این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
International Journal of Radiation Research، جلد ۲، شماره ۴، صفحات ۲۱۱-۲۱۳
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Gross beta activities and Beryllium-7 concentrations in surface air
چکیده انگلیسی مقاله ABSTRACT Background: were made each week during year 2002 from samples of atmospheric aerosols filtered from theair at Tehran Nuclear Research Center.Measurement of gross beta activities and cosmogenic Beryllium-7 concentrationsMaterials and Methodssampler at the Nuclear Research Center meteorological station in Tehran (40contents of samples were determined with semiconductor gamma spectrometry. The long-livedbeta activity, i.e. total beta activity measured four days after the end of sampling (after decay of: The aerosol samples were collected weekly with high-volume airo 35. N). The 7Be220The long-lived beta activity consists mainly of amount of artificial radionuclides in the air is negligible.Rn progeny and short-lived 220Rn progeny), was assessed with an automatic beta analyzer.210Bi, the daughter nuclide of 210Pb, as theResults: lognormal distribution during the study period 2002. The arithmetic mean of annual concentrationsof The air concentrations of both the 7Be and the long-lived beta activity displayed a7Be and 210 Pb was 6.30 and 0.50 mBqm-3, respectively .Conclusion: beta activities are partially correlated. Both have maximum concentrations during warmmid-year months. Despite the different origins, the concentrations of both the 7Be and the long.livedIran. J. Radiat. Res., 2005 2 (4): 211-213
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله f ارکیان | f arkian
iranian nuclear regulatory authority, national radiation protection department, tehran, iran


j عمیدی | j amidi
iranian nuclear regulatory authority, national radiation protection department, tehran, iran
نشانی اینترنتی http://www.ijrr.com/browse.php?a_code=A-10-1-88&slc_lang=en&sid=en
فایل مقاله فایلی برای مقاله ذخیره نشده است
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