Distribution pattern of natural radionuclides in Lake Nasser bottom sediments

被引：24
|
作者：
Khater, AE [1 ]
Ebaid, YY [1 ]
Ei-Mongy, SA [1 ]
机构：
[1] Atom Energy Author, Natl Ctr Nucl Safety & Radiat Control, Cairo, Egypt
来源：
HIGH LEVELS OF NATURAL RADIATION AND RADON AREAS: RADIATION DOSE AND HEALTH EFFECTS | 2005年 / 1276卷
关键词：
natural radioactivity; Nasser Lake; sediment; uranium; laser flourimetry; polonium;
D O I：
10.1016/j.ics.2004.11.112
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
In Egypt, the Nile River water is the main source of water, providing nearly 95% of water requirements. The Nile water is impounded in Lake Nasser (LN) in the south of Egypt by the High Aswan Dam (HAD). In this study, we presented the radioactivity levels in LN sediments over the time period 1992-2000 and the distribution pattern of the measured radionuclides ((238)U series (232)Th series, (40)K and (137)Cs). In addition, the uranium concentration in water samples was measured. The distribution pattern of these radionuclides in sediments reflects the geochemical behavior and weathering processes of uranium series, thorium series and the heavy minerals in the Nile pathway and in Nasser Lake. 0 2004 Published by Elsevier B.V.
引用
收藏
页码：405 / 406
页数：2
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