Yes, that was my take on the paper.

https://arxiv.org/abs/1808.00622 [2019]

" Equations describing plasma equilibria are derived from the total energy of the system. The MHD equilibrium is shown to hold even for systems where the magnetic field may locally vanish. Through conservation of helicity, confinement is shown to be intimately related to electromagnetic tension. For an axisymmetric device, the presence of a magnetic field or current circling the axis is shown to be destabilising. This provides a simple explanation for the poor performance of some devices for which MHD predicts stability"

there is a cadence between electric charge motion and magnetic flux, and a dynamic balance has to be manufactured.

the addendum describes the magnetic confinement of electrodes to be a source of instability in the reaction. as well as providing a corrective factor for the mathematics, describing the theory.

Thats the thing, even if you get the technique down right, then the system has to be engineered to transduce that energy and other product into something we can use. such as mechanical motion or electromagnetic generation/propulsion, or harvesting products such as isotopic helium.

Starting with HH vs DD fusion gives you validation with orders of magnitude less radiation, lower pressures would be similarly useful. But, IMO partnering with someone in the nuclear industry is probably the best bet.

Really, if your not asking for money just a location that's a fairly easy sell. If it doesn't work at all that's no real cost to them. If it almost works that's a cheap neutron source that's easy to turn on and off which is valuable. And if it actually works that's one of those world changing things people are willing to support.

They're making the assumption that the ions and electrons can be held outside of thermal equilibirium (and provide no evidence for this). In reality thermalisation is likely to occur rapidly due to frequent collisions, once thermalised a normal Maxwell distribution will apply and Bremsstrahlung losses will return with a vengeance.

they are using electric charge to move plasma particles around, and a magnetic field to enclose the charged electrodes and protect them from the plasma.

the electrode setup was a concentric ring setup so it was simpler than a spherical setup like a fusor kind of device

https://en.wikipedia.org/wiki/Fusor

https://en.wikipedia.org/wiki/Polywell

the most common fusion concepts nowadays involve magnetic enclosure and or compression, of plasma, and electric charge based acceleration of the plasma.

At first glance, no.

Thanks :)

Try dropping a neodymium magnet down a length of copper pipe sometime. I would think that sensation would be quite disturbing from something hugging a tooth.

And the dental posts that hold crowns? Or the metal pins that screw implants into jaws?

> Projectile Accidents: This is the scariest type of interaction, in which the MRI’s magnetic field literally pulls a restoration out of the mouth. The projectile restoration can injure the person with the restoration or, possibly, others nearby.

> Damaged or Dislodged Restorations: Magnetic fields may not interact strongly enough to actually remove a restoration. But they may still be strong enough to move, break, or deform restorations.

https://www.topdowndental.com/blog/mri-safety-with-dental-cr...

"... in a mysterious and highly fluid vacuum, the force is not very small; it only moves at the speed and frequency of the plasma from two to three orders of magnitude faster than the plasma of other electrons to three orders of magnitudes..."

This makes me wonder what would happen to this device? Is it a device like the SG?

Above the illustration in the text, the paper references work from 2001-2006 for motivating that geometry:

    [19]  J. Khachan and S. Collis, Phys. Plasmas8, 1299 (2001).
    [20]  J. Khachan, D. Moore, and S. Bosi, Phys. Plasmas10, 596 (2003).
    [21]  O.  Shrier,  J.  Khachan,  S.  Bosi,  M.  Fitzgerald,  and  N.Evans, Phys. Plasmas13, 012703 (2006)

In particular all three citations refer to Joseph Khachan's work:

https://sydney.edu.au/science/about/our-people/academic-staf...

And Bosi seems to have been at Sydney at the time as well:

https://www.une.edu.au/staff-profiles/science-and-technology...