471313 Effects in Morphology and Thermoluminescent Characteristics of Lif Crystals Synthesized By Using Nonionic and Cationic Surfactants

Thursday, November 17, 2016: 12:48 PM
Golden Gate 8 (Hilton San Francisco Union Square)
Esteban Rivera1, Modesto Sosa2, Miguel Vallejo2, Ricardo Navarro2 and Luis Diaz3, (1)Universidad de Guanajuato, León, Mexico, (2)University of Guanajuato, Leon, Mexico, (3)Centro de Investigaciones en Optica, Leon, Mexico

LiF crystals doped with Ce3+ and Mg were prepared using co-precipitation, using as solvent a mixture of ethanol and water in presence of Nonionic (PVP and Pluronic f-127) and cationic (CTAB) surfactants. The LiF crystals were characterized by scanning electron microscopy (SEM) obtaining average sizes of 100 nm, a single cubic crystalline phase was determined by XRD, the PL emission spectra shows two bands characteristics of Ce3+ and UV-Vis absorbance shows the presence of the rare-earth in the LiF crystals. The TL response to both X-ray and gamma from a Cs-137 source irradiation was studied.

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