کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8040538 1518661 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-temperature scintillation of alumina under 32 MeV 63Cu5+ heavy-ion irradiation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
High-temperature scintillation of alumina under 32 MeV 63Cu5+ heavy-ion irradiation
چکیده انگلیسی
Polycrystalline alumina samples (α-Al2O3, purity: 99.8%) were irradiated with 63Cu5+ ions of 32 MeV kinetic energy (≈0.5 MeV/u) up to fluences of 1014 ions/cm2 at various temperatures ranging from 295 to 973 K. Ion beam induced luminescence and emission spectra were monitored at wavelengths from 320 to 800 nm. Optical absorption measurements were performed to deduce color center formation. Results were evaluated by the Birks model to determine the material's radiation hardness. The applicability of alumina as scintillation screens for ion beam diagnostics could be extended by enhanced temperature operation. Analysis of the emission spectra shows a complex color center formation behavior as a function of fluence and temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 359, 15 September 2015, Pages 161-166
نویسندگان
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