کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5489598 1524361 2017 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Luminescence and light yield of (Gd2Y)(Ga3Al2)O12:Pr3+ single crystal scintillators
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Luminescence and light yield of (Gd2Y)(Ga3Al2)O12:Pr3+ single crystal scintillators
چکیده انگلیسی
Praseodymium-doped (Gd2Y)(Ga3Al2)O12 (GYGAG: Pr) single crystals are grown by the micro-pulling down method with different Pr concentrations. The energy transfer process between Pr3+ and Gd3+ is investigated by photoluminescence excitation (PLE) and emission (PL) spectra measurements. Photoelectron yield measurements are carried out using photomultiplier. At 662 keV γ-rays, photoelectron yield of 2520 phe/MeV obtained for the GYGAG: Pr (0.01%) sample is larger than that of 1810 phe/MeV obtained for BGO crystal. Light yield degradation for the GYGAG: Pr scintillators is presumably due to the energy transfer from 5d state of Pr3+ to 4f state of Gd3+ together with the concentration quenching in the Gd3+-sublattice.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 468, 15 June 2017, Pages 369-372
نویسندگان
, , , , , , , ,