DocumentCode :
1316268
Title :
Measurement of the Fast Neutron Energy Spectrum of an 
Source Using a Neutron Scatter Camera
Author :
Brennan, James ; Brubaker, Erik ; Cooper, Robert ; Gerling, Mark ; Greenberg, Charles ; Marleau, Peter ; Mascarenhas, Nicholas ; Mrowka, Stanley
Author_Institution :
Sandia Nat. Labs., Livermore, CA, USA
Volume :
58
Issue :
5
fYear :
2011
Firstpage :
2426
Lastpage :
2430
Abstract :
We have measured the neutron energy spectrum of an 241Am-Be(α,n) source between 1.5 MeV and 9 MeV using a neutron scatter camera. The apparatus consists of two segmented planes each with 16 liquid scintillator cells (Eljen EJ-309), for a total of 32 elements; the neutron energy spectrum is measured using double elastic scatter events. After unfolding resolution effects using a maximum likelihood technique, the measurement is compared to reference Am-Be spectra. Further, we discuss the ability of the neutron scatter camera to distinguish between an Am-Be source and a spontaneous fission source.
Keywords :
neutron spectra; neutron-nucleus scattering; radioactive sources; spontaneous fission; 241Am-Be source; double elastic scatter event; electron volt energy 1.5 MeV to 9 MeV; fast neutron energy spectrum measurement; liquid scintillator cells; maximum likelihood technique; neutron scatter camera; spontaneous fission source; Calibration; Cameras; Detectors; Energy measurement; Energy resolution; Neutrons; Uncertainty; Am-Be; AmBe; fast neutron; neutron energy spectrum; neutron scatter camera; neutron spectrometer;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2011.2163192
Filename :
6012498
Link To Document :
