The activity concentrations of the NORM were measured in thirty samples of plant cultures in agricultural soil irrigated with groundwater from different locations in the Makkah region in Saudi Arabia, using a high purity germanium detector HPGe system. The mean values of the activity concentrations for Ra, Th, and K were found in plants samples 10.41, 1.92, and 4154.92 in Bq. kg, for agricultural soil samples were 18.11, 16.12, and 1603.73 Bq. kg respectively, and the irrigation water samples were found 1.57, 0.58, and 118.44 Bq. l respectively. The mean values of Ra, dose rate, annual effective dose, hazard indices H and H were 333.09 Bq. kg, 179.23 nGy h, 1.09 mSv.y, 0.89 and 0.92 respectively for plant samples. The gamma doses were higher than world limit values and the H and H were less unity. The mean values of annual effective doses for ingestion of radionuclides in the plants samples were 2.12 mSv.y for children and 1.86 mSv.y for adults, these results were higher than the world values. These results indicate that, the highest doses refer to the samples location in farm 1, while the lowest values were in farm 3 and farm 6, while the other farms were relatively high than recommended dose values. So, samples of soil, water and plant must be studied in the farm 1 for the highest results of the annual effective doses mSv.y of ingestion of radionuclides in the plants samples for children and adults.

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西部地区自然辐射测量、农业环境样品辐射剂量计算 - 沙特阿拉伯王国

使用高纯度锗探测器 HPGe 系统，测量了沙特阿拉伯麦加地区不同地点地下水灌溉的农业土壤中的 30 个植物培养物样品中 NORM 的活性浓度。 Ra、Th 和 K 的活性浓度平均值在植物样品 10.41、1.92 和 4154.92 的 Bq 中找到。 kg，农业土壤样品分别为 18.11、16.12 和 1603.73 Bq。 kg 分别为 1.57、0.58 和 118.44 Bq。 l 分别。 Ra、剂量率、年有效剂量、危险指数H和H的平均值均为333.09 Bq。植物样品分别为 179.23 nGy h、1.09 mSv.y、0.89 和 0.92。伽马剂量高于世界极限值，并且 H 和 H 不太一致。植物样品中放射性核素摄入年有效剂量平均值为儿童2.12 mSv.y，成人1.86 mSv.y，这些结果高于世界值。结果表明，最高剂量是指农场 1 的样本位置，而最低值是农场 3 和农场 6，而其他农场相对高于推荐剂量值。因此，必须在农场 1 中研究土壤、水和植物样本，以获得儿童和成人植物样本中放射性核素摄入年有效剂量 mSv.y 的最高结果。