کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10148002 | 1646512 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Scintillation properties of Eu:BaFBr crystal
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Eu:BaFBr is typically used in a ceramic form for imaging plate, and it has not been commonly studied in a single crystal form and for scintillator applications. In this study, we prepared Eu:BaFBr single crystal by the Bridgeman method and then evaluated the scintillation properties. The crystal showed an intense scintillation emission spectrum under X-ray excitation with a peak appeared at 395â¯nm due to the 5d-4f transitions of divalent Eu ion, and the scintillation decay time under X-ray irradiation was 1.4â¯Î¼s. When we irradiated with γ-rays by 137Cs, a clear photoabsorption peak was observed in the pulse height spectrum, and the scintillation light yield was estimated to be 27000â¯ph/MeV. By using various radio isotopes, we investigated the relation between peak channels of photoabsorption peak and γ-ray energy, and we confirmed a linear relationship from 60â¯keV to 1.27â¯MeV. To the best of our knowledge, this is the first report of Eu:BaFBr crystal demonstrating as a scintillator for γ-ray detections.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 550, 1 December 2018, Pages 21-25
Journal: Physica B: Condensed Matter - Volume 550, 1 December 2018, Pages 21-25
نویسندگان
Takayuki Yanagida, Hiroyuki Fukushima, Go Okada, Noriaki Kawaguchi,