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Proceedings Paper

Lanthanide-halide-based nanoscintillators for portable radiological detectors
Author(s): Marek Osiński; John B. Plumley; Nathan J. Withers; Antonio C. Rivera; Brian A. Akins; Krishnaprasad Sankar; Gennady A. Smolyakov
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Paper Abstract

Colloidal synthesis of core/shell nanocrystals with cerium-doped lanthanum fluoride core and undoped lanthanum fluoride shell, and of core/shell nanocrystals with hygroscopic cerium-doped lanthanum bromide core and undoped lanthanum fluoride shell is reported. The nanocrystals were characterized by transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), dynamic light scattering (DLS) analysis, steady state UV-VIS optical absorption and photoluminescence spectroscopy, and by photoluminescence lifetime measurements. Scintillation tests were performed on the cerium-doped lanthanum fluoride nanocrystalline material exposed to low-level gamma irradiation.

Paper Details

Date Published: 12 May 2009
PDF: 16 pages
Proc. SPIE 7306, Optics and Photonics in Global Homeland Security V and Biometric Technology for Human Identification VI, 730617 (12 May 2009); doi: 10.1117/12.819018
Show Author Affiliations
Marek Osiński, CHTM, The Univ. of New Mexico (United States)
John B. Plumley, CHTM, The Univ. of New Mexico (United States)
Nathan J. Withers, CHTM, The Univ. of New Mexico (United States)
Antonio C. Rivera, CHTM, The Univ. of New Mexico (United States)
Brian A. Akins, CHTM, The Univ. of New Mexico (United States)
Krishnaprasad Sankar, CHTM, The Univ. of New Mexico (United States)
Gennady A. Smolyakov, CHTM, The Univ. of New Mexico (United States)


Published in SPIE Proceedings Vol. 7306:
Optics and Photonics in Global Homeland Security V and Biometric Technology for Human Identification VI
B.V.K. Vijaya Kumar; Salil Prabhakar; Arun A. Ross; Craig S. Halvorson; Šárka O. Southern, Editor(s)

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