Y S M Alajerami1, KH M Abushab1, S Hashim2, M A Saleh2 and M H A Mhareb2
1Al-Azhar University, Palestine 2Universiti Teknologi Malaysia, Malaysia
Posters-Accepted Abstracts: J Phys Chem Biophys
We have reported the dosimetric properties of lithium potassium borate (LKB) doped with different concentrations of Eu3+ ions.The current glasses have been produced by melting the chemical mixtures of Li2CO3, B2O3 and K2CO3 at 1100oC and then quenched to room temperature. The samples are characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and diffraction thermal analysis (DTA). The luminescence spectra show four characteristic bands at 590, 613, 650 and 698 nm, which attributed to 5D0â??7F1(yellow), 5D0â??7F2(orange), 5D0â??7F3(red) and 5D0â??7F4(red) transitions of trivalent Eu3+ ions. The glow curve for undoped LKB sample was observed at 180?°C. The Eu3+-doped sample show prominent TL glow peaks at 220?°C when heated at a constant heating rate of 5?°C.s1. The proposed dosimeter shows a well-defined glow curve, good linearity, good effective atomic number and minimal fading response.
Email: yasser_ajr@hotmail.com
