Study of Thermal Treatment and Kinetic Parameters of Prepared Li2B4O7: Cu Thermoluminescence Dosimeter | ||||
| Egyptian Journal of Solids | ||||
| Article 10, Volume 23, Issue 1, 2000, Page 103-111 PDF (107.14 K) | ||||
| DOI: 10.21608/ejs.2000.151480 | ||||
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| Abstract | ||||
| Different concentrations from copper were added to lithium borate, as a doping material to get a good dosimeter compatible with the commercial one. It was found that the gradual addition of Cu to Li2B4O7 causes gradual enhancement in the TL intensity up to a concentration value of 0.023 wt%, above that a draw back on the TL intensity occurs. It was also found that for preparation of this dosimeter the optimum sintering temperature was 850°C for 1 hour followed by quenching in liquid nitrogen. The use of liquid nitrogen as a cooling agent after the sintering treatment increases the phosphor sensitivity with about 4 times. Moreover, the kinetic parameters of the main peak of Li2B4O7:Cu phosphor was calculated and it stood in good agreement with the previous work. So, Li2B4O7:Cu phosphor can be prepared in the laboratory with high quality and can be used for radiation protection dosimetry applications. | ||||
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