Title :
A liquid scintillator fast neutron double-scatter imager
Author :
Hutcheson, Anthony L. ; Phlips, Bernard F.
Author_Institution :
High Energy Space Environ. Branch, U.S. Naval Res. Lab., Washington, DC, USA
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
A liquid scintillator fast neutron imager based on double-scatter neutron detection is in development for the purpose of identifying and locating special nuclear materials. A prototype instrument is being tested consisting of two planes of four 1 m × 5 cm × 5 cm liquid scintillator detectors each viewed at either end by a photomultiplier tube. The instrument is capable of reconstructing energy and location of a source of fast neutrons via time-of-flight and neutron double-scatter techniques. Pulse shape discrimination is utilized to separate neutron signals from gamma-ray background.
Keywords :
liquid scintillation detectors; neutron detection; nuclear materials safeguards; photomultipliers; double scatter neutron detection; fast neutron source energy reconstruction; fast neutron source location reconstruction; gamma-ray background; liquid scintillator detectors; liquid scintillator fast neutron imager; neutron double scatter technique; neutron signals; photomultiplier tube; pulse shape discrimination; size 1 m; size 5 cm; special nuclear materials; time of flight technique; Event detection; Instruments; Laboratories; Light scattering; Neutrons; Nuclear and plasma sciences; Protons; Scintillation counters; Solid scintillation detectors; Telephony;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5402406
