کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1889218 | 1533450 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Radio-luminescence efficiency and rare-earth dispersion in Tb-doped silica glasses
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
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چکیده انگلیسی
A set of terbium-doped silicate glasses densified up to 1050 °C was prepared by the sol–gel method. A broad range of dopant concentrations (0.001–10 mol%) was considered together with an undoped sample as a reference. The effects of a high-temperature (1600–1800 °C) post-densification rapid thermal treatment (RTT) on the luminescence properties of the samples were investigated. RTT enhances the scintillating efficiency of the samples increasing the radio-luminescence intensity up to two orders of magnitude. The relevant effects induced by RTT on radio- and photo-luminescence spectra (RL, PL) and on PL decay curves indicate the occurrence of modifications of the surroundings of Tb3+Tb3+ luminescence centres.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 42, Issues 4–5, April–May 2007, Pages 784–787
Journal: Radiation Measurements - Volume 42, Issues 4–5, April–May 2007, Pages 784–787
نویسندگان
Mauro Fasoli, Federico Moretti, Alessandro Lauria, Norberto Chiodini, Anna Vedda, Martin Nikl,