این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
International Journal of Radiation Research، جلد ۱۶، شماره ۲، صفحات ۲۰۷-۲۱۵
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Natural radioactivity of some Egyptian materials used in glasses manufacturing and glass ceramics
چکیده انگلیسی مقاله Background: The new glasses from harmful environmental waste such as cement dust; limestone phosphate, sand and borax (Genkare) were manufactured. Investigation of the radioactivity present in these materials (Phosphate rock, cement dust, limestone, sand and borax) enables one to assess any possible radiological hazard to humankind by such materials. Materials and Methods: Fifteen samples were collected from five locations. Activity measurements have been performed by gamma-ray spectrometer, employing a high-resolution scintillation detector NaI (Tl) crystal 3 ×3 inch. In addition, the radiological hazards were calculated for the investigated samples. Results: The average values of activity ranged from 28±2 to 163±12, 2.8±0.7 to 40±3 and from 49±4 to 1337±74 Bq kg-1 for 226R, 232Th and 40K, respectively. The values of absorbed dose rates, radium equivalent activities and annual effective dose due to 226Ra, 232Th and 40K respectively, are ranged from 22.05 to 101.59 nGy h-1, 45.90 to 224.22 Bq kg-1 and 27.04 to 124.59 µSv y-1. In addition, the values of external hazard index, internal hazard index and gamma index have been calculated.  Conclusion: According to the obtained results, all materials would not present a significant radiological hazard except phosphate. The results of the study could serve as important baseline radiometric data for future epidemiological studies and monitoring initiatives.  
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله | R. Elsaman
Physics Department, Faculty of Science, Al–Azhar University, Assiut 71524, Egypt


| G. A. M. Ali
Chemistry Department, Faculty of Science, Al–Azhar University, Assiut, 71524, Egypt


| M. A. M. Uosif
Physics Department, Faculty of Science, Al–Azhar University, Assiut 71524, Egypt


| K. H. S. Shaaban
Chemistry Department, Faculty of Science, Al–Azhar University, Assiut, 71524, Egypt


| Y. B. Saddeek
Physics Department, Faculty of Science, Al–Azhar University, Assiut 71524, Egypt


| K. A. Aly
Physics Department, Faculty of Science, Al–Azhar University, Assiut 71524, Egypt


| K. F. Chong
Faculty of Industrial Sciences and Technology, University Malaysia Pahang, Gambang, 26300 Kuantan, Malaysia
نشانی اینترنتی http://ijrr.com/browse.php?a_code=A-10-1-718&slc_lang=en&sid=1
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/42/article-42-724316.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Radiation Biology
نوع مقاله منتشر شده تحقیق بدیع
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات