Jones, You refer to something worth noting, but not the magnetic vector potential.
Ideally in a fusor, the particles converge to a point in the center of the fusor, but the magnetic field momentum at the center is quite small. Energy is borrowed from outer convergent spherical shells of electrons or ions, but that is a scalar coulomb effect - not magnetic vector potential. -- LP Jones Beene wrote: > BTW the Farnsworth Fusor benefits from "spherical convergence" of ion > vectors. > > The vectors are self-focused and not chaotic. > > Farnsworth/ Hirsch found the fusion threshold is lowered by a factor of 4 > due to spherical convergence, allowing substantial neutron production at > far > lower voltage potential than colliding beams. > > Polywell borrowed the idea > > http://www.askmar.com/Fusion_files/Polywell%20Ion%20Focus%20Concept.pdf > > > > > > > >
