鹏程[1] 魏彪[1] 

机构地区：[1]重庆大学光电工程学院,重庆400044

出　　处：《核电子学与探测技术》2011年第8期847-851,共5页Nuclear Electronics & Detection Technology

基　　金：中央高校基本科研业务费科研专项"研究生科技创新基金("CDJXS11121145)

摘　　要：从252Cf自发裂变中子源之裂变中子在时间分布上相互独立的基本原理出发,针对随机核信号在时间上呈泊松分布,在幅度上服从高斯分布的这一特征,开展了基于FPGA技术的仿252Cf中子源随机核信号产生及其频谱分析系统的研究。通过比较仿252Cf中子源核信号与核信号的功率谱趋势,验证了仿252Cf中子源随机信号产生机制的可靠性。研究表明,将FPGA技术运用仿核信号频谱分析是可行的,仿核随机信号的频谱分析研究工作为今后将此技术移植于核信号打下了基础。From the basic principle of independent distribution on time of spontaneous fission neutrons source 252Cf and according to the characteristics that nuclear random signal taking on Poisson distribution on time and Gaussian distribution on amplitude,do some researches on simulated 252Cf signal generator and its spectrum analysis based on FPGA.By comparing the power spectrum of simulated nuclear signal and nuclear signal verify that the simulation 252Cf neutron source random signal generation mechanism is reliable.The results show that using of FPGA technology on spectrum analysis of simulated nuclear signal can work,this paper have provided fundamental base for the further research that transplant the technology of spectrum analysis of simulated 252Cf source on 252Cf source random signal.

关 键 词：仿252Cf随机核脉冲 频谱分析 FPGA 

分 类 号：TN911[电子电信—通信与信息系统]