Characterization of stilbene-d12 for neutron spectroscopy without time of flight

N. Gaughan, J. Zhou, F. D. Becchetti, R. O. Torres-Isea, M. Febbraro, N. Zaitseva, Y. Altmann, A. Di Fulvio*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)
14 Downloads (Pure)


We have experimentally characterized the light-output response of a deuterated trans-stilbene (stilbene-d12) crystal to quasi-monoenergetic neutrons in the 0.8 to 4.4 MeV energy range. These data allowed us to perform neutron spectroscopy measurements of a DT 14.1 MeV source and a 239PuBe source by unfolding the impinging neutron spectrum from the measured light-output response. The stilbene-d12 outperforms a 1H−stilbene of similar size when comparing the shape of the unfolded spectra and the reference ones. These results confirm the viability of non-hygroscopic stilbene-d12 crystal for direct neutron spectroscopy without need for time-of-flight measurements. This capability makes stilbene-d12 a well suited detector for fast-neutron spectroscopy in many applications including nuclear reaction studies, radiation protection, nuclear non-proliferation, and space travel.

Original languageEnglish
Article number165822
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Early online date30 Sept 2021
Publication statusPublished - 1 Dec 2021


  • Deuterated scintillators
  • Neutron spectroscopy
  • Scintillation detector
  • Spectral unfolding

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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