Jones, I think you nailed it on the copper migration since it appears the copper tube is buried in the powder but when they say "said copper tube further including at least a heating electrical resistance" are they
Implying the internal resistor is INSIDE the copper pipe? Fran 9. An apparatus method according to claim 7, characterized in that in said nickel powder filled metal tube (2) is a copper tube, said copper tube further including at least a heating electrical resistance, said tube being encompassed by a jacket (7) including either water or boron or only boron, said jacket (7) being encompassed by further lead jacket (8) in turn optionally encompassed by a steel layer (9), said jackets (7, 8) being adapted to prevent radiations emitted from said copper tube (2) from exiting said copper tube (2), thereby also transforming said radiations into thermal energy.
