Robert D Mcelroy

US Patent:

20080084960, Apr 10, 2008

Filed:

Jul 13, 2007

Appl. No.:

11/777860

Inventors:

Stephen Croft - Middlefield CT, US
Susan Kane - Glastonbury CT, US
Patty McClay - Killingworth CT, US
Robert McElroy - Middletown CT, US
Wilhelm Mueller - Meriden CT, US
Marcel Villani - Ellington CT, US

International Classification:

A61B 6/00
G01N 23/06
G01T 1/16

US Classification:

378004000, 378053000, 250363040

Abstract:

A method for automating and extending the density range for gamma ray attenuation correction algorithms for all classes of non-destructive assay systems including those without automated shutters or automated collimators. A system and software for implementing the method are also provided. The system features a dual-intensity transmission source and utilizes a three pass scanning protocol. The high-energy source in conjunction with a beam modulator produces a high and low energy beam. Automated software determines which beam data to use in tomographic reconstruction of an object being scanned.