کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8208813 | 1532065 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optically and thermally stimulated luminescence characteristics of LaAlO3:Pr3+ beta irradiated
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Optically and thermally stimulated luminescence characteristics of LaAlO3:Pr3+ beta irradiated Optically and thermally stimulated luminescence characteristics of LaAlO3:Pr3+ beta irradiated](/preview/png/8208813.png)
چکیده انگلیسی
This paper reports on an investigation into the thermally stimulated luminescence (TL) and optically stimulated luminescence (OSL) characteristics of novel luminescent phosphor. A new Pr3+-doped, lanthanum aluminate (LaAlO3)-based luminescent phosphor is developed. Samples of LaAlO3:Pr3+ were irradiated to beta doses, in air, from 0.1 Gy up to 50 Gy and then were analyzed using both TL and continuous wavelength OSL (CW-OSL) techniques to determine their luminescent characteristics. This phosphor shows a TL glow curve, after its irradiation to beta radiation, with two TL peaks: one located around 160 °C and a second at 300 °C. CW-OSL response presented a fast decay into the first 20 s of blue light stimulation. TL and CW-OSL response as a function of beta radiation dose were linear in the studied dose range. The high sensitivity of the CW-OSL and TL response will make this phosphor suitable for beta radiation detection. Finally, the kinetic parameters of activation energy, frequency factor and kinetic order were analyzed in the TL response using computerized glow curve deconvolution based on general order kinetic model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 132, February 2018, Pages 57-60
Journal: Applied Radiation and Isotopes - Volume 132, February 2018, Pages 57-60
نویسندگان
M.A. de León-Alfaro, A. Morales-Hernández, J. Roman-Lopez, J. Zarate-Medina, T. Rivera-Montalvo,