Talk-Polywell.org

I won't argue about you other points, except to say that potential well formation has a lot of literature. Proceed through the Japan - US IEC conferences/ presentations as a starting source. Your point about more powerful E- guns being the key being a fallacy may be pertinent, tough I doubt in the ...

I guess we will agree to disagree then. Sounds more like believing what you choose to believe, rather than agreeing or disagreeing. Which statement is it that you disagree with, and why? I believe you underestimate the aggregate effect of the electron cloud producing the virtual cathode. You are ri...

But a 3m dia Polywell should be good for 100 MW. For the same magnet current if you can cut everything in 1/2 and volume by 1/8th you should be up to 200MW. That is a 16X improvement in density. Can you pump it? Yes, I can. But please: • inform resilts for 0.4 or whatever dia machine • please infor...

There seems to be a problem in engineering thinking. Thought experiment: 1. You build a machine it takes up 1 m^3 and delivers 1 KW. You can build them in 1KW increments. 2. Your friend builds a better machine. It delivers 100 KW per m^3. Its smallest size is 10,000 m^3. Which will you buy? Energy ...

So, your answer is that it IS bad, but that there are workarounds to bad things. That is fine, but different than your claim that there is no bad field curvature. Tokamak's simply have to live with it. As to a polywell, I spent quite a bit of time several years ago modeling a polywell type scenario...

How would I know what physical principles you are thinking of. One reason for k < 0 as bad is the basic Rayleigh–Taylor instability. Now, how is that not bad? Very good to speak with person who at least understands that instabilities of various types always present in plasma. The talk is not about ...

Of course it matters to me what I am interested in. I am not interested in throwing around vague words. If you can't give me physical principles, then this is a waste of time. And I do not think tokamak experts are idiots. I wonder how different the conversation would be though if one of them were ...

Carter, I have Joe's posts blocked, so I have been reding your side of the conversation. What strikes me most is that you sound like you are trying to reason with a petulant child. It seldom works. I see here quite many petulant children believing that tens thousands experts around the world are id...

If you only want to keep talking about k < 0 being just ok enough, then I'm not interested. Does not matter in what are you interested. I am only claiming that TOKAMAK having field similar to concave at other similar conditions provides better confinement than Stellarator with "minimum-B". So, such...

That is why continuously comparing everything to them is pointless. Agreed - pointless to compare. But: I have to agree that the "no toroidal stars" argument against the tokomak and other toroidal devices is weak. Unfavorable field curvature is a much stronger argument. My answer was only that ther...

That is why I said all things being equal it would be better, ........ You are stuck in a false dichotomy. And why? I asked two simple questions and by idea 8 generations of Polywell should prove something. But those proved nothing. Please answer on questions if you can. Then let's talk where I stu...

It may be just a coincidence that the outboard plasma surface has bad curvature while the inboard surface has good curvature. That is popular here myth. As toroidal machines Tokamak and Stellarator both have field's twist. And my simple thinking is of course guilty of concluding that all things bei...

admit when you were wrong: gradient != curvature. I never said that. I only said that popular here reasonings about advantage of convex field for stability does not work. And those reasoning is the special (flat) case of more common "minimum-B principle" that can be expressed by field gradient dB/d...

Of course the profiles depend on the machine. I was merely pointing out that your conclusions on field gradient and field curvature is only valid in a vacuum. We are not talking about vacuums here. We are talking about plasmas with pressures on order of atm's. I only mention that pressure profiles ...

Plasma pressure is not just at the edge. It is everywhere the plasma is. And the edge is not vacuum. If it were vacuum then you would be outside the edge. Plasma pressure profile is rarely flat, so you get gradients all over the place besides the edge. The bare minimum is that there be one at the e...