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Barium iodide and strontium iodide crystals andd scintillators implementing the same

Patent ·
OSTI ID:1108009
In one embodiment, a material comprises a crystal comprising strontium iodide providing at least 50,000 photons per MeV. A scintillator radiation detector according to another embodiment includes a scintillator optic comprising europium-doped strontium iodide providing at least 50,000 photons per MeV. A scintillator radiation detector in yet another embodiment includes a scintillator optic comprising SrI.sub.2 and BaI.sub.2, wherein a ratio of SrI.sub.2 to BaI.sub.2 is in a range of between 0:1 A method for manufacturing a crystal suitable for use in a scintillator includes mixing strontium iodide-containing crystals with a source of Eu.sup.2+, heating the mixture above a melting point of the strontium iodide-containing crystals, and cooling the heated mixture near the seed crystal for growing a crystal. Additional materials, systems, and methods are presented.
Research Organization:
LLNL (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); Fisk University (Nashville, TN)
Patent Number(s):
8,580,149
Application Number:
12/255,375
OSTI ID:
1108009
Country of Publication:
United States
Language:
English

References (8)

Luminescence and scintillation properties of the small band gap compound LaI3:Ce3+
  • Bessiere, A.; Dorenbos, P.; van Eijk, C. W. E.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 537, Issue 1-2, p. 22-26 https://doi.org/10.1016/j.nima.2004.07.224
journal January 2005
Determination of Europium(II) and Total Europium in Europium-Activated Lithium Iodide Scintillation Crystals. journal September 1964
Die Kristallstruktur der monoklinen Form von Europium(II)jodid EuJ 2 journal June 1969
Heterogeneous Halide-Silica Phosphors journal January 1975
Scintillation characteristics of thin-film calcium iodide crystal x-ray detectors journal August 1998
Europium-doped barium halide scintillators for x-ray and γ-ray detections journal February 2007
CaI2 and CaI2(Eu) Scintillation Crystals journal June 1964
The Crystal Structures of Barium Chloride, Barium Bromide, and Barium Iodide journal October 1963

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