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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.
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. 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.