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Title: Mixed crystal organic scintillators

A mixed organic crystal according to one embodiment includes a single mixed crystal having two compounds with different bandgap energies, the organic crystal having a physical property of exhibiting a signal response signature for neutrons from a radioactive source, wherein the signal response signature does not include a significantly-delayed luminescence characteristic of neutrons interacting with the organic crystal relative to a luminescence characteristic of gamma rays interacting with the organic crystal. According to one embodiment, an organic crystal includes bibenzyl and stilbene or a stilbene derivative, the organic crystal having a physical property of exhibiting a signal response signature for neutrons from a radioactive source.
Inventors:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1159642
Assignee:
Lawrence Livermore National Security, LLC. (Livermore, CA) LLNL
Patent Number(s):
8,835,865
Application Number:
13/670,778
Contract Number:
AC52-07NA27344
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Works referenced in this record:

Measurements of Scintillation Lifetimes
journal, August 1953
  • Phillips, H. Bruce; Swank, Robert K.
  • Review of Scientific Instruments, Vol. 24, Issue 8, p. 611-616
  • DOI: 10.1063/1.1770800

The Decay Times of Organic Scintillators and Their Application to the Discrimination between Particles of Differing Specific Ionization
journal, December 1958

Pulse Shape Discrimination in Impure and Mixed Single-Crystal Organic Scintillators
journal, December 2011
  • Zaitseva, Natalia; Glenn, Andrew; Carman, Leslie
  • IEEE Transactions on Nuclear Science, Vol. 58, Issue 6, p. 3411-3420
  • DOI: 10.1109/TNS.2011.2171363

Neutron detection with single crystal organic scintillators
conference, September 2009
  • Zaitseva, Natalia P.; Newby, Jason; Hamel, Sebastien
  • Proc. SPIE, Vol. 7449
  • DOI: 10.1117/12.829870