Investigation on ruthenium transport in highly oxidising conditions

Ari Auvinen, Ulrika Backman, Jorma Jokiniemi, Maija Lipponen, Riitta Zilliacus, Martin Kissane, Imre Nagy, Mihály Kunstár, Nóra Vér

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


This paper presents results from ruthenium release, transport and speciation experiments obtained in recent European studies. Experiments have shown that ruthenium may be released from the fuel already at a relatively moderate temperature, if the cladding is breached and if the flow contains oxygen. Furthermore, a significant fraction of released ruthenium is expected to be transported in the primary circuit in gaseous form. This work helps to resolve a severe accident safety issue related to fission product release in highly oxidising environment, which was indicated in the EURSAFE phenomena identification and ranking table (PIRT) [1]. Ultimately the goal of the ongoing projects is to improve modelling of ruthenium transport phenomena in severe accident codes such as ASTEC/Sophaeros
Original languageEnglish
Title of host publicationConference Proceedings
Subtitle of host publicationInternational Conference Nuclear Energy for New Europe 2005
Publication statusPublished - 2005
MoE publication typeA4 Article in a conference publication
EventInternational Conference Nuclear Energy for New Europe, NENE 2005 - Bled, Slovenia
Duration: 5 Sep 20058 Sep 2005


ConferenceInternational Conference Nuclear Energy for New Europe, NENE 2005

Fingerprint Dive into the research topics of 'Investigation on ruthenium transport in highly oxidising conditions'. Together they form a unique fingerprint.

Cite this