Reply To: Fusion Oil

[Brian H]

Aeronaut wrote: …

I can see the drift tube and coil set(s) as an integral part of the vacuum housing, where the drift tube is open to the fill gas. But the plasma begins with the spark from the cathodes’ bases to the anode, and is confined to the current sheath +/- a little, if I understand it correctly. If this is true, then we’re developing positive charge in the coil(s) every pulse, and that converter has to be insulated from the grounded drift tube.

So I’m hoping that we don’t need to add any moving or magnetic parts, dragging down an elegant device.

No, I don’t think that’s true. The “fill gas” is a hot plasma to begin with; it’s electrically charged, or the torus would never form. It is almost certainly a positive charge (electrons stripped off decaborane molecules).

The charge matters less than the conductivity, I think. If the coil is shorting to the gas it will be inefficient.