JEEP II was a research reactor in
Kjeller
Kjeller is a village located near Lillestrøm in the municipality of Lillestrøm, Norway. It is located 25 kilometers north-east of Oslo.
Name
The Norse form of the name was probably ''Tjaldir''. This is then the plural of ''tjald'' n ' tent' ...
,
Norway
Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
that was in operation between 1966 and 2018. The reactor was operated by the
Institute for Energy Technology
Institute for Energy Technology (IFE) was established in 1948 as the Institute for Nuclear Energy (IFA). The name was changed in 1980. Its main office is at Kjeller, Norway, and slightly under half of the institute’s activities are based in Ha ...
(IFE). Construction of JEEP II began in 1965, and the reactor went critical for the first time in December 1966.
The reactor had a thermal power of 2 MW. It used
heavy water as a moderator and coolant, and used
low-enriched uranium
Enriched uranium is a type of uranium in which the percent composition of uranium-235 (written 235U) has been increased through the process of isotope separation. Naturally occurring uranium is composed of three major isotopes: uranium-238 (23 ...
as fuel. JEEP II was used for basic research in solid state physics, neutron irradiation of materials and production of radioactive isotopes.
The reactor was stopped on December 15, 2018 for scheduled maintenance, whereby major damage was discovered. This meant that IFE's board decided on 25 April 2019 not to restart the reactor but instead to start decommissioning.
References
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Nuclear research reactors