نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجو
2 تهران، انتهای خیابان کارگر شمالی، سازمان انرژی اتمی ایران، پژوهشگاه علوم و فنون هسته‌ای، پژوهشکده کاربرد پرتوها
3 عضو هیات علمی دانشکده فیزیک و مهندسی انرژی دانشگاه صنعتی امیر کبیر
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
The LiF:Mg,Cu,P thermoluminesence dosimeter (TLD) is a tissue equivalent material with high sensitivity. This dosimeter is widely utilized in thermolumincence (TL) dosimetry. The TL sensitivity of LiF:Mg,Cu,P are affected by changes in the dopant concentrations. In this study, LiF thermoluminescent materials with Mg, Cu and P dopants were prepared in powder form and their sensitivities were examined to different annealing temperatures within 240-400 °C for 10 min. It was found that thermoluminescence intensity decreases with increasing annealing temperature. Also, the optimum concentration of the Cu and the role of the dopants in the LiF:Mg,Cu,Ag material were investigated. TL intensities have an increasing trend with increasing Cu concentration to 0.05 mol% and then reduce. The results of this study indicate that the each of the three dopants Mg, Cu and P appears to play a role in the presence of each other for the decreasing competitor centers and enhancing thermoluminescent sensitivity.
کلیدواژه‌ها [English]
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