Possibly a water-filled standpipe on one side pressurized
up to a few thousand psi with air.
Several small holes in the ceramic plate instead of one larger is
another possibility.
Water "pinch shaft" resistance before arc=plasma:
rho = R*area/ length or R = rho * length/area
----- Original Message -----From: TP SparberTo: vortex-lSent: 6/17/2006 9:57:21 AMSubject: RE: [Vo]: Re: Water Jet ArcMetal plates with a machined cavity filled with waterand "O" Ring sealed on each side of an alumina or quartz platewith a hole through it's center with voltage applied shouldcreate a pinch- plasma arc through the hole.Insulated bolts on the perimeter of the plates holding themagainst the ceramic, of course.

