کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8250255 | 1533384 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Radiophotoluminescence and optically stimulated luminescence from Al2O3:C,Mg films using a 1D modular reader
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The radiophotoluminescence (RPL) and optically stimulated luminescence (OSL) combined signals from Al2O3:C,Mg films were investigated in the dose range of interest in radiotherapy medical dosimetry (0.1-40Â Gy). The results showed that the RPL signal is linear over the dose range investigated. The systems based on red excitation have a better dose detection range (starting from 0.2Gy), compared to the system based on UV excitation (1Â Gy). The RPL dose measurements are performed using a modular system by illumination of the Al2O3:CMg detectors with 335Â nm or 650Â nm light and measuring the intensity of the 750Â nm fluorescence, while OSL is measured using the modular system with blue 470Â nm light. We demonstrated the feasibility of combining RPL and OSL readouts by proposing a protocol where one can acquire cumulative dose response (RPL) and dose reproducibility (OSL). The main challenge was to account for sensitization caused by accumulated dose when using the OSL technique, without affecting the RPL readouts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 106, November 2017, Pages 218-224
Journal: Radiation Measurements - Volume 106, November 2017, Pages 218-224
نویسندگان
L.F. Nascimento, M. Karampiperi, J.P. Oliveira, F. Vanhavere,