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search  A Riggatron is a magnetic confinement fusion reactor
design created by Robert W. Bussard in the late 1970s. It is
tokamak on the basis of its magnetic geometry, but some
unconventional engineering choices were made, in particular the
use of copper magnets positioned inside the blanket, which was
hoped to lead to much lower construction costs. Originally
referred to as the Demountable Tokamak Fusion Core (DTFC), the
name was later changed to refer to the Riggs Bank, which funded
development along with Bob Guccione, publisher of the adult
magazine Penthouse.  Conventional tokamak design[edit]  In a
conventional tokamak design the confinement magnets are arranged
outside a "blanket" of liquid lithium. The lithium serves two
purposes, one is to absorb the neutrons from the fusion
reactions and produce tritium which is then used to fuel the
reactor, and as a secondary role, as shielding to prevent those
neutrons from reaching the magnets. Without t