New Diversified Systems

Apart from the ones mentioned regarding fast reactors, it is therefore necessary to explain some technieal aspeets. 

The design and construetion and commissioning of PFR by the UKAEA on 14 December 1973 has in brief the following features  

Reactor contained within a concrete vault situated between ground level. Possibility of raising and lowering the leak jacket during various stages of reactor construction. 

An existence of support lower around top of the vault and a system for jacking the roof structure offers a correct positioning for welding the diagrid support structures and primary tank to the roof, filling the top strake in solutions and welding the leak jacket to the roof. The diagrid was proof loaded to simulate the core and neutron shield rods. 

The Enrico Fermi project on fast breeder reactor was formally committed on 8 August 1955. In its 17-year history, the Fermi project has made significant contributions to fast rector technology. The following reports summed up Fermi I project. 

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