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[TCML] Re: Breakdown voltages of toroids

Hello Jim,
Thanks. This linearity is not expressed in the table attached to the
orignial email.

And, if so, why do most TC builders now use Toroidal over Spherical shapes ?

Alex P

For non-weird shapes with reasonably smooth curves, you can use the smallest radius of curvature to determine breakdown voltage. 30kV/cm is a handy approximation.

Be aware, though, that the idealized situation of a nice smooth surface and truly "free space" doesn't happen very often.

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