Thermoluminescence of indium titanate europium activated
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Indium titanate
gamma radiation
dosimetry Titanato de Indio
radiación gamma

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Muñoz Palma, I., Brown, F., Vázquez-Paz, F. M., Marcazzó, J., & Cruz-Zaragoza, E. (2016). Thermoluminescence of indium titanate europium activated. Nova Scientia, 8(16), 77–90.


In2TiO5 is a good insulator at room temperature because it has a band gap of 3.2 eV. The thermoluminescent properties of europium activated In2TiO5 are reported in this work. This material was prepared by conventional solid state reaction, and its characterization was carried out by scanning electronic microscopy, energy dispersive spectroscopy and X-ray diffraction. The thermoluminescent intensity of the europium activated In2TiO5 increased nearly six times in comparison to In2TiO5 pure phosphor. The glow curve of In2TiO5: Eu was a broad band and it shows a maximum at 382 K. Five peaks centered at 372, 382, 432, 488 and 556 K were obtained by deconvolution method assuming the general order kinetics model. These peaks are in agreement with those obtained by the thermal bleaching named TM-TSTOP method. A linear dose-response was obtained between 31 to 1200 Gy followed by a saturation stage at 1400 Gy dose gamma radiation. The standard deviation of the thermoluminescent signal reproducibility was 5.7 %. The fading at room temperature was significantly influenced by the low temperature peak (382 K). Therefore, this material could be taken into account as a phosphor for high dose gamma dosimetry
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