Abstract
This study aims to assess the concentrations of natural radionuclides activity (226Ra,232Th and 40K) and calculate a number of radiation risk indicators in some types of field crops in different areas of Tikrit City - Salah Al-Din Governorate - Iraq. The measurement was carried out using a gamma ray spectroscopy connected with a scintillation detector crystallized with thallium-activated sodium iodide NaI(TI). The results were that t 0……he mean concentrations of elements (226Ra,232Th and 40K) wer (6.79±0.33 1Bq/Kg,10.79 ± 0.640 Bq/Kg, 133.34± 5.895 Bq/Kg), respectively. And the radiation risk indicators were less than the international permissible and the recommended average, so that the samples under study are safe and suitable for human and animal consumption.
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