Patent Number: 6,310,349

Title: Method and apparatus to prevent signal pile-up

Abstract: Gamma cameras and positron (PET) cameras use scintillation detectors to detect radiation from the body. However, when the number of radiation particles that strike the detector is very high, the chance that signals from two or more individual particles will pile up in the detector (to produce one erroneous, larger signal) is high. This problem is common to all applications using scintillation detectors. The present invention discloses methods and apparatus to prevent and correct for this problem. Results from a circuit according to the present invention show at least a 10 fold improvement in the maximum detection-rate limit over the conventional method.

Inventors: Wong; Wai-Hoi (Houston, TX), Li; Hongdi (Houston, TX)

Assignee: Board of Regents, The University of Texas System

International Classification: G02F 1/035 (20060101); G02F 1/01 (20060101); G01T 1/00 (20060101); G01T 1/164 (20060101); G01T 1/161 (20060101); G01T 1/208 (20060101); G01T 001/208 ()

Expiration Date: 10/30/2018