Abstract
The chemical co-precipitation method was used to prepare Ba0.88Sr0.12SO4:Dy1.5mol%,Tb1mol% nanocrystalline powder. Ba0.88Sr0.12SO4:Dy1.5mol%,Tb1mol% pellets were fabricated in order to measure gamma ray irradiation. A main TL glow peak around 207 °C, a small peak at 157 °C and a good linear response for doses in the range of 0.01–5 kGy were observed. The TLE spectra of the pellets were recorded at 207 °C. The results of energy response showed that these pellets are energy dependent. The pellets showed fading about 18% during 4 weeks of storage time. The effect of different heating rates on the TL glow peaks of prepared pellets which were recorded after a gamma exposure of 5 kGy was investigated. The intensity of TL glow curves was decreased by an increase in heating rate from 2 °C/s up to 6 °C/s. The dosimetric results showed that the Ba0.88Sr0.12SO4:Dy1.5mol%,Tb1mol% pellets could be useful for monitoring gamma radiation for accidental dose assessment.
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Rezaee Ebrahim Saraee, K., Lotfi, M. Gamma Ray Dosimetric Properties of Tb- and Dy-doped Ba0.88Sr0.12SO4 Phosphor. Iran J Sci Technol Trans Sci 44, 1549–1558 (2020). https://doi.org/10.1007/s40995-020-00945-w
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DOI: https://doi.org/10.1007/s40995-020-00945-w