While fast reactors are up to 200x more resource efficient, they require 3x or
more fissile atoms to start up initially.
Fast reactors with an elegant ability to «breed»
more fissile materials than they consumed in fuel, seemed destined to play a major part in helping the world to solve its energy needs.
Not exact matches
«The highly unpredictable and aggressive regime in North Korea recently conducted its third nuclear test and could already have enough
fissile material to produce
more than a dozen nuclear weapons,» he wrote in the Telegraph.
In nature, uranium occurs as a mixture of two isotopes, the easily fissionable uranium 235 (which is said to be «
fissile») and the much
more stable uranium 238.
In addition, nuclear engineers have uncovered ways to coax
more heat out of
fissile uranium fuel before it inevitably fizzles out.
Some scientists have argued that thorium, a
more abundant element that can be bombarded with neutrons to produce the
fissile fuel isotope uranium233, could become the nuclear fuel of the future.
Nuclear has in fact started in the USA, although the raison d'etre was
more connected to collecting enough
fissile material for their military requirements rather than civil power generation.