Capacitance of domed topload

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Original poster: "Dr Brian H Le Page by way of Terry Fritz <teslalist-at-qwest-dot-net>" <b.h.le-page-at-surrey.ac.uk>

Hi All

I have a problem working out the capacitance of a topload.  The shape is an
aluminium cylinder with a diameter of 715mm and a height of 280mm.  On top
of this is a hemisphere with the same diameter as the cylinder.  Can anyone
suggest a way to calculate the capacitance of this shape?  I can find an
expression for the capacitance of a sphere, but not for the cylinder.

Thanks

Dr B