This study deals with the measurement of the specific activity radiation for beryllium -7 isotope in Baghdad city for samples of surface soils, by using gamma ray spectrometer technique. Twenty one samples were collected from surface soil of Baghdad city from Risafa and Karkh sides, (7) samples from Risafa side and(14) samples from Karkh side, where the axis for locations which are fixed by using (G.P.S.) . Gamma-ray spectrometry system (DSA 2000) with high purity germanium detector was used, which has (50%) efficiency and resolution of (2.2 keV) at gamma line (1332 keV) of 60Co source. The specific activity values for beryllium -7 isotope in surface soil of Risafa and Karkh sides, ranged between (B.D.L.- 32.827  6.636) Bq/kg for Risafa soil , and (B.D.L.-23.660  3.703) Bq/kg for Karkh soil. While the average of beryllium -7 isotope in surface soil of Baghdad city from Risafa and Karkh sides would be (32.827±6.636) Bq/kg & (23.660±3.703) respectively. The results showed that the most samples have a specific activity for beryllium -7 isotope which is higher than that for normal limits of international levels because of falls of atmosphere dust resulting from sun reactions.
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                                        Publication Date
                                    
                                    
                                        Mon Apr 10 2017
                                    
                                
                                        Journal Name
                                    
                                    
                                        Ibn Al-haitham Journal For Pure And Applied Sciences
                                    
                                
                                        Volume
                                    
                                    
                                        27
                                    
                                
                                        Issue Number
                                    
                                    
                                        3
                                    
                                
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                        Measurement of The Specific Activity For Beryllium-7 Isotope in Soil of Baghdad City Using Gamma Ray Spectrometry
                    
                                        
                    
                    
                            
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