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Thermally stimulated luminescence and electron paramagnetic resonance studies on uranium doped calcium phosphate

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Abstract

Thermally stimulated luminescence (TSL) and electron paramagnetic resonance (EPR) studies on uranium doped calcium phosphate yielded mechanistic information on the observed glow peaks at 365, 410 and 450 K. TSL spectral studies of the glow peaks showed that UO2 2+ acts as the luminescent center. Electron paramagnetic resonance studies on gamma-irradiated samples revealed that the predominant radiation induced centers are H0, PO4 2-, PO3 2- and O- ion. Studies on the temperature dependence studies of the EPR spectra of samples annealed to different temperatures indicate the role of H0 and PO4 2- ions in the main glow peak at 410 K.

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Authors and Affiliations

  1. 400 085 Mumbai Radiochemistry Division, Bhabha Atomic Research Centre Radiochemistry Division, Trombay, Mumbai, 400 085, India

    V. Natarajan, T. K. Seshagiri, R. Veeraraghavan & M. D. Sastry

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  1. V. Natarajan
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  2. T. K. Seshagiri
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  3. R. Veeraraghavan
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  4. M. D. Sastry
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Natarajan, V., Seshagiri, T.K., Veeraraghavan, R. et al. Thermally stimulated luminescence and electron paramagnetic resonance studies on uranium doped calcium phosphate. Journal of Radioanalytical and Nuclear Chemistry 257, 411–416 (2003). https://doi.org/10.1023/A:1024760602715

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  • DOI: https://doi.org/10.1023/A:1024760602715

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