Development of the Discrimination of Neutrons and Gamma Rays in the Liquid Scintillator

The discrimination between neutrons and gamma rays in liquid scintillators has been investigated in this paper. We analyzed the scintillation mechanism in liquid scintillators and provided a review of the conventional analogue discrimination techniques of neutrons and gamma rays (n/γ) and recent digital n/γ discrimination techniques. The principle and feature of each technique have been expounded. In conclusion the significant advantages of the digital n/γ discrimination techniques over the analog techniques have been summarized.