Evaluation of large deuterated scintillators for fast neutron detection (E=0.520 MeV) using the D(d,n)3He, 13C(d,n) and 27Al(d,n) reactions

M. Ojaruega, F. D. Becchetti, A. N. Villano, Hao Jiang, R. O. Torres-Isea, J. J. Kolata, A. Roberts, C. C. Lawrence

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Abstract

The response of large deuterated liquid scintillators (up to 10 cm diameter by 15 cm) to neutrons 0.520 MeV has been studied using the 2.5 MeV neutron generator at the University of Michigan, and the d(d,n), 13C(d,n), 27Al(d,n) and other reactions at the University of Notre Dame FN tandem accelerator. The latter utilize 9 and 16 MeV deuteron beams including a pulsed beam, which permitted time-of-flight measurements. Combining pulse-shape discrimination and time-of-flight allows gating on specific neutron energy groups to determine the detector response to specific neutron energies. This will permit accurate simulation of the detector response functions for applications of these detectors in nuclear research and homeland security applications.

Original languageEnglish (US)
Pages (from-to)397-399
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume652
Issue number1
DOIs
StatePublished - Oct 1 2011

Bibliographical note

Funding Information:
We thank the UND operating staff and in particular acknowledge the assistance provided by the late Dr. L. Lamm. Thanks to Anette Casiano for her help with the figures and insightful discussions. This work was supported by the U.S. National Science, Foundation under Contracts PHY-0652591, CMMI 0936649, PHY-0969456 and PHY-0758100 .

Keywords

  • Deuterated liquid scintillators
  • Neutron detection
  • Neutron time-of-flight
  • Nuclear reactions

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