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:
Jun. 30, 1987
Filed:
Oct. 18, 1985
Wai-Hoi Wong, Houston, TX (US);
Clayton Foundation for Research, Houston, TX (US);
Abstract
A positron emission tomography camera having a patient area with a plurality of fixed detector rings positioned side-by-side around the patient area to detect radiation. Each ring includes multiple layers of scintillation detectors in which the detectors in one of the layers is offset relative to the detectors in the other layers. The thickness of each layer increases exponentially from the inside of the ring to the outside of the ring. Identification of the scintillation detector may be performed by using layers with different timing constants, using silicon avalanche photodiodes or using a light guide transferring the light received from the staggered detectors to a non-staggered rectangular matrix.