Department of Physics, North Eastern Hill University, Shillong 793200, India.
Nuclear Chemistry Division, Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Calcutta 700064, India.
Radiat Prot Dosimetry. 2023 May 3;199(7):623-630. doi: 10.1093/rpd/ncad052.
In this work, the variation of the radioactivity at different depth of the soil found at the Sung Valley in West Jaiñtia Hills District of Meghalaya in India is estimated by using the gamma-ray spectroscopy. The average activity concentration of 226Ra, 232Th and 40K for soil samples at different depths are measured to be 57, 156 and 352 Bq kg-1, respectively. The radiological hazard indices for the soil samples are calculated using standard models in order to determine the safe utility of these materials that are being used to manufacture domestic products by the locals. Values of all the radiological hazard indices are observed to be within the internationally recommended values as proposed by the European Commission and the United Nations Scientific Committee on the Effects of Atomic Radiation. The present study ensures that the soil analysed presents a negligible radiation hazard, and produced poetries and artefacts radiological incidence will stay within the allowed natural limit.
在这项工作中，通过伽马能谱法估计了在印度梅加拉亚邦西贾因蒂亚山地区的宋谷发现的土壤在不同深度处的放射性变化。对不同深度的土壤样本的 226Ra、232Th 和 40K 的平均活度浓度分别测量为 57、156 和 352 Bq kg-1。为了确定这些被当地人用来制造国内产品的材料的安全用途，使用标准模型计算了土壤样本的辐射危害指数。所有辐射危害指数的值都被观察到在国际建议值范围内，这些值是由欧洲委员会和联合国原子辐射效应科学委员会提出的。本研究确保了所分析的土壤不存在可忽略的辐射危害，并且制作的诗歌和手工艺品的放射性发生率将保持在允许的自然限度内。
