Title :
Offline Pulse-Shape Discrimination Algorithms for Neutron Spectrum Unfolding
Author :
Flaska, Marek ; Pozzi, Sara A.
Author_Institution :
Oak Ridge Nat. Lab., TN
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
An optimized fast pulse-shape discrimination algorithm is used to discriminate neutrons from gamma rays with high accuracy, in a mixed radiation field. The discriminated data is subsequently used to identify the source. Experimental pulse-height distributions from discriminated data are shown for Cf-252 and Am-Be sources and are compared with simulations performed with the MCNP-PoliMi code. In all cases, very good agreement between simulations and measurements was achieved. In addition, several source-shielding configurations are presented to assess the influence of the potential source shielding on the measured neutron pulse-height distribution.
Keywords :
neutron spectra; pulse height analysers; pulse shaping; pulse shaping circuits; MCNP-PoliMi code; mixed radiation field; neutron spectrum unfolding; offline pulse-shape discrimination algorithms; pulse-height distributions; source-shielding configurations; Composite materials; Detectors; Face detection; Gamma rays; Laboratories; National security; Neutrons; Oscilloscopes; Pulse measurements; Telephony;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0560-2
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2006.355962
