کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8039634 | 1518638 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
X-ray dose response of calcite-A comprehensive analysis for optimal application in TL dosimetry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
The effect of various annealing treatments on dosimetric characteristics of orange calcite (CaCO3) mineral has been studied in detail. Quantitative analysis on the dose response shows that the 573Â K annealed sample showed sublinear dose response from 10Â mGy to 1Â Gy. The fading and reproducibility of this sample are also good enough for dosimetric application. However, a specific annealing treatment after irradiation shows some significant improvements in the dosimetric characteristics of the sample. The 773Â K pre-annealed sample, after X-ray irradiation post-annealing at 340Â K for 6Â min provides linear dose response from 10Â mGy to 3.60Â Gy, very less fading and good reproducibility. Moreover, this sample after post-annealing at 380Â K for 6Â min shows linear dose response from 10Â mGy to 5.40Â Gy when analyzed from the â¼408Â K thermoluminescence (TL) glow peak. Analysis of TL glow curves confirmed that the 1.30Â eV trap center in calcite crystal is the most effective trapping site for dosimetric application.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 383, 15 September 2016, Pages 93-102
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 383, 15 September 2016, Pages 93-102
نویسندگان
J.M. Kalita, G. Wary,