STUDY OF TIME MEASURED FACTOR ON MEASURING RADON CONCENTRATIONS IN GROUND WATER

Radon concentration measurements were performed in all 24 samples of ground water at four locations in Al-Haidariya hand in Najaf, Iraq, using active RAD-7 continual radon measuring instruments. The radon concentrations were measured at different time (0, 24, 48, 72, 96 and 120) hour for determining daily correction factor in groundwater samples using the least-squares fitting method.