کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8208854 | 1532063 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Large area alpha sources with a lip: Integral counting and spectral distortions
ترجمه فارسی عنوان
منابع آلفای منطقه ای بزرگ با یک لب: شمارش انتگرال و تحریف طیفی
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کلمات کلیدی
مقادیر معکوس، منابع بزرگ منطقه، هندسه منبع، مونت کارلو،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
چکیده انگلیسی
The detection efficiency for large area alpha sources with adjustable heights of a raised lip around the edge were measured by 2Ï gas-filled proportional counter. The variations in low-energy spectral shape were modeled using a Geant4 radiation and charge transport Monte Carlo simulation, to enable extrapolation of the spectrum to zero energy. COMSOL Multiphysics finite-element analysis was used to explore changes in the spectrum gain in the presence of a lip. It qualitatively reproduced an increase in peak height due to an increasing height of the source lip. A spectrum analysis procedure was developed to perform integral counting on sources with a lip. The experimental results were used to validate the model, which was then used to predict the changes in 2Ï counting efficiency for other source-lip geometries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 134, April 2018, Pages 376-379
Journal: Applied Radiation and Isotopes - Volume 134, April 2018, Pages 376-379
نویسندگان
Lynne King, Ryan Fitzgerald, Ronald E. Tosh,