Thorium fuelled reactors - do they need an accelerator?
2017 March 17
2017 April 14
We present and evaluate the arguments put forward for Accelerator Driven Subcritical Reactor systems, especially in the context of thorium fuel. Some advocates of thorium fuel argue that an accelerator is not necessary, others that it is. We consider the arguments and find that although several of the reasons commonly put forward do not stand up to robust scrutiny, an accelerator is necessary to achieve stable operation of a thorium breeder reactor, avoiding cyclic behaviour in the reactivity which would make operation of an accelerator-free design unstable.