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Chemical Decontamination Using IF7 Gas

[+] Author Affiliations
Haruhi Hata, Kaoru Yokoyama, Noritake Sugitsue

Japan Atomic Energy Agency, Okayama, Japan

Paper No. ICONE20-POWER2012-54747, pp. 327-333; 7 pages
  • 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference
  • Volume 4: Codes, Standards, Licensing, and Regulatory Issues; Fuel Cycle, Radioactive Waste Management and Decommissioning; Computational Fluid Dynamics (CFD) and Coupled Codes; Instrumentation and Controls; Fuels and Combustion, Materials Handling, Emissions; Advanced Energy Systems and Renewables (Wind, Solar, Geothermal); Performance Testing and Performance Test Codes
  • Anaheim, California, USA, July 30–August 3, 2012
  • Conference Sponsors: Nuclear Engineering Division, Power Division
  • ISBN: 978-0-7918-4498-4
  • Copyright © 2012 by ASME


The uranium enrichment facilities, located at Ningyotoge in Japan, are contaminated by uranium fluorides. There is the risk of exposing the HF gas when the equipments will be dismantled. Therefore, we performed the systematic chemical decontamination by using IF7 gas.

This paper reports the actual results of the decontamination by using IF7 gas. The result shows that the decontamination factor is approximately 100. In addition, we performed the simulation of the reactions with IF7 gas and uranium fluorides.

Copyright © 2012 by ASME
Topics: Decontamination



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