准宏观中子噪声测量分析系统的开发

摘要

Based on Lab VIEW development platform, the Quasi Macroscopic Neutron Noise Measurement and Analysis System was designed, which accepts neutron pulses from 3 He 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.%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3 He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.