准宏观中子噪声测量分析系统的开发

Development of Quasi Macroscopic Neutron Noise Measurement and Analysis System

基于LabVIEW平台开发了反应堆准宏观中子噪声测量分析系统。布置在次临界反应堆附近的3He计数管输出的中子脉冲信号,经过若干仪器模块和PCI-6602数据采集卡,送入计算机,通过频谱分析可以得出次临界反应堆的瞬发中子衰减常数。该系统已经过实验的验证。

Based on LabVIEW development platform,the Quasi Macroscopic Neutron Noise Measurement and Analysis System was designed,which accepts neutron pulses from 3He detectors located near a subcritical reactor,and performs spectral analysis on the data,then obtains the prompt neutron decay constant of the reactor.The system has been tested by some experiments.