Significance of Electron Recirculation Revisited

Discuss how polywell fusion works; share theoretical questions and answers.

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bcglorf
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Re: Learning to ask the right question

Postby bcglorf » Wed Apr 07, 2010 2:43 pm


D Tibbets
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Re: Learning to ask the right question

Postby D Tibbets » Wed Apr 07, 2010 5:30 pm

To error is human... and I'm very human.

Art Carlson
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Re: Learning to ask the right question

Postby Art Carlson » Sat Apr 10, 2010 9:30 am


rcain
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Postby rcain » Sat Apr 10, 2010 5:32 pm


bcglorf
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Thanks Art

Postby bcglorf » Thu Apr 15, 2010 7:34 pm

Thanks for your reply again Art, unfortunately it's now far enough over my head I can't make heads or tails of it. In layman's terms, is the required density in the cusps theoretically impossible, or more positively a condition that is nearly impossible? I know, objectively simplifying that much is probably equally impossible but you've been so generous so far I'll just keep asking and get what I get :).

To reduce the density by a factor of 100 would require an increase in velocity by the same factor. This acceleration would require a potential drop (now parallel to the magnetic field of the cusp, if that is even possible) by a factor of 100^2, which introduces a problem significantly worse than the one we are trying to solve.

Is the potential on the magrid itself significant enough to be a factor in the cusp dynamic? To some degree or another it will be pushing ions out of the cusp, either to the wall or back into the core. I guess I'm blindly presuming that your assessment is ignoring the potential on the magrid as insignificant. I know you'll do that with good reason, and likely reasons I can't follow. I'm curious though if it is potentially a point were your assessment diverges from the more optimistic ones from Nebel and Bussard?

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Postby TallDave » Fri Apr 16, 2010 12:24 pm

n*kBolt*Te = B**2/(2*mu0) and B^.25 loss scaling? Or not so much? Hopefully we'll know soon...

rcain
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Postby rcain » Fri Apr 16, 2010 5:27 pm


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Postby Munchausen » Fri Apr 16, 2010 5:29 pm


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Postby mvanwink5 » Fri Apr 16, 2010 5:30 pm

Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

TallDave
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Postby TallDave » Fri Apr 16, 2010 6:03 pm

n*kBolt*Te = B**2/(2*mu0) and B^.25 loss scaling? Or not so much? Hopefully we'll know soon...

mvanwink5
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Postby mvanwink5 » Fri Apr 16, 2010 7:02 pm

Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

rcain
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Postby rcain » Fri Apr 16, 2010 8:27 pm


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Postby MSimon » Sat Apr 17, 2010 4:00 am


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Postby rcain » Sat Apr 17, 2010 4:49 am


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Postby MSimon » Sat Apr 17, 2010 5:02 am



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