Plasma crucible sealing

Details Plasma crucible sealing Plasma crucible sealing

H - Electricity

01

J

H01J 9/395 (2006.01) H01J 9/40 (2006.01) H01J 65/04 (2006.01)

Patent

CA 2752949

A plasma crucible (92) has a through bore (93) and two tubes (981, 982) butt sealed on to the end faces (901, 902) of the crucible. One (981) of the tubes is closed prior to the filling of the crucible. The tube is tipped off and worked in a glass lathe to form it to have a flat end (983). After evacuation, dosing and gas fill, the other tube (902) is tipped off in the similar manner.

La présente invention porte sur un creuset à plasma (92) qui comprend un orifice traversant (93) et deux tubes (981, 982) scellés en bout sur les faces d'extrémité (901, 902) du creuset. L'un (981) des tubes est fermé avant le remplissage du creuset. Le bout du tube est coupé et on façonne le tube dans un tour à verre pour lui donner une forme présentant une extrémité plate (983). Après mise sous vide, dosage et remplissage de gaz, le bout de l'autre tube (902) est coupé d'une manière similaire.

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