Letter: Tom Whipple argues for fusion energy. However, the necessary use of tritium, which has to be “bred” in a reactor, is why a fusion reactor is unlikely to be built to serve our energy needs. Radiologically it is a nasty isotope, and not looked on with any favour by nuclear regulators. Moreover the breeding process, using lithium, looks easy on paper but will be very difficult in practice. A new tritium atom will have to be produced for every D-T reaction – a very tall order. There is no other practical source of tritium.
Times 12th July 2019 read more »