The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 1989
Filed:
Dec. 07, 1987
Rene Gualandris, Aix en Provence, FR;
Paul Ludwig, Grenoble, FR;
Jean-Claude Rocco, Claix, FR;
Francois Zadworny, Corenc, FR;
Commissariat A L'Energie Atomique, Paris, FR;
Abstract
A process for igniting a ultra-high frequency ion source using in a per se known manner, a resonator cavity supplied by a gas or a vapor of a material for forming a plasma, a system for injecting ultra-high frequency power into the cavity and a system for extracting ions of the plasma outside of the cavity, said process comprising the steps of forming the cavity to be of the multimode type, producing nucleating electrons within the medium to be ionized and preserving the plasma following its ignition solely by ultra-high frequency power. Apparatus for igniting an ultra-high frequency ion source using the process is also disclosed.