کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1888342 1533434 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improvement of dose determination using glass display of mobile phones for accident dosimetry
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Improvement of dose determination using glass display of mobile phones for accident dosimetry
چکیده انگلیسی

Previous studies have demonstrated that mobile phones can be used as suitable emergency dosimeters in case of an accidental radiation overexposure. Glass samples extracted from displays of mobile phones are sensitive to ionizing radiation and can be measured using the thermoluminescence (TL) method. A non-radiation induced background signal (so-called zero dose signal) was observed which overlaps with the radiation induced signal and consequently limits the minimum detectable dose. Investigations of several glasses from different displays showed that it is possible to reduce the zero dose signal up to 90% by etching the glass surface with concentrated hydrofluoric acid. With this approach a reduction of the detection limit of a factor of four, corresponding to approximately 80 mGy, was achieved. Dosimetric properties of etched samples are presented and developed protocols validated by dose recovery tests under realistic conditions. With the improvements in sample preparation the proposed method of dose determination is a competitive alternative to OSL/TL measurements of electronic components and chip cards and provides a useful option for retrospective accident dosimetry.


► Glass displays from mobile phones have good potential for emergency dosimetry.
► The background signal can be reduced by etching glass samples with hydrofluoric acid.
► The minimum detectable dose can be lowered to approximately 80 mGy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 56, September 2013, Pages 240–243
نویسندگان
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