Talk-Polywell.org

MS: "If most of the particles are monoenergetic" I'm more sympathetic with AC's view that it will all thermalise. This seems a much more realistic treatment, but poses what appears at first sight some unsurmountable issues down the road at higher temps. I see no reason at all now that the energy wou...

chris, If you study fusor design the shape and openings of the grid don't seem to have much effect on star formation. Not sure I understand you. The star mode beams pass through the openings. I've never seen a star mode pass through anything but a grid opening. They don't pass through the grid itse...

Can we try to be civil, please? Sorry, I think you may have taken the inverse of what I said! I was trying to say that proponents of fusion power fusors do not have a rational argument, whereas Polywell proponents do; this being the difference I comment on. The debates over whether the 'standard' l...

(b) I, for one, am talking about "magnetic confinement of a thermalised plasma". I don't think there is any other way this can come close to working. I am..stunned... I don't know how to come back on that. You are saying that this will be a 6 billion Celsius thermalised plasma, with a central core ...

I am of the understanding that there are meant to be electrons that are confined in a cusp like magnetic field which creates a potential well that accelerates ions from the periphery into the focus at the centre. Is this in error? What I am talking about in this thread is that these ions in the peri...

Maybe this is so; a difference between how I think the device 'will' operate compared with its design intent. I will follow this through in the other threads...

best regards,

Chris MB.

chris, A good place to start would be to find an explanation for star formation in fusors. I wasn't aware that there is any great mystery. Ions start reciprocating through the grid and many get knocked out. Preferentially, they will fall into the minimum potentials through the centres of the openin...

Please explain why a virtual grid would operate differently than a physical grid. I'm not aware that I have suggested it will. (Though that might be another post.) I have not made any statement in this thread that would undermine the generation of small numbers of neutrons, either from Polywell or ...

Anyways, back to the issue of the total ion flux disrupting the core. If we need a total flux of 20MegaAmps flowing into the core and there is just a 1% variation in the flux coming into one hemisphere of this 1cm core compared with the flux into the other hemisphere, then we'd have a differential c...

I'm referring to the table fo data in http://www.askmar.com/Fusion_files/Polywell%20Ion%20Focus%20Concept.pdf Core radius, rc (m) = 1E-2 But still I do not understand you. Are we talking about the same device? AC: "The electric field inside a spherical shell of charge vanishes." So where are the fue...

MSimon wrote:chris,
In fusors "star formation" is considered normal and is the result of reasonably built eqpt.

There is no magnetic field holding the central grid together. This is the essential difference.

But surely that field neutralisation would happen almost instantly, quicker even than the transit time of an ion across the device (by definition - the former only requires the transit of an electron across the core). So when you say 'pulse mode' are you suggesting a pulse shorter than the cross-dev...

So the answer is that it is simulations that provide the idea the ions will have purely radial motion. Does the simulation also include predictions for the shape and strength of the magnetic fields generated by the coils, with all the little defects you would get in symmetry, or does it run with an ...

I need to clarify. In this calculation I am assuming the ions and electrons in the central core are quasi-neutral, with just the 7E11e = 1.1E-7C worth of charge forming the 110kV electrostatic potential well. I'm not questioning that, in this post. But outside this core, in the rest of the device, t...

The issue I was thinking was whether the magnetic field is strong enough to hold the electrons against the pull exerted on them by the ions. If my calculation above is OK, that there are 7E11 free electrons for a 110kV potential, and if they are at 100keV = ~170Mm/s so each electron is held by a for...