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:
Aug. 17, 2010
Filed:
Aug. 02, 2005
Klaus Fiedler, Aachen, DE;
Michael Geagan, Wayne, PA (US);
Gerd Muehllehner, Wayne, PA (US);
Walter Ruetten, Linnich, DE;
Andreas Thon, Aachen, DE;
Klaus Fiedler, Aachen, DE;
Michael Geagan, Wayne, PA (US);
Gerd Muehllehner, Wayne, PA (US);
Walter Ruetten, Linnich, DE;
Andreas Thon, Aachen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A time-of-flight PET nuclear imaging device (A) includes radiation detectors (), electronic circuits () for processing output signals from each of detectors (), a coincidence detector (), a time-of-flight calculator () and image processing circuitry (). A calibration system () includes an energy source () which generates an electrical or optical calibration pulse. The electrical calibration pulse is applied at an input to the electronics at an output of the detector and the optical calibration pulse is applied to a preselected point adjacent a face of each optical sensor () of the detectors. A calibration processor () measures the time differences between the generation of the calibration pulse and the receipt of a trigger signal from the electronic circuitry by the coincidence detector () and adjusts adjustable delay circuits () to minimize these time differences.