To reuse equipment and structure materials of decommissioned nuclear plants, the proper decontamination process is needed to remove radionuclides from the oxide surfaces. The decontamination process by using CF4/O2 plasma at atmospheric pressure was proposed. In the present work we report some results obtained when our technique is applied to cold sample of actual AISI 304 and carbon steel prepared under the BWR condition at temperature of 280oC and pressure of 70 atm for 1000 hours. Oxide film was formed on surface. The oxide film formed on AISI 304 surface was fluorinated easier than the oxide film formed on carbon steel surface. The fluorination on carbon steel oxide surfaces could be enhanced by controlling plasma gas composition.
Keywords: decontamination, fluorination, microwave discharge plasma, atmospheric plasma, plasma process
Hendri Firman W
Keywords: decontamination, fluorination, microwave discharge plasma, atmospheric plasma, plasma process
Hendri Firman W
