کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5467254 1518614 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ion beam radiation effects on natural halite crystals
ترجمه فارسی عنوان
اثرات تابش یون بر روی بلورهای طبیعی هالیت
کلمات کلیدی
هالیت طبیعی، اشعه ماوراء بنفش پروتون مراکز رنگ، طیف سنجی، میکروسکوپ الکترونی اسکن،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
چکیده انگلیسی
Halites are one of the interesting material due to its color variations. Natural halites whose color ranges from transparent to dark blue were studied by UV-VIS and Raman spectroscopy. The halite crystals were irradiated with 3 MeV proton micro-beam (∼20 μm beam width with ∼80 PA beam current) for 10 and 90 min to study the radiation damage. After 10 mins of irradiation, small spot developed on the surface of transparent halite crystal whereas after 90 mins of irradiation the spot spread inside the bulk leading to a brown coloration (20 µm initial size to ∼2.0 mm final size). The irradiated portion and the un-irradiated portion of the halites was characterized by Raman spectroscopic technique. The variation in the population density was observed from the UV-Vis spectra. The change in the Raman band intensities was observed for transparent, blue colored and proton beam irradiation halites. Such variation of spectroscopic characteristics due to proton irradiation suggests that the halite can be used for the radiation monitoring.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 409, 15 October 2017, Pages 216-220
نویسندگان
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