| Authors | M. Rahimi- M. Zahedifar- E. Sadeghi1 |
|---|---|
| Journal | Radiation Protection Dosimetry |
| Page number | 360–367 |
| Paper Type | Full Paper |
| Published At | March 2018 |
| Journal Grade | ISI |
| Journal Type | Typographic |
| Journal Country | Iran, Islamic Republic Of |
Abstract
Lithium tetraborate (Li2B4O7) nanoparticles (NPs) doped with manganese (Mn) were prepared for the first time by the solidstate
sintering method. NPs were characterized using X-ray diffraction, scanning electron microscopy, photoluminescence and
thermoluminescence (TL) techniques. The synthesized NPs exhibited highest TL response at 0.3 wt% of Mn dopant under
gamma irradiation. TL dose response is linear for the absorbed dose from 1 Gy to 20 kGy and beyond this range behaves sublinear.
Such feature makes the synthesized nanophosphor as a promising material for high-dose dosimetry applications. Low
fading and good reusability were obtained for the synthesized NPs. Tm−Tstop and computerized glow curve deconvolution procedures
were utilized to identify the component TL glow peaks and kinetic parameters of the produced phosphor. Other TL
dosimetry features of the prepared NPs are also presented and discussed.