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Analysis of Accumulation Factor of Cesium 137 in Bottom Sediments of Surface Water Bodies

机译：地表水体底部沉积物中铯137的积累因子分析

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摘要

The accumulation factor of radionuclides in river and water body bottom sediments K is an integral magnitude and depends on many parameters. With a two-compartment migration model (water-bottom sediments) an analytical relation is established for the conditions of a steady-state process of radioactive transfer for calculating K depending on the known parameters of radionuclide migration in the aquatic environment. With a reference to cesium 137 the calculated factor value is found for silty sediments in rivers and water bodies under characteristic summertime parameters of migration. The numerical analysis showed that the coefficient of radionuclide distribution in the water-suspension system and turbidity influence mostly the K value for cesium 137. For the practical use of this coefficient, a scheme of its correction is suggested depending on turbidity. An example of its practical use for calculating cesium 137 in water is considered. The calculated and measured volumetric activity values are intercompared.
机译：河流和水体底部沉积物K中放射性核素的积累因子是一个整数，取决于许多参数。利用两室迁移模型（水底沉积物），建立了放射性转移稳态过程条件的解析关系，以便根据水环境中放射性核素迁移的已知参数来计算K。参考铯137，可以找到夏季迁移特征参数下河流和水体中粉质沉积物的计算因子值。数值分析表明，水悬浮体系中放射性核素的分布系数和浊度主要影响铯137的K值。为实际使用该系数，提出了一种根据浊度进行校正的方案。考虑了其在水中计算铯137的实际应用示例。将计算出的和测量出的体积活度值进行比较。

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  • 来源
    《Russian meteorology and hydrology》 |2011年第1期|p.33-39|共7页
  • 作者

    A. L. Krylov; A. V. Nosov; V. P. Kiselev;

  • 作者单位

    Institute of Problems of Safety Development of Atomic Energetics, Russian Academy of Sciences,ul. B. Tul'skaya 52, Moscow, 115191 Russia;

    Joint-Stock Company "Atomenergoproject" Rosatom,ul. Bakuninskaya 7, str. 1, Moscow, 105005 Russia;

    Institute of Problems of Safety Development of Atomic Energetics, Russian Academy of Sciences,ul. B. Tul'skaya 52, Moscow, 115191 Russia;

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