FiR1 TRIGA research reactor decommissioning project

    Research output: Contribution to conferenceConference AbstractScientificpeer-review

    Abstract

    FiR1 is a 250 kW TRIGA Mark II type open pool reactor from General Atomics. It has been in operation for education, research, BNCT treatments and isotope production in Finland for years 1962-2015 and is planned to be decommissioned in following few years. Overall the reactor has been in use for around 11500 MWh. Radioactive waste will consist mainly of concrete, steel, aluminium, graphite and BNC Fluental neutron moderator materials. At first, the presentation introduces FiR1 reactor history and scientific use of it. This is followed by an indicative schedule of the VTT decommissioning project and on-going work. This includes licensing, agreements and procurement processes on dismantling planning, dismantling waste management and return of SNF. We present the calculation system for the activity inventories in the reactor structures and preliminary activity measurements in different materials. Some planned dismantling methods are illustrated and an outlook to future steps is presented.
    Original languageEnglish
    Number of pages1
    Publication statusPublished - 2017
    MoE publication typeNot Eligible
    EventWorkshop on Current and Emerging methods for Optimising Safety and Efficiency in Nuclear Decommissioning - Sarpborg, Norway
    Duration: 7 Feb 20179 Feb 2017

    Workshop

    WorkshopWorkshop on Current and Emerging methods for Optimising Safety and Efficiency in Nuclear Decommissioning
    Country/TerritoryNorway
    CitySarpborg
    Period7/02/179/02/17

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