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Deuterium Retention in Graphite and its Removal by Inert Gas Glow Discharge

机译：氘在石墨中的保留及其惰性气体辉光放电的去除

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摘要

The hydrogen isotope retention and its removal by inert gas glow discharge for graphite was investigated by residual gas analysis. The amount of retained hydrogen isotope in graphite during the deuterium glow discharge was about 1.0×1017 cm2, which was one order of magnitude larger than that in 316L stainless steel or tungsten. The removal ratio of hydrogen isotope by helium, neon and argon glow discharge cleaning were 49%, 22% and 6% respectively. These removal ratios were similar to those for the stainless steel, but larger than the tungsten. The removalratio in graphitecan be explainedby both the depth distribution of incident deuterium in the materials and the etching depth.
机译：通过残留气体分析研究了氢同位素的保留及其通过惰性气体辉光放电除去石墨的方法。氘辉光放电期间石墨中的残留氢同位素量约为1.0×10 17 cm 2 ，比316L不锈钢或316L不锈钢大一个数量级。钨。氦气，氖气和氩气辉光放电净化对氢同位素的去除率分别为49％，22％和6％。这些去除率与不锈钢相似，但大于钨。石墨中的去除率可以通过入射氘在材料中的深度分布和蚀刻深度来解释。

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