Combustion synthesis and luminescence characteristic of rare earth activated LiCaBO3
来源期刊：JOURNAL OF RARE EARTHS2012年第10期
论文作者：N.S. Bajaj S.K. Omanwar
文章页码：1005 - 1008
摘 要：Lithium calcium borate （LiCaBO3） polycrystalline thermoluminescence （TL） phosphor doped with rare earth （Tb3+ and Dy3+） elements was synthesized by novel solution combustion synthesis. The reaction produced very stable crystalline LiCaBO3:D（D=Tb3+ and Dy3+） phosphors. These rare earth doped phosphors material showed maximum TL sensitivity with favorable glow curve shape. TL glow curve of X-ray irradiated that LiCaBO3:Tb3+ and LiCaBO3:Dy3+ samples showed two major well-separated glow peaks. The TL sensitivity of these phosphors to X-ray radiation was comparable with that of TLD-100（Harshaw）. Photoluminescence spectra of LiCaBO3:Tb3+ and LiCaBO3:Dy3+ showed the characteristic Tb3+ and Dy3+ peaks respectively. TL response to X-ray radiation dose was linear up to 25 Gy.
N.S. Bajaj，S.K. Omanwar
Department of Physics, SGB Amravati University Amravati-444602 (M.S.)
摘 要：Lithium calcium borate （LiCaBO3） polycrystalline thermoluminescence （TL） phosphor doped with rare earth （Tb3+ and Dy3+） elements was synthesized by novel solution combustion synthesis. The reaction produced very stable crystalline LiCaBO3:D（D=Tb3+ and Dy3+） phosphors. These rare earth doped phosphors material showed maximum TL sensitivity with favorable glow curve shape. TL glow curve of X-ray irradiated that LiCaBO3:Tb3+ and LiCaBO3:Dy3+ samples showed two major well-separated glow peaks. The TL sensitivity of these phosphors to X-ray radiation was comparable with that of TLD-100（Harshaw）. Photoluminescence spectra of LiCaBO3:Tb3+ and LiCaBO3:Dy3+ showed the characteristic Tb3+ and Dy3+ peaks respectively. TL response to X-ray radiation dose was linear up to 25 Gy.
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