> My understanding is that it is 220 Vac per leg of a center-neutral wye
> which gives 380 Vac between legs.
>
> What kind of ion gun needs that kind of power?  What is it being used for?

Hi Dwayne,

I think you're right. I'd done some searching on the web and it seemed wye
was the usual configuration, but you never know with power distribution
and it's not my specialty. Well, I guess it is now :)

It's a 6 kilowatt unit, used for research. Mostly to test the quality of
optical coatings, perhaps to peel a few microns off the surface of glass.

Here's a picture of the gun:
http://www.bobblick.com/ion_gun.jpg
The connections shown are power in and water cooling. There's a gas input
connection on the backside.

and the power supply:
http://www.bobblick.com/ion_gun_ps.jpg

Cheers,

Bob

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