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. 19, 2016
Filed:
Oct. 08, 2009
Eugen Stamate, Roskilde, DK;
Eugen Stamate, Roskilde, DK;
DANMARKS TEKNISKE UNIVERSITET, Kgs. Lyngby, DK;
Abstract
An apparatus and methods are disclosed for ion beam extraction. In an implementation, the apparatus includes a plasma source (or plasma) and an ion extractor. The plasma source is adapted to generate ions and the ion extractor is immersed in the plasma source to extract a fraction of the generated ions. The ion extractor is surrounded by a space charge formed at least in part by the extracted ions. The ion extractor includes a biased electrode forming an interface with an insulator. The interface is customized to form a strongly curved potential distribution in the space-charge surrounding the ion extractor. The strongly curved potential distribution focuses the extracted ions towards an opening on a surface of the biased electrode thereby resulting in anion beam.