Journal of Radioanalytical and Nuclear Chemistry

, Volume 262, Issue 3, pp 633–637 | Cite as

TSL and EPR studies of SrBPO5 doped with CeO2 and co-doped with CeO2 and Sm2O3

  • Mithlesh Kumar
  • R. M. Kadam
  • T. K. Seshagiri
  • V. Natarajan
  • A. G. Page


Thermally stimulated luminescence (TSL) and electron paramagnetic resonance (EPR) investigations were carried out on gamma irradiated SrBPO5 samples doped with CeO2 and co-doped with CeO2 and Sm2O3. On gamma-irradiation at room temperature, BO32−, O2 and O radicals were produced. It was seen that the O radical ion disappeared in the sample annealed at 500 K. It is proposed that the recombination between trapped electrons and O radical ions results in transfer of recombination energy to the impurity centre Ce3+ resulting in TSL glow peak at 485 K. In the case of co-doped samples energy transfer occurs between Ce3+ to Sm3+ resulting in increase in the intensity of glow peak at 485 K.


Physical Chemistry Inorganic Chemistry Recombination Energy Transfer Electron Paramagnetic Resonance 
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Copyright information

© Akadémiai Kiadó 2004

Authors and Affiliations

  • Mithlesh Kumar
    • 1
  • R. M. Kadam
    • 1
  • T. K. Seshagiri
    • 1
  • V. Natarajan
    • 1
  • A. G. Page
    • 1
  1. 1.Radiochemistry Division, B.A.R.C.TrombayIndia

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