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Re: Akula, Ruslan, Stalker, device discussion and replications. « Reply #624 on: 2023-09-23, 18:23:43 »
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Quote from: verpies on 2023-09-23, 16:48:46
I don't think I do because Chet just told me that the forum has limited number of benches.
I could but I prefer to wait until Itsu finishes verifying Nick's M.O. - I hope he knows more about it than I do.
That is an engineering detail that can be solved by following the guiding operational principle.
It predominantly depends on the strength of the magnets. The stronger the magnets the smaller the ring can be.
This is because stronger magnets curve the paths of the fast electrons/e+ more than weak magnets, so they don't escape the ring.
An additional DC winding over the soft ferrite can aid the magnets and increase the almost static axial magnetic flux density (B) inside the ring.
I have an equation for it but I need to know the strength of the magnets to use it. My intuition tells me 5cm < r < 10cm.
Who knows, maybe Itsu's pipe and magnets can satisfy the confinement condition already.
EDM is nice but slow and expensive. For larger rings the saw-cut slit can be closed down to zero by squeezing the ring externally.
Intuitively: 0.1mm should be enough to stop the large eddy currents. That's the common Kapton's tape thickness.
You DO have a bench available!! Just scroll down from the home page you’re between Vasik and Vidura….
As for EDM, I have direct access to a machine. There would be no expense other than the cost of posting. Don’t forget that by squeezing the gap you would create a taper to the gap.
Cheers Grum.
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Nanny state ? Left at the gate !!