塞尔维亚尼什镇地区土壤的放射性
RADIOACTIVITY OF SOIL IN THE REGION OF THE TOWN OF NIŠ, SERBIA.
作者信息
Manić Vesna, Manić Goran, Radojković Branko, Vučić Dušica, Nikezić Dragoslav, Krstić Dragana
机构信息
Department of Physics, University of Niš, PO Box 224, 18000 Niš, Serbia.
Institute of Occupational Health, Department for radiological protection, Vojislava Ilića bb, 18000 Niš, Serbia.
出版信息
Radiat Prot Dosimetry. 2019 Dec 31;185(4):456-463. doi: 10.1093/rpd/ncz034.
The concentration of radionuclides in samples of soil collected in the region of the town of Niš, was measured and presented in this paper. The naturally occurring radionuclides, 226Ra, 232Th and 40K, were found in all samples. In many of them, 137Cs was also measured, while the other artificial radionuclides were not detected. The measurements were carried out using the standard gamma spectroscopy system with high purity germanium (HPGe) detector. The results show that the average activity concentrations of 226Ra, 232Th, 40K and 137Cs are: 21, 26, 414 and 4.7, in Bq/kg, respectively. The sediment in the municipality spa Niška Banja exhibits a high content of 226Ra, 573 Bq/kg. The outdoor dose rates, due to the gamma radiation of the ground, were also determined for all soils. The average absorbed dose rate in air was estimated to be 39 nGy/h, while the corresponding annual effective dose is 0.048 mSv.
本文测量并展示了在尼什镇地区采集的土壤样本中放射性核素的浓度。在所有样本中均发现了天然存在的放射性核素226Ra、232Th和40K。在许多样本中还测量到了137Cs，而未检测到其他人工放射性核素。测量是使用配备高纯锗（HPGe）探测器的标准伽马能谱系统进行的。结果表明，226Ra、232Th、40K和137Cs的平均活度浓度分别为：21、26、414和4.7，单位为Bq/kg。尼什卡巴尼亚市温泉的沉积物中226Ra含量很高，为573 Bq/kg。还测定了所有土壤因地面伽马辐射产生的室外剂量率。空气中的平均吸收剂量率估计为39 nGy/h，而相应的年有效剂量为0.048 mSv。
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