Kenneth D Matthews

US Patent:

6459085, Oct 1, 2002

Filed:

Oct 26, 1999

Appl. No.:

09/427362

Inventors:

Wei Chang - Lisle IL
Kenneth Matthews - Chicago IL
Caesar Ordonez - Aurora IL

Assignee:

Rush Presbyterian-St. Lukes Medical Center - Chicago IL

International Classification:

G01J 2700

US Classification:

25037011, 25037001, 25037009, 250591, 250367

Abstract:

A device and method for determining the x- and y-positions, as well as the depth of interaction, of an interaction between a gamma ray and a scintillation crystal. In one embodiment, a first and a second sensor array are disposed on opposite sides of a scintillation crystal which is subjected in incident gamma radiation resulting in the release of photons. The first sensor array provides a measurement of the x- and y-positions of the interaction while the second sensor array provides a measurement of the depth-of-interaction. In one embodiment, the first sensor array is a photomultiplier array and the second sensor array is an array of wavelength-shifting fibers.