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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/038/06/1527-1531

    • Keywords

       

      Combustion synthesis; photoionization cross-sections; TL; OSL; PL.

    • Abstract

       

      The polycrystalline sample of LiBaPO4 : Tb3+ (LBPT) was successfully synthesized by solution combustion synthesis and studied for its luminescence characteristics. The thermoluminescence (TL) glow curve of LBPT material consists of two peaks at 204.54 and 251.21°C. The optimum concentration was 0.005 mol to obtain the higher TL intensity compared to commercial TLD-100 phosphor. The peak shape method was used to calculate kinetic parameter (activation energy and frequency factor). In CW-OSL mode its sensitivity for beta exposure was found to be 50% compared to commercially available 𝛼-Al2O3 : C and 40% than LMP (BARC), and photoluminescence spectrum of LBPT shows green emission when excited with 225 nm UV source.

    • Author Affiliations

       

      C B Palan1 N S Bajaj1 A Soni2 M S Kulkarni2 S K Omanwar1

      1. Department of Physics, Sant Gadge Baba Amravati University, Amravati 444602, India
      2. Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai 400094, India
    • Dates

       

© 2017 Indian Academy of Sciences, Bengaluru.