Apparatus and method for reducing operating voltage in gas...

Details Apparatus and method for reducing operating voltage in gas... Apparatus and method for reducing operating voltage in gas...

H - Electricity

01

J

H01J 7/24 (2006.01) H01J 1/30 (2006.01) H01J 17/40 (2006.01) H01J 61/04 (2006.01) H01S 3/038 (2006.01)

Patent

CA 2354068

The present invention is a system and method for reducing the voltage necessary to produce a glow discharge in a gas (14). This is done by fabricating the cathode (20) in a gas discharge out of a conductive material that is permeable to the subject gas rather than out of a solid material, as in the prior art. Fabricating the cathode (20) with a permeable material rather than a solid material increases the surface area of the cathode (20) and provides the gas (14) with greater access to the cathode's surface. Increasing the surface area of the cathode (20) increases the total discharge current which can be extracted from the cathode (20) without increasing the extraction voltage. This allows the gas discharge device to be operated at a lower voltage than is possible using a cathode (20) fabricated of a solid material.

L'invention concerne un système et un procédé servant à diminuer la tension nécessaire pour produire une décharge luminescente dans un gaz (14). Ceci consiste à fabriquer la cathode (20) d'une décharge gazeuse dans un matériau conducteur perméable au gaz en question plutôt qu'en un matériau solide, comme dans l'état actuel de la technique. La fabrication de la cathode (20) avec un matériau perméable plutôt qu'avec un matériau solide augmente la surface de la cathode (20) et permet au gaz (14) un accès plus important à la surface de la cathode. L'augmentation de la surface de la cathode (20) accroît la totalité du courant de décharge qui peut être extrait de la cathode (20) sans augmenter la tension d'extraction. Ceci permet à l'appareil de décharge gazeuse de fonctionner à une tension plus basse qu'il est possible avec une cathode (20) fabriquée en un matériau solide.

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