Post-annealing ex-vessel dosimetry at Loviisa 1: an international exercise

Tom Serén, Josef Hógel, Willem, P. Voorbraak

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


In order to improve the assessment of the post-annealing neutron exposure an ex-vessel (cavity) irradiation was carried out during cycle 22 (1998-99) at unit 1 of the Loviisa NPP (type VVER 440) in Finland. A dosimeter holder rack was designed and built by Škoda JS a.s., Czech Republic. Dosimeter sets were provided by VTT, Škoda and JRC/NRG Petten, the Netherlands. Some of the dosimeters were counted at Škoda and NRG Petten in addition to VTT. The large number of reactions used provided a good basis for spectrum adjustment. The results of the intercomparison are presented as well as a critical assessment of the materials and methods used. A similar irradiation is planned for Loviisa unit 2 during 2002-03.
Original languageEnglish
Title of host publicationReactor Dosimetry in the 21st Century
Subtitle of host publicationProceedings of the 11th International Symposium on Reactor Dosimetry
EditorsJan Wagemans, Hamid Aït Abderrahim, Pierre d'Hondt, Charles de Raedt
Place of PublicationBrussels
PublisherWorld Scientific Publishing
ISBN (Electronic)978-981-4485-48-7
ISBN (Print)978-981-238-448-5
Publication statusPublished - 2003
MoE publication typeA4 Article in a conference publication
Event11th International Symposium on Reactor Dosimetry - Brussels, Belgium
Duration: 18 Aug 200223 Aug 2002


Conference11th International Symposium on Reactor Dosimetry


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