核电站碘空气过滤器中小分散煤尘沉淀物和吸附放射性化学元素积累分布过程的物理特征
Physical features of accumulation and distribution processes of small disperse coal dust precipitations and absorbed radioactive chemical elements in iodine air filter at nuclear power plant
摘要：
研究了放射性化学元素及其同位素在核电站AU-1500型碘空气过滤器中吸收过程的物理特征。结果表明，用γ-活化分析方法探测的碘空气过滤器中被吸收的放射性化学元素及其同位素的非均匀空间分布与碘空气过滤器中小分散煤尘沉降的空间分布有很好的相关性。这一情况表明，碘空气过滤器中的小分散煤粉组分在放射性化学元素及其同位素的吸收过程中起着重要的作用。本文讨论了碘空气过滤器中放射性化学元素与积聚的小分散煤尘沉淀物之间特征相互作用的物理根源。分析了所研究的物理过程对核电站碘空气过滤器的技术特性和功能的影响。
英文摘要：
The physical features of absorption process of radioactive chemical elements and their isotopes in the iodine air filters of the type of AU-1500 at the nuclear power plants are researched. It is shown that the non-homogenous spatial distribution of absorbed radioactive chemical elements and their isotopes in the iodine air filter, probed by the gamma-activation analysis method, is well correlated with the spatial distribution of small disperse coal dust precipitations in the iodine air filter. This circumstance points out to an important role by the small disperse coal dust fractions of absorber in the absorption process of radioactive chemical elements and their isotopes in the iodine air filter. The physical origins of characteristic interaction between the radioactive chemical elements and the accumulated small disperse coal dust precipitations in an iodine air filter are considered. The analysis of influence by the researched physical processes on the technical characteristics and functionality of iodine air filters at nuclear power plants is completed.
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