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Persistent luminescence dosimetry performance of solid state synthesized BaZrO3 phosphors
I G Encinas-Osuna1, R Bernal2, C Cortez-Galaz1
1Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Apartado Postal 130, Hermosillo, Sonora, 83000, Mexico.
Summary
This study characterizes barium zirconate (BaZrO3) phosphors for luminescence applications. The synthesized material shows reproducible thermoluminescence and persistent luminescence, making it suitable for radiation detection.
Area of Science:
- Solid-state chemistry
- Luminescence and spectroscopy
- Materials science
Background:
- Barium zirconate (BaZrO3) is explored for its luminescent properties.
- Understanding its thermoluminescence (TL) and persistent luminescence (PLu) is crucial for potential applications.
Purpose of the Study:
- To characterize the TL and PLu properties of BaZrO3 synthesized via solid-state reaction.
- To evaluate its potential as a detector and dosimeter for ionizing radiation.
Main Methods:
- Solid-state reaction synthesis of BaZrO3.
- X-ray diffraction for structural confirmation.
- Thermoluminescence (TL) glow curve analysis.
- Persistent luminescence (PLu) decay measurements after beta irradiation.
Main Results:
- The synthesized BaZrO3 exhibited a stable crystalline structure.
- TL glow curves showed maxima at 85°C and 165°C.
- Intense PLu was observed after radiation exposure, with reproducible decay curves.
- Integrated PLu showed a linear response to dose from 1.0 to 16 Gy, then sublinear up to 128 Gy.
Conclusions:
- Solid-state synthesized BaZrO3 is a promising phosphor material.
- The material demonstrates reproducible TL and PLu characteristics.
- BaZrO3 is suitable for development into PLu-based radiation detectors and dosimeters.
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