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:
Apr. 15, 1986
Filed:
Oct. 10, 1984
Bernard Jacquot, Saint Egreve, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
The invention relates to a device for regulating an ionic current, particularly a highly charged metal ion current, obtained by vaporizing and then ionizing a solid material in an ultra-high frequency cavity with the aid of a hot electron plasma confined in said cavity. This plasma is produced by ionizing a gas as a result of the combined action of a high frequency electromagnetic field and a magnetic field, whose amplitude is such that the electron cyclotron resonance is satisfied. The device inter alia comprises a pulse generator, whereof the useful cycle is regulated in order to pulse the electromagnetic field and control its mean power, a valve for modifying the gas flow entering the cavity and means for controlling said valve in such a way that the pressure prevailing in the cavity remains constant.