Opportunities and Challenges for Compact Fusion Energy

The realization of power from Magnetic Confinement Fusion is presently following a plan that will span several decades. The mainstream route is via ITER, combined with, or followed by, materials development on a Fusion Neutron Science Facility, then a DEMO reactor, which, as presently visualised, is considerably larger than ITER. We consider smaller-scale alternatives and developments which may make more rapid progress towards the much needed goal of economic, safe, clean fusion power, but still based on the tokamak.