New paper from the Sydney group

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crowberry
Posts: 594
Joined: Sun Sep 08, 2013 6:34 am

New paper from the Sydney group

Post by crowberry »

There is a new paper from the Sydney group: Electric potential in a magnetically confined virtual cathode fusion device, by
Richard Bowden-Reid and Joe Khachan https://doi.org/10.1063/5.0040792
ABSTRACT
The magnetically confined virtual cathode (MCVC) is an approach to nuclear fusion in which multipole magnetic traps are used to confine a dense cloud of electrons and thereby establish a deep electrostatic potential well for the heating and trapping of ions. We describe preliminary studies conducted in MCVC-0, a two-coil, biconic cusp trap, in which high impedance, floating Langmuir probe measurements were used to characterize the electrostatic potential. Contrary to previous studies in six-coil “polywell” devices, no potential well formation was observed and this is attributed to the particular configuration of magnetic fields within the new device. A computational model was developed, based on the anisotropic electrical conductivity of discharge plasmas within magnetic fields, and shown to accurately describe the obtained experimental results. Electrostatic boundaries that were intersected by magnetic field lines were found to strongly dominate the form of the electric potential within the device, with strong implications for the design of future MCVC/polywell machines.

Giorgio
Posts: 2908
Joined: Wed Oct 07, 2009 6:15 pm
Location: China, Italy

Re: New paper from the Sydney group

Post by Giorgio »

It was discussed in January 2021:
https://talk-polywell.org/bb/viewtopic. ... 8&p=132857

I do not think those experimental results are pertinent at all for the Polywell as their experimental configuration is completely different, and there is no compatibility framework to allow those experimental results to be transposed to a Polywell type machine.

In the thread there is also a free link to the paper if you are interested to read it.
A society of dogmas is a dead society.

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