عناصر مشابهة
Radon Concentration Due to Alpha Contribution Effects of Soil and Rock Samples in Different West and Midlibyan Regions
| المصدر: | مجلة التربوي |
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| الناشر: |
جامعة المرقب - كلية التربية بالخمس
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| المؤلف الرئيسي: | |
| مؤلفين آخرين: | |
| المجلد/العدد: | ع21 |
| محكمة: | نعم |
| الدولة: | ليبيا |
| التاريخ الميلادي: | 2022 |
| الصفحات: | 657 - 674 |
| ISSN: | 2011-421X |
| رقم MD: | 1306157 |
| نوع المحتوى: | بحوث ومقالات |
| اللغة: | English |
| قواعد المعلومات: | EduSearch |
| مواضيع: | |
| رابط المحتوى: |
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| المستخلص: | The activity concentration of natural radioactivity for soil samples collected from western and mid Libyan regions were measured using HP Ge detector. The average activity concentration of 226Ra, 232Th and 40K for ten samples were found to be 51.86±7.14, 75.56±10.95 and 128.98±6.88 Bq/kg respectively. 235U was detected for six samples with average activity 8.6±1.0 Bq/kg. The results obtained for the corresponding nuclides 226Ra and 232Th are above worldwide average values (35 and 30 Bq/kg) while 40K was smaller than worldwide average (400 Bq/kg). The average outdoor absorbed dose and the annual effective dose rates due to 226Ra, 232Th and 40K were observed to be 21.51±2.93 nGy/h and 0.297±.03 mSv/y respectively, which are lower than world average values (60nGy/h and 0.8 mSv/y). The radium equivalent activity and external hazard indices were found less than the world wide average values. |
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