Decommissioning of the pool reactor Thetis in Ghent, Belgium

Abstract The Thetis research pool reactor (with a nominal power of 150 kW) of the Ghent University was operational from 1967 till December 2003. The first phase of the decommissioning of the reactor, the removal of the spent fuel from the site, took place in 2010. The cumulative dose received was only 404 man · μSv. During the second phase, the transition period between the removal of the spent fuel in 2010 and the start of the decommissioning phase in March 2013, 3-monthly internal inspections and inspections by Bel V, were performed. The third and final decommissioning phase started on March... Mehr ...

Verfasser: Cortenbosch, G.
Mommaert, C.
Thierens, H.
Monsieurs, M.
Meirlaen, I.
Strijckmans, K.
Dokumenttyp: Artikel
Erscheinungsdatum: 2016
Reihe/Periodikum: Kerntechnik ; volume 81, issue 5, page 586-587 ; ISSN 2195-8580 0932-3902
Verlag/Hrsg.: Walter de Gruyter GmbH
Sprache: Englisch
Permalink: https://search.fid-benelux.de/Record/base-28966107
Datenquelle: BASE; Originalkatalog
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Link(s) : http://dx.doi.org/10.3139/124.110731

Abstract The Thetis research pool reactor (with a nominal power of 150 kW) of the Ghent University was operational from 1967 till December 2003. The first phase of the decommissioning of the reactor, the removal of the spent fuel from the site, took place in 2010. The cumulative dose received was only 404 man · μSv. During the second phase, the transition period between the removal of the spent fuel in 2010 and the start of the decommissioning phase in March 2013, 3-monthly internal inspections and inspections by Bel V, were performed. The third and final decommissioning phase started on March 18, 2013. The total dose received between March 2013 and August 2013 was 1561 man · μSv. The declassification from a Class I installation to a Class II installation was possible by the end of 2015. The activated concrete in the reactor pool will remain under regulatory control until the activation levels are lower than the limits for free release.