| http://www.w3.org/ns/prov#value | - The assembly of FIG. 7 is then secured to the pump-through ring 14 having cathode 18 secured therein by a solder or other means indicated at 61, the pump-through ring 14 having been secured to the tantalum vacuum or crimp-off tube 10 by laser fusion weld 15, and tube 10 is secured at end 11 to a flange 37 via a weld or braze 62.
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