کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1884342 1043339 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
ESR measurements of background doses in teeth of Japanese residents
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
ESR measurements of background doses in teeth of Japanese residents
چکیده انگلیسی

The background doses for the teeth of Japanese residents were obtained by electron spin resonance (ESR) method. The doses obtained from 77 of 92 samples are less than 100 mGy while the doses of the other samples are high up to 250 mGy. The doses for buccal part of the teeth are higher than lingual part possibly due to contributions from dental X ray examination. A positive correlation was found between the ages of the donors and the obtained doses. The averaged annual ESR dose was calculated to be 0.87 mGy/y. These doses have to be considered in actual retrospective dosimetry studies for possible radiation accidents. The statistically significant critical level for Japanese residents would be about 200 mGy for individual doses and about 100 mGy for averaged group doses for α = 5% for those with ages older than 50.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 46, Issue 9, September 2011, Pages 797–800
نویسندگان
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