کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5498971 1533395 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement of radon in air using a radon-218Po calibration curve determined by an absorptive non-volatile liquid scintillator
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Measurement of radon in air using a radon-218Po calibration curve determined by an absorptive non-volatile liquid scintillator
چکیده انگلیسی
This work reports a novel method for determining 222Rn (radon) in air using a radon-218Po calibration curve constructed by an absorbable non-volatile liquid scintillator (NVLS). The ability of this method to detect low natural concentrations of radon was confirmed from linear extrapolation of the curve between 500 and 8000 Bq/m3. The calibration curve was created from data obtained from measurements performed in a radon calibration chamber at the National Institute of Radiological Science (NIRS) by using the least-squares method. The line had high precision and stability, and the required detection time was less than that of 214Po. An absorptive NVLS was used to collect radon and was found to be highly advantageous for α-spectrometry liquid scintillation measurements. Variations of the Ostwald coefficient due to changes in temperature and humidity, which affect radon absorption, were investigated and discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 95, December 2016, Pages 25-30
نویسندگان
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