Halden Reactor

[3] In June 2018, the board of directors of Norway's Institute for Energy Technology (IFE) has decided to close the Halden Reactor permanently and to start its decommissioning.

The board did not apply to extend its operating licence, which expired in 2020, and the reactor, which was at the time shut down due to a safety valve failure, was not restarted again.

The heat was transferred to a closed light water secondary circuit, then to a tertiary system which delivered steam to a neighbouring paper factory[5][6] The reactor was used for safety-focused research into materials, fuel burnup, and fuel behaviour in prolonged operating conditions in co-operation with organizations from 19 countries.

[8] In August 2019 IFE started an investigation into alleged scientific misconduct in historic Halden Reactor projects involving the possible alterations of research results.

[11] The research reactor suffered on 24 October 2016 1:45 pm a small leakage of radioactive iodine.