Neutron generator burst timing measured using a pulse shape discrimination plastic scintillator with silicon photomultiplier readout

Authors

R M. Preston, University of WollongongFollow
J Eberhardt, CSIRO
J R. Tickner, CSIROFollow

RIS ID

87659

Publication Details

Preston, R. M., Eberhardt, J. & Tickner, J. R. (2013). Neutron generator burst timing measured using a pulse shape discrimination plastic scintillator with silicon photomultiplier readout. Journal of Instrumentation, 8 P12005-1-P125001-12.

Abstract

An EJ-299-34 plastic scintillator with silicon photomultiplier (SiPM) readout was used to measure the fast neutron output of a pulsed Thermo-Fisher A-325 Deuterium-Tritium sealed tube neutron generator (STNG). The SiPM signals were handled by a prototype digital pulse processing system, based on a free-running analogue to digital converter feeding a digital signal processor (DSP). Pulse shape discrimination was used to distinguish between detected fast-neutrons and gammas. Pulse detection, timing, energy and shape were all processed by the DSP in real-time.