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

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Authors

AMIRI Moslem ČECHÁK Jaroslav MATĚJ Zdeněk

Year of publication 2011
Type Article in Proceedings
Conference Proceedings of the International Scientific Conference MMK 2011
MU Faculty or unit

Faculty of Informatics

Citation
Field Informatics
Keywords neutron detection; neutron spectroscopy; digital pulse shape discrimination technique; time domain PSD; frequency domain PSD; organic scintillator
Description Two new methods for the digital discrimination of neutrons and gamma-rays in a mixed radiation field are presented. There are many methods available which take advantage of time-domain pulse shape discrimination of these two signals. However, there are no methods based on frequency-domain characteristics of them, in particular using discrete Fourier transform (DFT). Applying DFT, we can distinguish between these radiations much better. Combining time and frequency domain PSDs, we can further increase the discrimination quality while improving computation time to be applicable for field measurements.
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