کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7840126 | 1505864 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phototransferred thermoluminescence of synthetic quartz: Analysis of illumination-time response curves
ترجمه فارسی عنوان
ترمولومینسانس انتقال فوتو کوارتز مصنوعی: تجزیه و تحلیل منحنی های پاسخ نور زمان
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کلمات کلیدی
مصنوعی کوارتز، انتقال حرارت ترمولومینسانس، تجزیه و تحلیل سینتیک، مدل ها،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Phototransferred thermoluminescence (PTTL) induced in synthetic quartz by 470â¯nm blue light is reported. The glow curve measured at 5â¯Â°C/s up to 500â¯Â°C after irradiation to 100â¯Gy shows six peaks at 94, 116, 175, 212, 280 and 348â¯Â°C labelled I through VI and another one at 80â¯Â°C (labelled A1). PTTL is only observed for peaks A1 and I and is induced at peak A1 as long as peak III has been removed by preheating and at peak I after preheating to deplete peak VI. The inducement of PTTL even when all peaks have been removed points to deep electron traps in the quartz also acting as donors in addition to the putative ones below 500â¯Â°C. The PTTL intensity as a function of duration of illumination for A1 goes through a peak and decreases monotonically or to a stable value depending on the preheating temperature. The change of PTTL intensity as a function of illumination time is described using a set of coupled linear differential equations. The number of acceptors and donors in a particular system described in this way is influenced by the preheating temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 198, June 2018, Pages 146-154
Journal: Journal of Luminescence - Volume 198, June 2018, Pages 146-154
نویسندگان
M.L. Chithambo, P. Niyonzima, J.M. Kalita,