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. 21, 2015
Filed:
Nov. 15, 2013
Varian Medical Systems, Inc., Palo Alto, CA (US);
Daniel Shedlock, Knoxville, TN (US);
Timothy R. Fox, Chicago, IL (US);
Josh Star-Lack, Palo Alto, CA (US);
Richard E. Colbeth, Los Altos, CA (US);
Gary Virshup, Cupertino, CA (US);
James E. Clayton, San Jose, CA (US);
David T. Nisius, Des Plaines, IL (US);
Varian Medical Systems, Inc., Palo Alto, CA (US);
Abstract
Methods and systems for scanning objects comprising scanning a portion of an object by a first radiation beam having a first value of a beam characteristic, such as the dose, and detecting the first radiation beam after interaction with the object by a first detector. It is determined whether to change the first value to a second value based, at least in part, on the detected first radiation beam. That portion of the object is then scanned by a second radiation beam having the first value or the second value based on the determination. The second radiation is detected after interacting with the object by a second detector. The second detector may have a second resolution greater than a first resolution of the first detector. The first and second radiation beams may be formed by first and second slots angled with respect to each other.