Deuterated stilbene (stilbene-d12): An improved detector for fast neutrons
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Physics
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Sciences
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Here, we have developed and evaluated two prototype fast neutron deuterated-stilbene scintillators. The largest scintillator is hexagonal in shape with volume 32 cm3, comprised of deuterated crystalline trans-stilbene (stilbene-d12). These samples were grown using a solution-based crystal growing method developed at Lawrence Livermore Laboratory to grow conventional 1H-based stilbene scintillator crystals. The stilbene-d12 prototype detectors show excellent neutron/gamma discrimination, noticeably better than 1H-stilbene, and appear to have less asymmetry in the response to neutrons incident from different directions. Finally, like other deuterated scintillators, the stilbene-d12 detectors in many applications can provide incident neutron energy spectra, without time of flight, by suitably unfolding the neutron light-output spectra.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation; USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); Dept. of Homeland Security (DHS) (United States)
- Grant/Contract Number:
- AC05-00OR22725; AC52-07NA27344; NA0002534; PHY 14-01242; 2014-DN-077-ARI078-02; 2015-DN-077-ARI096; NA-241; NA-22
- OSTI ID:
- 1479728
- Alternate ID(s):
- OSTI ID: 1512599; OSTI ID: 1692072
- Report Number(s):
- LLNL-JRNL-757244
- Journal Information:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 908; ISSN 0168-9002
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Critical Review of Scintillating Crystals for Neutron Detection
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journal | September 2019 |
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