کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1881363 1533452 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Equivalent dose in quartz from young samples using the SAR protocol and the effect of preheat temperature
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Equivalent dose in quartz from young samples using the SAR protocol and the effect of preheat temperature
چکیده انگلیسی

Major concerns in the dating of samples younger than a few hundred years by the optically stimulated luminescence (OSL) technique are thermal transfer and partial bleaching. Thermal transfer during preheating enhances the OSL signal due to the charge transfer from thermally sensitive, but light-insensitive, traps to optical centres of quartz and results in an overestimate in equivalent dose, especially for very young samples. In this study, the single-aliquot regenerative-dose protocol is used to obtain values of equivalent dose (De)(De) from young samples taken from various environments around Istanbul. Within this framework, we aim to investigate the effect of preheat temperature on equivalent dose from 150 to 300∘C, the reproducibility of DeDe measurements for young deposits and the contribution from thermal transfer of charge to the equivalent dose estimation. It was observed that the measured dose is influenced significantly by preheat temperature and the increase in the DeDe is clearly due to thermal transfer of charge from deep thermally sensitive traps to OSL trap during preheating of the samples prior to the main OSL measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 41, Issues 7–8, August–September 2006, Pages 917–922
نویسندگان
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