کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9845908 1526522 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Significant increase in fast scintillation component from PbWO4 by annealing
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Significant increase in fast scintillation component from PbWO4 by annealing
چکیده انگلیسی
Increase in the light yield (LY) of lead tungstate PbWO4 (PWO) more than a few times within ∼200 ns is required to utilize PWO in Positron Emission Tomography (PET) in competition with Bi4Ge3O12 (BGO). While the (Mo, Cd, Sb) co-doping increases the (LY) more than twice (Nucl. Instr. Meth. A 486 (2002) 170), much slower component (∼20 ms) accompanies. We have found that long-time annealing of non-doped PWO in low-pressure Ar gives even larger LY in the fast component with much less in the slower one than the (Mo, Cd, Sb) co-doping. This improvement could also be useful in high energy and nuclear experiments.
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 1–2, 21 January 2005, Pages 312-316
نویسندگان
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