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Comment on Portable 1MV X-ray system combines Cockcroft–Walton with Van de Graaff dome

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Very cool. I have a ~750 kV VDG that sits around gathering dust in the garage because it's such a pain to keep the moving parts aligned and running smoothly. Might have to retrofit it with a C-W stack.

How much you want for it?

It's not an easy thing to box up and ship, unfortunately. Also, another problem (and another incentive to strip the hardware and stuff the column with diodes and capacitors) is that it has seen a lot of salt air exposure from a nearby reef tank sump. In short, you don't want this particular one.

It is pretty similar to this: https://www.ebay.com/itm/167962146153 -- a bit bigger, and it originally cost about the same.

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