HeyGrindle2654-- thanks for the update photos on your project (you forgot to scrub metadata on picture location,
Turn off location service on your iphone. I'll work on the photos you sent and post them when I get your ok...
I would probably go for the NiAr nickel argonide instead of the /iron argonide ( FeAr gas) due to the higher
magnetic susceptibilityof the former,
Since you are apparently going with the larger inside diameter tubing 0.5 instead of .375 inches as in the original,
your cross sectional area will be about 78% higher thus the magnetic flux will also be about 78% higher although
the inverse square rule for the flux (greater distance to the pickup windings)
will likely cause slight reduction in flux strength. I'll run it through fluxcalc and the AI programs to get some
suggestions and improvements on the design specs
The tubing you've selected has a pressure rating of 700 psi so you should be ok on your proposed Torr levels
Since Stan mentions the original gega only produced 220 v at 2 to 3 hundred amps, your improved model will
need much more robust wire on the output than 4 gauge copper cable. Also I would recommend increasing
the horizontal distance between the spiral gas channels and to increase dielectric on the wire windings between
the 6 spiral gas channels to prevent arcing although the voltage potential at 220 v at what appears to be about 12.5
cm between the spiral coils possible arcing can be mitigated by a liberal coating of RTV paste or some insulating
material such as a polyethylene tubing or rubber adhesive tape..
When I talked to Basil about the unit about 7 years ago( now deceased), he stated that he was the one who wound the coils..
He used enameled wire.
Also regarding the gas components::, the argon needs to be very dry (no water vapor) so running it past drierite (r)
and Freon (r) cooling would probably help.
The attached document shows that the sizing of the mechanical pump was appropriate in the mechanical
EPG series..It is assumed that the mag gas pump assembly was also sized appropriately, These were used in the
six tier system and placed in a vertical configuration as contrasted with the single horizontal placement used in the
magnetic spin epg series...