NATURAL RADIOACTIVITY MEASUREMENTS IN SOIL AND DATES SAMPLES FROM GROVES OF THE SHATT AL-ARAB IN BASRAH GOVERNORATE
Abstract
Natural radioactivity of (226Ra, 238U, 232Th, 40K), in Soil and Dates samples calculated from shatt Al-arab in Basra govermente were measured using gamma ray spectroscopy with NaI (Tl).The results showed that the specific activity of (226Ra, 238U, 232Th, 40K (Bq/kg)) in Soil ranges from (1.02, 0.27, 0.45, 219.19) Bq/kg to (11.21, 2.73, 2.77, 389.51) Bq/kg and Dates ranged from (0.58, 0.21, 0.36, 140.20) Bq/kg to (6.57, 1.74, 2.58, 273.66) Bq/kg respectively. The radium equivalent in Soil samples ranged from (11.84) to (40.4) Bq/kg and in Date samples ranged from (13.41) to (25.37) Bq/kg. The annual effective dose equivalent AEDEin in Soils samples ranged from (0.01) - (0.09) µSv/y and for Date samples ranged from (0.03) to (0.07) µSv/y. The results of the internal and external hazard index in Soil and Dates samples were all lower than the value of the global limit.
Keywords
Soil and Dates radioactivity, Sodium iodide NaI, Tl, activity concentrations, Effective RadiumMetrics