Measurement of natural radioactivity in the soil of Kufa City-Iraq

Abstract EN

The natural radioactivity in soil has been determined by using gamma-ray Spectroscopy technique.

The (average) and (range) of specific activity (in Bq / kg Units) of the primordial nuclides were (8.73) (1.82 to 24.71), (4.75) (1 to 9.44) and (103.05) (47.27 to 206.67) for 238U, 232Th and 40K respectively.

The value of Radium Equivalent activity (in Bq / kg units) was found to be varied from 11.54 to 42.61 with An average of 23.47.

The absorbed dose calculations (in ngy/h units) showed that the Minimum value was 5.57 whereas the maximum value was 20.07 with an average of 11.28.

The indoor and outdoor annual effective dose rate (in ?Sv/y units) and Internal and external hazard indexes were calculated.

A comparison with the world Wide average indicated that the study area does not form dangerous from the Radiological protection point view.