Anode layer ion source. Operation pictures

For the design and construction details of ion guns, necessary for more advanced designs and lower vacuums.
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Finn Hammer
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Real name: Finn Hammer
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Re: Anode layer ion source. Operation pictures

Post by Finn Hammer » Wed Nov 01, 2017 6:56 am

Andrew,
Please excuse my presence in this very advanced thread, but I have been looking for an opportunity, for a while, to ask why the anode was supported by only 3 screws, leaving the 4th. hole vacant.
I guess this post answers that.

Cheers, Finn Hammer

Andrew Seltzman
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Re: Anode layer ion source. Operation pictures

Post by Andrew Seltzman » Wed Nov 01, 2017 2:12 pm

Finn,

The original reason for the vacant hole was to allow a gas feed to come in through the back of the ion source, also the first ion source prototypes were hand machined, so the looser tolerances made the fasteners more likely to bind with the lower machining tolerances; only having three mounts reduced this probability. The original anode ring was also welded to threaded rods, so this would have been one less weld.
Andrew Seltzman
www.rtftechnologies.org

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