期刊
RADIATION PHYSICS AND CHEMISTRY
卷 137, 期 -, 页码 45-48出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2016.10.004
关键词
Borate glass; Dysprosium oxide; Phosphorus oxide; Thermoluminescence; Photoluminescence
资金
- Ministry of Education, Malaysia
- Universiti Teknologi Malaysia (UTM) through the Research University Grant Scheme (RUGS) [10H60, 13H39]
Lithium magnesium borate (LMB) glass system co-doped with the oxides of dysprosium (Dy2O3) and phosphorus (P2O5) were synthesized using melt-quenching method. Prepared samples were characterized using various techniques to determine the effects of co-dopants concentration variation on their thermoluminescence (TL) and photoluminescence (PL) properties. TL glow curves of LMB:0.5Dy sample revealed a single prominent peak at T-m=190 degrees C, where TL intensity was enhanced by a factor of 2.5 with the increase of P2O5 concentration up to 1 mol%. This enhancement was accompanied by a shift in T-m towards higher temperature. Good linearity in the range of 1-100 Gy with linear correlation coefficient of 0.998 was achieved. PL spectra displayed two significant peaks centred at 481 nm and 573 nm. These attractive luminescence features of the proposed glass system may be useful for the development of radiation dosimetry.
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