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:
Sep. 17, 2002
Filed:
Dec. 16, 1999
Applicant:
Inventors:
Andrew G. Weisenberger, Grafton, VA (US);
Stanislaw Majewski, Grafton, VA (US);
Assignee:
Southeastern Universities Research Assn., Newport News, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T 1/24 ; G01T 3/06 ; H01L 2/500 ; H01L 2/700 ;
U.S. Cl.
CPC ...
G01T 1/24 ; G01T 3/06 ; H01L 2/500 ; H01L 2/700 ;
Abstract
A system for improving the resolution of nuclear medicine gamma cameras. A pixellated crystal scintillator is optically connected to position sensitive photomultiplier tubes. Photons incident on the crystal scintillator travel a distance through the crystal that is directly proportional to the energy level of the photon before converting to photoelectrons. The system uses this depth of interaction information to classify the received photons according to their energy levels. Images may then be displayed using information from only those photons that are within the selected energy class.