Neutron Multiplicity Counting and Analysis for Uranium Material

Neutron multiplicity counting technique is a new method to greatly improve the measurement precision and reduce the measurement bias. The relatively considerable bias of active coincidence counting is analyzed, and the theoretical equation of active multiplicity counting is introduced in this paper. The data processing method is presented, and in this method, the sample multiplication is obtained based on the meas-ured data, and the reaction coefficient is obtained from the emperical relationship, and thus the sample mass is obtained.