Revista mexicana de física
Print version ISSN 0035-001X
GALLEGOS, A. et al. Thermo-transferred thermoluminescence (TTTL) in potassium-yttrium double fluoride doped with terbium. Rev. mex. fis. [online]. 2011, vol.57, suppl.1, pp.65-68. ISSN 0035-001X.
This paper presents results of studying the thermo-transferred thermoluminescence (TTTL) phenomenon in potassium-yttrium double fluoride doped with terbium (K2YF5:Tb) at different impurity concentrations (0.8%, 0.95% and 0.99%) Previously to study the TTTL phenomenon, structural characterization and chemical composition of the materials were determined. The structural studies were conducted using a scanning electron microscope (SEM); meanwhile, chemical composition was analyzed using energy dispersive X-ray spectroscopy (EDS). Thermoluminescence (TL) kinetics was studied irradiating the samples with 137Cs gamma rays as well as with 90Sr/90Y beta rays, analyzing the glow curves by the deconvolution method for obtaining the kinetic parameters.
Keywords : Thermoluminescence; rare-earth ions; doping.