Apparatus and method for a modular electron beam system for...

H - Electricity – 01 – J

Patent

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H01J 37/06 (2006.01) H01J 33/00 (2006.01)

Patent

CA 2288911

A modular electron beam device is disclosed, the device being housed in a modular enclosure containing a power supply sub-system (12, 14, 16) coupled to provide power to an electron beam tube (20). The enclosure is shaped to permit stacking of plural such modular units in a way that the strip-shaped beam emitted form each of the units completely irradiates a surface to be treated. Beams may lie on different lines but the combined beams sweep out a width on a surface to be treated. Beams may lie on different lines but the combined beams sweep out a width on a surface which is a continuous span. In an alternate embodiment of the invention, the modular unit includes a plurality of electron beam units, each including a plurality of electron tube (20) and a filament and bias supply (14, 16) to power the tube. A single high voltage stack (12) is common to the plural tube/filament/bias sub-units. A daisy-chain arrangement allows for the single high voltage stack to power all of the tube units. The modular unit, in another embodiment, includes a plurality of electron tubes powered by a single power supply.

L'invention concerne un dispositif à faisceau électronique enfermé dans une enceinte modulaire ayant un sous-système d'alimentation (12, 14, 16) couplé de manière à alimenter un tube électronique (20). L'enceinte est configurée pour l'empilement de différents modules, de sorte que le faisceau en forme de ruban émanant de chaque module illumine complètement une surface à traiter. Bien que les faisceaux soient sur des lignes différentes, le balayage des faisceaux combinés couvre la largeur d'une surface en pan continu. Selon une variante, l'unité modulaire à une pluralité d'unités à faisceaux électroniques, comprenant chacune les éléments suivants : tube électronique (20), filament et source de polarisation (14, 16) pour alimenter le tube. Un seul étage haute tension (12) est commun aux différentes sous-unités tube/filament/source de polarisation. Une organisation en chaîne permet à cet étage unique d'alimenter toutes les unités de tube. Selon une autre variante, l'unité modulaire comporte une série de tubes électroniques alimentés par une source unique.

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