Response characterization for an EJ315 deuterium-based liquid scintillation detector

Christopher Lawrence, Mark Norsworthy, Alan Howard, Marek Flaska, James Kolata, Sara Pozzi, Frederick Becchetti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Liquid scintillation detectors have shown promise as neutron detectors for characterizing special nuclear materials in various arms-control applications. Deuterated liquids, such as EJ315, are attractive for spectroscopy applications because the backward-peaked n-d scattering results in enhanced coupling between incident neutron energy and resulting pulse height. In the context of discrete neutron-energy spectra, this produces peaks in detector pulse-height spectra which correspond to the neutron energy groups present. With continuous spectra, increased coupling may yield better spectrum unfolding. In this work, we present a neutron response matrix for a three-by-two-inch cylindrical EJ315 detector, and compare to the hydrogen-based liquid EJ309 in the same active geometry. A 'white' neutron source, obtained with the bombardment of 11B with 5.5-MeV deuterons at the tandem Van de Graaff accelerator at University of Notre Dame, was used for the measurement. Detected neutrons were sorted by time of flight and pulse height into 100-keV energy bins and 50-keVee light-output bins, over the energy-range from 0.5 to 15 MeV. The resulting response matrix represents a full characterization of pulse-height response to neutrons over that energy range.

Original languageEnglish (US)
Title of host publication2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
Pages606-609
Number of pages4
DOIs
StatePublished - Dec 1 2012
Event2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012 - Anaheim, CA, United States
Duration: Oct 29 2012Nov 3 2012

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

Other2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
CountryUnited States
CityAnaheim, CA
Period10/29/1211/3/12

All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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    Lawrence, C., Norsworthy, M., Howard, A., Flaska, M., Kolata, J., Pozzi, S., & Becchetti, F. (2012). Response characterization for an EJ315 deuterium-based liquid scintillation detector. In 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012 (pp. 606-609). [6551179] (IEEE Nuclear Science Symposium Conference Record). https://doi.org/10.1109/NSSMIC.2012.6551179