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Measurement of the natural radiation of soil samples from official offices in the city of Baghdad (Al-Karkh)
قياس النشاط الإشعاعي الطبيعي لنماذج من ترب الدوائر الرسمية لمدينة بغداد (جانب الكرخ)

Authors: Ali K. hasan and Masar E. Mahdi علي خلف حسن --- Masar E. Mahdi مسار عماد مهدي
Journal: Albahir journal مجلة الباهر ISSN: 23125721 Year: 2015 Volume: 1 Issue: 1,2 Pages: 45-52
Publisher: AL-Abbas Holy Shrine العتبة العباسية المقدسة

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Abstract

Abstract Twenty – four soil samples were collected from the official offices at Al-Karkh side in the city of Baghdad to measure the effective radiation doses of these samples using a gamma – ray spectrometer, by high purity germanium detector (HPGe). The detection of radionuclide and the values of specific activity were calculated by using (GINE-2000) program. It was found that the rate of specific activity of the nuclide (214Bi or 214Pb) was equivalent to the specific activity of (238U) at (13.88±0.69) Bq/ kg, while its average value for (228Ac or 212Pb) was (15.73±0.86) Bq/kg which is equivalent to the specific activity of (232Th). The average value of specific activity of (40K) was (317.58±14.11) Bq/kg and for (137Cs) was (1.83±0.27) Bq/kg. Then the average value of the absorbed dose in air and the annual effect dose for Al-Karkh side were (29.80±1.50) nGy. h-1 and (36.54±1.84) µsv. y-1 respectively.

ﺍﳋﻼﺻﺔ ﺍﺭﺑﻊ ﻭﻋﴩﻭﻥ ﻧﻤﻮﺫﺝ ﲨﻌﺖ ﻣﻦ ﺟﺎﻧﺐ ﺍﻟﻜﺮﺥ ﰲ ﻣﺪﻳﻨﺔ ﺑﻐﺪﺍﺩ ﻟﻘﻴﺎﺱ ﻣﺴﺘﻮ￯ ﺍﻟﻨﺸﺎﻁ ﺍﻹﺷﻌﺎﻋﻲ ﳍﺬﻩ ﺍﻟﻨﲈﺫﺝ ﻟﻠﻜﺸﻒ (GINE-2000) ﻭﺍﺳﺘﺨﺪﻣﺔ ﺑﺮﻧﺎﻣﺞ (HPGe)ﺑﺈﺳﺘﺨﺪﺍﻡ ﻣﻄﻴﺎﻑ ﺃﺷﻌﺔ ﻛﺎﻣﺎ - ﻛﺎﺷﻒ ﺍﳉﺮﻣﺎﻧﻴﻮﻡ ﻋﺎﱄ ﺍﻟﻨﻘﺎﻭﺓ ( ﻛﺎﻧﺖ ﻣﻜﺎﻓﺌﺔ 214Pb)( ﺍﻭ 214Biﻋﻦ ﺍﻟﻨﻈﺎﺋﺮ ﺍﳌﺸﻌﺔ ﻭﻗﻴﻢ ﺍﻟﻔﻌﺎﻟﻴﺔ ﺍﳋﺎﺻﺔ ﲠﺎ ﻭﻗﺪ ﻭﺟﺪﻩ ﺑﺄﻥ ﺍﻟﻔﻌﺎﻟﻴﺔ ﺍﳌﺤﺪﺩﺓ ﻟﻠﻨﻀﲑ ) (15.73±0.86) ( ﻛﺎﻥ 212Pb) ( ﺍﻭ 228Ac)ﺑﻴﻨﲈ ﻣﻌﺪﻝ ﺍﻟﻘﻴﻤﺔ ﻟﻠـ (13.88±0.69) Bq/kg,( ﻋﻨﺪ 238Uﳌﺴﺘﻮ￯ ﺍﻟﻔﻌﺎﻟﻴﺔ ﻟﻠـ) (137Cs ﻭﻟﻠـ )(317.58±14.11) Bq/kg ( ﻛﺎﻥ40K( ﻭﻣﻌﺪﻝ ﻗﻴﻤﺔ ﺍﻟﻔﻌﺎﻟﻴﺔ ﻟﻠـ)232Thﻭﺍﻟﺬﻱ ﻳﻜﺎﻓﺊ ﺍﳋﺎﺻﺔ ﺑـ)Bq/kg ﻭﺇﻥ ﻣﻌﺪﻝ ﻗﻴﻤﺔ ﺍﳉﺮﻋﺔ ﺍﳌﻤﺘﺼﺔ ﰲ ﺍﳍﻮﺍﺀ ﻭﺗﺄﺛﲑ ﺍﳉﺮﻋﺔ ﺍﻟﺴﻨﻮﻳﺔ ﳉﺎﻧﺐ ﺍﻟﻜﺮﺥ ﻛﺎﻧﺖ (1.83±0.27) Bq/kgﻫﻮ ﻋﲆ ﺍﻟﺘﻮﺍﱄ. (36.54±1.84) µsv. y-1ﻭ(29.80±1.50) nGy. h-1

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