To realize the relative distribution measurement of neutron flux in reactor core, the measurement device for multi-channel neutron flux relative distribution has been developed, based on the radioactive counting of activated detection slice measured by NaI detector. The measurement device is made up of PTMC12 data-acquisition board, industrial PC and MNFDAS software, which can automatically achieve the timing and counting function in both cyclical and non-cyclical models, meanwhile the measuring results can be saved as both graphic and data files. The test shows that the stability of the measu...
