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A Wavelet Packet Transform Inspired Method of Neutron-Gamma Discrimination

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3 Author(s)
David I. Shippen ; Engineering Department, Lancaster University, U. K. ; Malcolm J. Joyce ; Michael D. Aspinall

A Simplified Digital Charge Collection (SDCC) method of discrimination between neutron and gamma pulses in an organic scintillator is presented and compared to the Pulse Gradient Analysis (PGA) discrimination method. Data used in this research were gathered from events arising from the 7Li(p,n)7Be reaction detected by an EJ-301 organic liquid scintillator recorded with a fast digital oscilloscope. Time-of-Flight (TOF) data were also recorded and used as a second means of identification. The SDCC method is found to improve on the figure of merit (FOM) given by PGA method at the equivalent sampling rate.

Published in:

IEEE Transactions on Nuclear Science  (Volume:57 ,  Issue: 5 )