[Isotope-prod] Copper walls for the Gallium volume

[Pavel Degtiarenko]

Hi All,
In the proposed target system with liquid Ga cooled by Copper heat 
exchanger,  there might be a chance that Cu-67 generated in Ga will not 
stay in Ga as alloy, but would be deposited at the cold walls as a 
copper "frost". Then if it's Copper on Copper, there will be no chance 
to separate it from the wall. I guess a different non-wetting/non-sticky 
inert material should be used, may be sort of a thermoconductive glass 
or ceramics. The vessel then would need to be flushed with something 
that dissolves copper, upon the removal of Gallium.
That would be another question to professionals.
Regards,
Pavel