Kimball Spheres

Every fusor and fusion system seems to need a vacuum. This area is for detailed discussion of vacuum systems, materials, gauging, etc. related to fusor or fusion research.
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Wilfried Heil
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Kimball Spheres

Post by Wilfried Heil » Fri Jan 13, 2006 2:44 pm

These look like the luxury version of a custom designed Fusor chamber. They are also luxury priced. Maybe they can be had used, I´ve seen one go on Ebay for about $ 600 a while ago.

One aspect is that they are some 20 mm thick, so that they can offer integral X-ray shielding.

Has anyone tried these? Where could they possibly be obtained as surplus?


> www.kimphys.com/mcf_vacuum_fittings/Cat ... r_Cube.pdf
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SteveHansen
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Re: Kimball Spheres

Post by SteveHansen » Tue Jan 17, 2006 1:08 am

Chuck Crawford, pres. of Kimball, is a genius when it comes to finely machined UHV hardware. In your picture of the sphere, the grooves are mounting slots for a line of electron and ion optic components. You can build a complete ion source by just snapping the correct parts in place. Oh, yeah, you need a good helping of cash.

Kimball is a short drive from where I live and I've visited his shop a number of times (it's an old farmhouse in the middle of an apple orchard). Great guy and a bit of a maverick. He helped get me established in the vacuum industry.

Wilfried Heil
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Re: Kimball Spheres

Post by Wilfried Heil » Tue Jan 17, 2006 6:41 pm

Thanks for the note on Kimball, I´ve just contacted them. I think these spheres would be very useful for an experimental chamber, because of the easy access from all sides. I also like the "grabber groove" feature.

Maybe the prototype of the spherical cube was a pumpkin or an apple once?

Captain_Proton
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Re: Kimball Spheres

Post by Captain_Proton » Sat Jan 21, 2006 7:48 am

Looks kinda' like Farsworth's grid...
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Wilfried Heil
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Re: Kimball Spheres

Post by Wilfried Heil » Sat Jan 21, 2006 3:35 pm

Interesting, looks like part of an electrostatic lens and a small fusor chamber by itself. If you have more photos of this design, could you perhaps post some in the "Image du Jour"?

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