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:
Oct. 01, 2004
Arthur Salop, Palo Alto, CA (US);
David H. Whittum, Sunnyvale, CA (US);
Michael A. Kauffman, Palo Alto, CA (US);
Mark E. Trail, Menlo Park, CA (US);
Gard E. Meddaugh, Mountain View, CA (US);
Arthur Salop, Palo Alto, CA (US);
David H. Whittum, Sunnyvale, CA (US);
Michael A. Kauffman, Palo Alto, CA (US);
Mark E. Trail, Menlo Park, CA (US);
Gard E. Meddaugh, Mountain View, CA (US);
Varian Medical Systems Technologies, Inc., Palo Alto, CA (US);
Abstract
A method for generating an electron beam includes prescribing a location, and generating an envelope of electrons, the envelope having a waist, wherein the generating is performed such that the waist of the envelope is at or adjacent to the prescribed location. A device for generating an electron beam includes a gun source for generating electrons, and a plurality of electromagnetic cavities coupled in series to form a body, the electromagnetic cavities configured to accelerate at least some of the electrons to create a beam of electrons at an energy level having a value between 5 MeV and 20 MeV, the beam of electrons having a cross sectional dimension that is 0.02 λ (or 2 mm) or less.