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:
Nov. 05, 2013
Filed:
Apr. 16, 2010
George James Caporaso, Livermore, CA (US);
Yu-jiuan Chen, Fremont, CA (US);
Scott Nelson, Patterson, CA (US);
Jim Sullivan, Livermore, CA (US);
Steven A. Hawkins, Livermore, CA (US);
George James Caporaso, Livermore, CA (US);
Yu-Jiuan Chen, Fremont, CA (US);
Scott Nelson, Patterson, CA (US);
Jim Sullivan, Livermore, CA (US);
Steven A. Hawkins, Livermore, CA (US);
Lawrence Livermore National Security, LLC, Livermore, CA (US);
Abstract
A virtual, moving accelerating gap is formed along an insulating tube in a dielectric wall accelerator (DWA) by locally controlling the conductivity of the tube. Localized voltage concentration is thus achieved by sequential activation of a variable resistive tube or stalk down the axis of an inductive voltage adder, producing a 'virtual' traveling wave along the tube. The tube conductivity can be controlled at a desired location, which can be moved at a desired rate, by light illumination, or by photoconductive switches, or by other means. As a result, an impressed voltage along the tube appears predominantly over a local region, the virtual gap. By making the length of the tube large in comparison to the virtual gap length, the effective gain of the accelerator can be made very large.