Exploring the Possibility of a Hollow Current Sheet in a Gas Chamber

[artis]

There is a type of fusion pinch concept where instead of imploding a metallic liner filled with gas fuel mixture they have a chamber with a central electrode and outer electrode , filling the chamber with gas and then a arc discharge is initiated and this discharge drives the gas like a piston.
Please see the schematic here
https://lynceans.org/wp-content/uploads/2021/02/Zap-Energy_US-converted.pdf
additional drawing here
https://www.researchgate.net/figure/A-simplified-schematic-of-an-SFS-Z-pinch-plasma-formation-showing-an-overlay-of-five_fig1_332215316

What makes me wonder is this, the chamber is a cylinder by geometry such is also the central electrode. In theory for this to work the discharge current and resulting plasma needs to be a evenly spaced sheet that fills the whole area of the annulus between the central cylindrical electrode and the outer cylinder wall.
But knowing how gas discharges work and their unpredictable nature , can such a even current/plasma sheet form? I would think the current would be uneven and create "rods" of high discharge areas while leaving some other area void of any discharge.

In general is it possible to create a hollow current sheet in a gas chamber that would then turn into a hollow plasma sheet imploding itself much like the analog metallic liner?

 

[Aaron Barnard]

In principle, yes, it is possible to create a hollow current sheet in a gas chamber that will then turn into a hollow plasma sheet imploding itself. However, there are several challenges associated with this process. First, the discharge must be initiated in a way that ensures a uniform current density throughout the chamber. This is difficult to do, as the shape and size of the electrodes, the current density, and the applied voltage will all affect the formation of the current sheet. Additionally, the gas used must have the correct properties to allow for the formation of a uniform sheet and should be tested before use. Finally, it is important to ensure that the gas does not become ionized too quickly, as this could lead to an uneven implosion. While it is possible to create a hollow current sheet, there are many challenges associated with ensuring uniformity and achieving the desired results.