Measurement the average gamma rate radiation for some regions in Baghdad city

Ra'afat k. Ahmed

Abstract


The assessment of radiation dose from natural sources is important because natural ionizing radiation is the largest contributor to the collective effective dose received by the world's population. Measured gamma dose rate in indoor and outdoor environments estimated corresponding annual effective dose for some regions in Baghdad city. Indoor and outdoor environmental gamma dose rates were measured using Inspector Exp instrument, in 6 selected regions [A, B, C, D, E and F]. the average dose rates in air resulting from gamma background radiation indoor and outdoor were 121 ± 22 nSv.hr-1 and 111 ± 24 nSv.hr-1 with range 95 – 147 nSv.hr-1 and 80 – 150 nSv.hr-1 respectively. Then the annual average effective dose of residents regions was 0.729 mSv.

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