Discrimination of neutron and photon signals using time and frequency domain data

Two new methods for the digital discrimination ofneutrons and gamma-rays in a mixed radiation field are presented.There are many methods available which take advantage of timedomainpulse shape discrimination of these two signals. However,there are no methods based on frequency-domain characteristics ofthem, in particular using discrete Fourier transform (DFT). ApplyingDFT, we can distinguish between these radiations much better.Combining time and frequency domain PSDs, we can furtherincrease the discrimination quality while improving computationtime to be applicable for field measurements.