%0 Journal Article %T Thermoluminescence Characterization Of Gama-ray Irradiated Dy3+ Activated SrAl4O7 Nanophosphor %J Advanced Materials Letters %I International Association of Advanced Materials %Z 0976-3961 %A Kumar Choubey, Anil %A Brahme, Nameeta %A Dhoble, S.J. %A P. Bisen, D. %A Ghormare, K.B. %D 2014 %\ 07/01/2014 %V 5 %N 7 %P 396-399 %! Thermoluminescence Characterization Of Gama-ray Irradiated Dy3+ Activated SrAl4O7 Nanophosphor %K thermoluminescence %K combustion synthesis %K strontium aluminate %R 10.5185/amlett.2014.amwc.1210 %X Dy doped strontium aluminate phosphor (SrAl4O7:Dy(15% molar concentration)) was synthesized by combustion method using urea as a reducer at initiating temperature of 600oC. The absorption spectra shows the absorption edges at l = 242 nm, thus the band gap of 5.11 eV. The Thermoluminescence (TL) property of Dy(15%) doped SrAl4O7 nanophosphor has been investigated for l-irradiation. The TL glow curve of SrAl4O7:Dy (15%) phosphor with different ?-ray doses show the dose increases the TL- intensity while the temperature corresponding to maximum intensity remains nearly same. The maximum TL-intensity observes around 172.84 oC for the different doses. It was found that TL intensity strongly depends upon the -dose. It shows linear response upto 2.36 kGy. Hence Dy(15%) doped SrAl4O7 could be used for TL Dosimetry upto 2.36 kGy. %U https://aml.iaamonline.org/article_14535_ad990a9d772a6b8fca3ec21ce61a00f5.pdf