Search - Number 17 - 137Сs AND 90Sr AEROSOL-CARRIERS ORIGINATION WHEN WELDING RADIOACTIVELY CONTAMINATED METAL STRUCTURES

137Сs AND 90Sr AEROSOL-CARRIERS ORIGINATION WHEN WELDING RADIOACTIVELY CONTAMINATED METAL STRUCTURES
Cover not present 137Сs AND 90Sr AEROSOL-CARRIERS ORIGINATION WHEN WELDING RADIOACTIVELY CONTAMINATED METAL STRUCTURES
Category: Number 17
Publication: 17
Summary

The results of research of main parameters of welding process influence to 137Сs and 90Sr radionuclides transition regularity in a welding aerosol are demonstrated. The 137Сs specific activity in welding aerosol decreases according to power law with lessening of surface activity of plates being welded on, and depends on content of electrode cover and does not depend on welding heat input. Respirable fraction activity of welding aerosol exceeds at 20 - 30 % the welding aerosol activity as a whole.

Keywords: welding aerosols, respirable fraction, 137Сs and 90Sr radionuclide activity, "Ukryttya" object.

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