torus electromagnets

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

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Postby GIThruster » Fri Jul 09, 2010 6:54 pm

"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

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Postby GIThruster » Sat Jul 10, 2010 3:12 pm

"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

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Postby D Tibbets » Sat Jul 10, 2010 4:50 pm

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

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Postby GIThruster » Sat Jul 10, 2010 4:59 pm

Mu Metal is used for shielding becasue its super-high permeability gives it the ability to draw magnetic flux into itself and away from other places. If you make a box out of it, imposed flux will travel through the MM walls and not penetrate the box because the reluctance of the box is many thousand times less than that of the air or vacuum in the box. It is highly anisotropic so constructing a box is not as simple as one might imagine.

Careful placement in places like the cusps might close them up entirely but you'd want to model this in 3D Mag field modeling software like Amperes to know for sure.
Last edited by GIThruster on Sun Jul 11, 2010 5:06 am, edited 2 times in total.
"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

D Tibbets
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Postby D Tibbets » Sat Jul 10, 2010 5:22 pm

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


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