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DIFFERENCE IN LOW ENERGY PLASMA EXCITATION AND CHEMICAL REACTIVITY OF RARE GASES

机译:低能等离子体激发和稀有气体化学反应的差异

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摘要

The gas release behavior of heavy rare gases such as Xe and Kr formed as major fission products in fuel pellets plays an important role on the reliability of fuel claddings due to increase the internal pressure. To clarify the chemical characteristics of rare gases is useful to inhibit the gas release and to improve the radioactive waste management and to the industrial application. On this study, the chemical reactivity was examined using the low energy plasma excitation techniques and oxidation in oxygen atmosphere. Two types of RF sources of the induced couple and static capacity types were used as the low energy plasma source. The electron density in plasma of rare gases was dependent on the binding energy of each gas. The large difference in electron densities among rare gases was typically observed in the induced couple type plasma, because of the high production yield at wall surfaces covered with low energy electrons. It was suggested that the chemical compounds were formed in the condensed atmosphere as fuels tubes.
机译:由于内部压力增加,在燃料颗粒中形成的主要裂变产物Xe和Kr等重稀有气体的气体释放行为对燃料包壳的可靠性起着重要作用。阐明稀有气体的化学特性对于抑制气体释放,改善放射性废物管理和工业应用很有用。在这项研究中,使用低能等离子体激发技术和氧气气氛中的氧化来检查化学反应性。低能量等离子体源使用了感应耦合和静态电容类型的两种射频源。稀有气体等离子体中的电子密度取决于每种气体的结合能。由于在被低能电子覆盖的壁表面上的高产率,通常在感应耦合型等离子体中观察到稀有气体之间的电子密度差异很大。建议在冷凝的气氛中作为燃料管形成化合物。

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