| 三峡水电工程库区及其上游水环境中放射性核素浓度的频数分布和转移特点 |
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| 中文摘要 |
| 本文就三峡水电工程库区及其上游水环境中存在的天然放射性核素及长寿命的裂变核素137Cs进行了统计学处理。对于样品数目较多的河底泥和河水,主要放射性核素浓度的频数分布,用各种分布函数进行了拟合,获得频数分布的规律,并由这些频数分布函数求得各种核素的平均浓度。 |
| 英文摘要 |
| Using concentration data of radionuclides in samples from water environment of Sanxia water-power conservancy project project site and its upper readies, which were measured by means of the Anti-Compton Ge(Li) Gamma-Kay Spectrometer, we worked out statistics analysis to obtain the frequency distributions of concent rations of the main radionuclides in sediment and river water. Meanwhile, the enriched factors of radionuclides by aquatic ahimals and plants and the allocation coefficients of radionaclides lides in various mediums were discussed. The internal radiation doses caused by the radionuclides of the public in this area were evaluated and health evaluation was made. |
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