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:
Apr. 12, 2011
Filed:
Mar. 11, 2008
Kevin Holt, Chicago, IL (US);
Charles R. Smith, Libertyville, IL (US);
Kevin Holt, Chicago, IL (US);
Charles R. Smith, Libertyville, IL (US);
Varian Medical Systems, Inc., Palo Alto, CA (US);
Abstract
The provision of calibration information for a given high energy-based scanner having a plurality of detectors can comprise forming () detector-level calibration information for that scanner. This can comprise calculating () a theoretical trajectory as pertains to relative movement as between the plurality of detectors and a calibration object as a function of known geometry parameters for this particular scanner and then causing () relative movement as between this plurality of detectors and a calibration object to develop a corresponding observed trajectory for the calibration object. These teachings then provide for determining (), for each of at least some of the plurality of detectors, a value that corresponds to a difference between the theoretical trajectory and the observed trajectory to thereby provide the detector-level calibration information.