Antimagnets

Discuss the technical details of an "open source" community-driven design of a polywell reactor.

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DeltaV
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Post by DeltaV »


rjaypeters
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Post by rjaypeters »

Fascinating.

For Polywell applications, would this be a method of avoiding the cusps created by the close approach of the rings?* In effect, make each ring-generated magnetic field ignore the presence of the others? Confinement advantages? Structural advantages?

Maybe not, we want current carrying superconductors to create magnetic fields outside the ring casings. Would the ferromagnetic part of the shield attract the magnetic field generated by the internal superconductors?

*I forget which name is applied to those cusps.
"Aqaba! By Land!" T. E. Lawrence

R. Peters

DeltaV
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Post by DeltaV »

For Polywell, I see it possibly useful for test probes and/or support structures that don't affect the "ideal" B field.

rjaypeters
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Post by rjaypeters »

Support structures: "Revenge of the Nubs!" or less aggressive: "Return of the Nubs!"

EDIT:

And how could I have missed these?

"Revenge of the Nurbs!" or "Return of the Nurbs!"
"Aqaba! By Land!" T. E. Lawrence

R. Peters

KitemanSA
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Post by KitemanSA »

I hope not. This would make the nubs even more of a problem than they are now. It is the minor amount of magnetic field that protects them a bit now (kind of like the middle picture). Making the nub invisible magnetically makes it maximally attractive electrostatically, no?


DeltaV
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Re: Antimagnets

Post by DeltaV »

A Magnetic Wormhole
http://www.nature.com/articles/srep12488

Free PDF.

Image

DeltaV
Posts: 2245
Joined: Mon Oct 12, 2009 5:05 am

Re: Antimagnets

Post by DeltaV »

Three-dimensional magnetic cloak working from d.c. to 250 kHz
http://www.nature.com/ncomms/2015/15112 ... s9931.html

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