Development of Quasi Macroscopic Neutron Noise Measurement and Analysis System

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.