Radiat Prot Dosimetry. 2021 Dec 30;197(3-4):195-201. doi: 10.1093/rpd/ncab170.
A HpGe detector was used to measure radioactivity concentrations of 40K, 228Ra and 226Ra in spring water from villages in Petra district in southern Jordan. The concentrations of 40K, 228Ra, 226Ra were 0.64-2.72 Bq/l, 0.05-0.08 Bq/l and 0.15-0.22 Bq/l, respectively. These values were compared to the concentrations of the corresponding radionuclides in studies from Jordan and near countries. The annual effective doses (${D}{\mathrm{eff}}$) due to the intake of 40K, 228Ra and 226Ra, for the different age groups were calculated. The highest ${D}{\mathrm{eff}}$ values due to the intake of 226Ra and 228Ra were found in the infants age group, whereas the lowest were found in the adults age group in every site. The annual effective doses in this study were compared to the committed annual effective doses from ingestion in UNSCEAR. The annual effective doses in this study were much higher than the committed values in UNSCEAR. The life time risk for radiation-induced cancer for the whole population was calculated for every sample and it revealed no extra risk over the one recommended by WHO.
使用高纯锗探测器（HpGe detector）测量了来自约旦南部佩特拉地区村庄泉水的 40K、228Ra 和 226Ra 的放射性浓度。泉水 40K、228Ra 和 226Ra 的浓度分别为 0.64-2.72 Bq/l、0.05-0.08 Bq/l 和 0.15-0.22 Bq/l。这些值与来自约旦和邻国的研究中相应放射性核素的浓度进行了比较。计算了不同年龄组因摄入 40K、228Ra 和 226Ra 而导致的年有效剂量（${D}{\mathrm{eff}}$）。因摄入 226Ra 和 228Ra 而导致的最高 ${D}{\mathrm{eff}}$ 值出现在婴儿年龄组，而在每个地点，最低值出现在成人年龄组。将本研究中的年有效剂量与 UNSCEAR 中因摄入而导致的承诺年有效剂量进行了比较。本研究中的年有效剂量远高于 UNSCEAR 中的承诺值。计算了每个样本的全体人口因辐射诱发癌症的终生风险，结果显示，其风险没有超过世界卫生组织（WHO）推荐的风险。
