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Deposition of RuO4 on various surfaces in a nuclear reactor containment

Joachim Holm (Institutionen för kemi- och bioteknik, Kärnkemi) ; H. Glanneskog ; Christian Ekberg (Institutionen för kemi- och bioteknik, Kärnkemi)
Journal of Nuclear Materials (0022-3115). Vol. 392 (2009), 1, p. 55-62.
[Artikel, refereegranskad vetenskaplig]

During a severe nuclear reactor accident with air ingress, ruthenium can be released from the nuclear fuel in the form of ruthenium tetroxide. Hence, it is important to investigate how the reactor containment is able to reduce the source term of ruthenium. The aim of this work was to investigate the deposition of gaseous ruthenium tetroxide on aluminium, copper and zinc, which all appear in relatively large amounts in reactor containment. The experiments show that ruthenium tetroxide is deposited on all the metal surfaces, especially on the copper and zinc surfaces. A large deposition of ruthenium tetroxide also appeared on the relatively inert glass surfaces in the experimental set-ups. The analyses of the different surfaces, with several analytical methods, showed that the form of deposited ruthenium was mainly ruthenium dioxide. (C) 2009 Elsevier B.V. All rights reserved.

Nyckelord: ruthenium oxides, xps investigations, tetroxide, behavior, films



Denna post skapades 2010-02-26. Senast ändrad 2015-11-05.
CPL Pubid: 115509

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Kärnkemi (2005-2014)

Ämnesområden

Kärnkemi

Chalmers infrastruktur