کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9845871 | 1526522 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Studies of nanocrystalline rare earth gallate and aluminate scintillators prepared by a new method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Powdered gallates and aluminates of rare earth metals doped with rare earth activators of scintillations have been synthesized by a new method based on dissolving of initial oxides or nitrates in ammonium nitrate mel (at about 200 °C). Subsequent annealings in the range from 500 °C to about 1000 °C resulted in gradual modifications of the dimensions of the grains in nanoscopic range from 2 to 3 nm to more than 100 nm. The studies of the spectra of photo- and X-ray luminescence showed that the structure of radiative electron transitions was modified in parallel with variations of the grain sizes of the materials. Essential increase of the light emission by optimal nanocrystalline structure was obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 537, Issues 1â2, 21 January 2005, Pages 149-153
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 537, Issues 1â2, 21 January 2005, Pages 149-153
نویسندگان
Semion Z. Shmurak, Galina K. Strukova, Ivan M. Smyt'ko, Nikolay V. Klassen, Nikolay P. Kobelev, Stephen E. Derenzo, Marvin J. Weber,