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Title: Mixed crystal organic scintillators

Patent ·
OSTI ID:1159642

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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC. (Livermore, CA)
Patent Number(s):
8,835,865
Application Number:
13/670,778
OSTI ID:
1159642
Country of Publication:
United States
Language:
English

References (5)

Measurements of Scintillation Lifetimes journal August 1953
Scintillation Decay Times of Organic Crystals journal March 1956
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
Neutron detection with single crystal organic scintillators conference September 2009