Speaker
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Abstract content <br> (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>
Thermoluminescence characteristics of Sm3+ activated NaSrBO3 phosphors synthesized by solid state method and combustion method have been studied. The phosphors were investigated for their crystal structure using powder X-ray diffraction. A Thermoluminescence (TL) study was carried out after exposing the samples to γ-radiation in the range of 0.01-5 kGy. The TL glow curves exhibited a prominent peak at a lower temperature 402 K and a small hump at 466 K for the samples synthesized by combustion method whereas the glow peaks position shifted towards higher temperature for the samples synthesized by solid state method. The intensity of the peaks raised with the increase in the dose of the gamma rays (0.01–5 kGy). The TL intensity has also improved when synthesis by combustion method. The phosphors exhibited sublinear TL response to gamma-radiation over a wide range of gamma doses (0.01–5 kGy). To analyze the glow curves the TLanal program was used at different doses (0.2–5 kGy). In addition to this, the trapping parameters of all the samples were also calculated using Chen's peak shape method.
Main supervisor (name and email)<br>and his / her institution
H. C. Swart,Department of Physics, UFS, P.O. Box 339, Bloemfontein, ZA9300, South Africa (email:swarthc@ufs.ac.za)
Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)
Yes
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
Yes
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
PhD
