کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5438187 1398181 2017 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Scintillation and dosimeter properties of CaF2 transparent ceramic doped with Eu2+
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Scintillation and dosimeter properties of CaF2 transparent ceramic doped with Eu2+
چکیده انگلیسی
We have developed CaF2 transparent ceramics doped with Eu2+(CaF2:Eu) by using spark plasma sintering (SPS), and investigated the scintillation, dosimeter and photoluminescence (PL) properties. Under X-ray irradiation, all the samples showed emission due to self-trapped excitons (STE) and 5d-4f transition of Eu2+ at 300 and 430 nm, respectively. In addition, weak emission due to the 4f-4f transitions of Eu3+ at 570, 590, 615 and 625 nm were also present in all the samples. Under 137Cs irradiation, the light yields of the 0.01, 0.02, 0.05 and 0.1 Eu-doped samples were estimated to be 16,400, 15,400, 17,700 and 14,300 photons/MeV, respectively. Thermally stimulated luminescence (TSL) glow curves of all the samples exhibited glow peaks at 100 and 180 °C, and these intensities increased linearity as a function of X-ray dose from 0.1 to 1000 mGy. Furthermore, the CaF2:Eu showed not only TSL but also optically stimulated luminescence (OSL).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 1, Part A, January 2017, Pages 604-609
نویسندگان
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