Atmospheric-Pressure Plasma Cleaning of Contaminated Surfaces

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Description

Project was to develop a low-cost, environmentally benign technology for the decontamination and decommissioning of transuranic waste. With the invention of the atmospheric-pressure plasma jet the goal was achieved. This device selectively etches heavy metals from surfaces, rendering objects radiation free and suitable for decommissioning. The volatile reaction products are captured on filters, which yields a tremendous reduction in the volume of the waste. Studies on tantalum, a surrogate material for plutonium, have shown that etch rate of 6.0 microns per minute can be achieved under mild conditions. Over the past three years, we have made numerous improvements in the ... continued below

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Hicks, Robert F. & Selwyn, Gary S. January 9, 2001.

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Description

Project was to develop a low-cost, environmentally benign technology for the decontamination and decommissioning of transuranic waste. With the invention of the atmospheric-pressure plasma jet the goal was achieved. This device selectively etches heavy metals from surfaces, rendering objects radiation free and suitable for decommissioning. The volatile reaction products are captured on filters, which yields a tremendous reduction in the volume of the waste. Studies on tantalum, a surrogate material for plutonium, have shown that etch rate of 6.0 microns per minute can be achieved under mild conditions. Over the past three years, we have made numerous improvements in the design of the plasma jet. It may now be operated for hundreds of hours and not undergo any degradation in performance. Furthermore, small compact units have been developed, which are easily deployed in the field.

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Notes

INIS; OSTI as DE00791717

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  • Other Information: PBD: 9 Jan 2001

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  • Report No.: DOE/ER/45621
  • Grant Number: FG07-96ER45621
  • DOI: 10.2172/791717 | External Link
  • Office of Scientific & Technical Information Report Number: 791717
  • Archival Resource Key: ark:/67531/metadc734232

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  • January 9, 2001

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • Jan. 3, 2017, 1:47 p.m.

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Hicks, Robert F. & Selwyn, Gary S. Atmospheric-Pressure Plasma Cleaning of Contaminated Surfaces, report, January 9, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc734232/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.