کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1739656 1016875 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A note on 207Bi in environmental samples
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
A note on 207Bi in environmental samples
چکیده انگلیسی

Traces of the radionuclide 207Bi were identified in soil and cryoconite (glacier sediment) samples from Alpine regions of Austria. This nuclide has been produced in thermonuclear explosions mainly in the early 1960s and subsequently dispersed in the atmosphere. Activity concentrations up to 22 Bq/kg d.m. have been found. The ratio 207Bi:137Cs(global fallout) equals (1.70 ± 0.12)10−3, which is in accordance with literature data. When low levels of 207Bi are assessed by gamma spectrometry, corrections must be made for a gamma line produced in the lead shield by neutron activation due to cosmic neutrons.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Radioactivity - Volume 91, Issue 3, 2006, Pages 160–166
نویسندگان
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