After all, a large fast reactor could cost not much less than £2000 million to build.

In a fast reactor, less of the Xe-135 may be destroyed.

The golf ball shape was a fast reactor, built in 1959.

It has a small fast breeder reactor and is planning a much larger one.

However, the same negative temperature coefficient comes into play with fast nuclear reactors.

Therefore it is impossible to build a fast reactor using only natural uranium fuel.

Integral fast reactors can use almost all the rest.

Other countries have also designed and operated fast reactors.

So one of you has built a fast breeder reactor, tested it and come up with these conclusions?

Since water is a moderator, it cannot be used as a coolant in a fast reactor.