Rapsodie was an experimental nuclear reactor built in Cadarache in France. It was France's first fast reactor, and first achieved criticality in 1967. Rapsodie was a sodium-cooled fast neutron loop-type reactor with a thermal output of 40MW and no electrical generation facilities, and closed in 1983. Rapsodie was operated in conditions considered representative of a commercial plant in terms of temperatures (inlet , outlet ) and neutron flux (3.2e15n/cm/s), and served to prove many elements used in later, larger, breeder reactors. Rapsodie operated for 15 years, and suffered two leaks, a sodium micro leak in 1978 that was so small it was never found, and a nitrogen gas leak in 1982.http://www.tesionline.com/__PDF/23539/23539p.pdf Rapsodie is currently in Stage 2 decommissioning.

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Nuclear research reactors {{France-struct-stub

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