کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8208613 1532060 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A hybrid method on sourceless sensitivity calculation for airborne gamma-ray spectrometer
ترجمه فارسی عنوان
یک روش هیبریدی برای محاسبه حساسیت بدون دردسر برای طیف سنج گاما در هوا
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
چکیده انگلیسی
The sensitivity calculation of airborne gamma-ray spectrometer (AGS) is usually performed by on-ground or in-flight calibration. However, both methods are cost-ineffective or not permissive, especially for artificial radioisotopes with short half-lives. Alternative to these methods is the Monte Carlo simulation, which has been widely applied over the last few decades. The greatest challenge to the practicability of the Monte Carlo simulation in the AGS calibration is its low computational efficiency for ensuring an acceptable reliability. This article proposes a hybrid numerical method for the sourceless AGS calibration by combining the deterministic point-kernel approach and the Monte Carlo simulation. This method is not only more efficient than the source-based calibration by an empirical method, but also independent of the source availability for on-ground or in-flight calibration. For a given soil test model, AGS sensitivities calculated by this hybrid method agree well with those obtained from the empirical method for the in-flight calibration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 137, July 2018, Pages 68-72
نویسندگان
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