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. 27, 2018
Filed:
Apr. 12, 2016
Applicant:
Varian Medical Systems, Inc., Palo Alto, CA (US);
Inventors:
Mark E. Trail, Menlo Park, CA (US);
Blake H. Gaderlund, Mountain View, CA (US);
Assignee:
Varian Medical Systems, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05H 7/22 (2006.01); A61N 5/10 (2006.01); H05H 9/00 (2006.01);
U.S. Cl.
CPC ...
H05H 7/22 (2013.01); A61N 5/1077 (2013.01); H05H 9/00 (2013.01); A61N 2005/1094 (2013.01); A61N 2005/1095 (2013.01);
Abstract
An apparatus includes an accelerator guide and a shielding structure enclosing the accelerator guide. The accelerator guide includes an electron source at a first end, a target at a second end, and a plurality of accelerating cavities coupled in series along a longitudinal axis between the first end and the second end. The accelerator guide has a contour as viewed in the longitudinal axis. The shielding structure has an inner wall surface defining a contour as viewed in the longitudinal axis generally conformal to the contour of the accelerator guide.