El-Bahi S M
Nuclear Physics Laboratory, Faculty of Girls, Ain Shams University, Heliopolis, Cairo, Egypt.
Appl Radiat Isot. 2003 Jan;58(1):143-8. doi: 10.1016/s0969-8043(02)00270-1.
Thirteen samples of salt collected from different locations of old sediments in the western desert at El-Harra and Ain Giffara, Sitra lake and local markets in Egypt have been investigated. Natural radionuclide contents have been measured by gamma-ray spectrometry employing a shielded HPGe detector. The activities of 238U, 232Th and 40K have been determined in Bq/kg dry weight. The absorbed dose rate of gamma radiation was estimated to be 1.46-16.13 nGy/h. The thorium-to-uranium concentration ratios were also estimated for the samples.
对从埃及西部沙漠哈勒拉、艾因吉法拉的古老沉积物不同地点、西特拉湖以及当地市场采集的13个盐样本进行了调查。使用屏蔽型高纯锗探测器通过伽马射线能谱法测量了天然放射性核素含量。已测定238U、232Th和40K的活度，单位为Bq/kg干重。估计伽马辐射的吸收剂量率为1.46 - 16.13 nGy/h。还对样本的钍铀浓度比进行了估计。
