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:
Jul. 15, 2008
Filed:
Nov. 28, 2001
David D. Y. Chen, Vancouver, CA;
Donald J. Douglas, Vancouver, CA;
Bradley B. Schneider, Bradford, CA;
David D. Y. Chen, Vancouver, CA;
Donald J. Douglas, Vancouver, CA;
Bradley B. Schneider, Bradford, CA;
The University of British Columbia, Vancouver, British Columba, CA;
Abstract
An apparatus with means for controlling ion generation is discussed. The apparatus comprises a plurality of ion sources, at least one counter electrode mounted downstream for the ion sources and at least one ion controlling element mounted relative to at least one of the ion sources. Each ion controlling element is alternated between a first condition where the operation of at least one of the ion sources is enabled and a second condition where the operation of at least one of the ion sources is disabled. This concept may also be extended to an ion source apparatus having a single ion source with an ion lens mounted relative thereto. The present invention also provides a method for controlling the operation of the aforementioned apparatus. The invention further provides an apparatus and a method for the generation of ion pulses.