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首页> 外文会议>1998 Joint Conference on the Environment, 1998, Mar 31-Apr 1, 1998, Albuquerque, NM >Plasma Decontamination of Uranium Oxide From Stainless Steel Surfaces
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Plasma Decontamination of Uranium Oxide From Stainless Steel Surfaces

机译：从不锈钢表面对铀进行等离子体去污

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The Department of Energy (DOE) is expected to have 845,000 m~3 of transuranic (TRU) waste by 2000 that have accumulated during the development and assembly of the nation's nuclear stockpile. TRU disposal costs alone range up to dollar28,000/m~3 which could be reduced to dollarl,800/m~3 or less by treating and converting the material to low level waste (LLW). Plasma based processes have been shown to remove plutonium and uranium surface contaminants from metallic components and could be used to treat TRU with significant cost avoidance, estimated at over dollar 1.0B. Martz conducted the initial work of plutonium etching in low power RF plasma with etch rates ranging from 0.007 to 0.025 kg m~(-2) hr~(-1). Veilleux~2 reported that plasma decontamination of uranium from the interior of aluminum objects results in etch rates an order of magnitude greater. The current work reports on removal rates of uranium from stainless steel surfaces, to include estimates of the etch rates and characteristic times for removal.
机译：到2000年，美国能源部（DOE）预计将有845,000 m〜3的超铀（TRU）废物在该国的核储存发展和组装过程中积累。仅TRU处置成本就高达28,000美元/ m〜3，通过将材料处理并将其转化为低放废物（LLW）可以降低至1,800美元/ m〜3或更低。已经证明，基于等离子体的工艺可从金属部件中去除p和铀表面污染物，可用于避免显着成本的TRU处理，估计费用超过1.0B美元。 Martz在低功率RF等离子体中进行of蚀刻的初步工作，蚀刻速率范围为0.007至0.025 kg m〜（-2）hr〜（-1）。 Veilleux〜2报道说，从铝制物体内部进行铀的等离子体去污会导致蚀刻速率提高一个数量级。当前的工作报告了从不锈钢表面去除铀的速率，包括对蚀刻速率和去除特征时间的估计。

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